Chemical Sparks Quiz Wisconsin HSED Prep • Physical Science
Chemical Sparks Quiz
MODULE 1: CHEMISTRY Printable Exam
Student Name:
Date:
Side-by-Side Glossary
Chemical Change: A reaction that creates a new substance with different properties.
Reactants: Starting ingredients in a reaction (found on the left side).
Limiting Reactant: The ingredient that runs out first, stopping the reaction.
Products: New substances made by the reaction (found on the right side).
SEC A Interpreting Chemical vs. Physical Changes
1. A student monitors a test tube reaction. They observe bubbling, heat emission, and a new cloudy white precipitate forming at the bottom.
Step 1: Identify Evidence
Check all signs of a chemical change observed here:
Bubbles (gas release)
Precipitate (solid formed)
Temperature change
Step 2: Draw Conclusion
Based on this evidence, what type of change occurred?
Physical Change
Chemical Change
SEC B Interpreting Models & Predicting Outcomes
Scientific Model: Formation of Water
Reactants
\(2H_2 + O_2\)
Products
\(2H_2O\)
Atom Legend:
Hydrogen (H) • Mass: 1g
Oxygen (O) • Mass: 16g
Part A: Model Atom Counting 1.5 pts
Count the total number of individual atoms on each side of the model:
Reactants: ______ H atoms ______ O atoms
Products: ______ H atoms ______ O atoms
Part B: Mass Conservation Calculations 1.5 pts
Calculate reactant and product masses to verify conservation of mass:
Reactant Total Mass:
4(1g) + 2(16g) = _________ g
Product Total Mass:
4(1g) + 2(16g) = _________ g
Part C: Predicting Leftover Atoms (Limiting Reactant) 2 pts
Suppose you combine 4 Hydrogen molecules (8 H atoms) and 1 Oxygen molecule (2 O atoms) .
1. Predict Water Molecules Formed:
How many \(H_2O\) can be created before Oxygen runs out?
2 \(H_2O\) molecules
4 \(H_2O\) molecules
2. Predict Leftovers:
What atoms will remain completely unreacted?
4 Hydrogen (H) atoms
2 Oxygen (O) atoms
Wisconsin HSED Prep Module 1: Chemistry Quiz Page 1 of 2
Wisconsin HSED Prep • Physical Science
Chemical Sparks Quiz
MODULE 1: CHEMISTRY Printable Exam
SEC C Visual Guide: Balancing Chemical Equations
Visual Step-by-Step Organizer
An equation is balanced when atoms on the left match the atoms on the right. We change coefficients (the numbers in front) to balance them—never change small subscripts.
1. Count Left & Right
2. Find Imbalance
3. Adjust Coefficients
3. Balance the chemical equation representing the synthesis of Ammonia (\(NH_3\)):
____ \(N_2\) + ____ \(H_2\) ____ \(NH_3\)
Step 1: Check Unbalanced State
Nitrogen (N) Reactants: 2 atoms
Nitrogen (N) Products: 1 atom
Hydrogen (H) Reactants: 2 atoms
Hydrogen (H) Products: 3 atoms
Step 2: Balance Nitrogen
Place a coefficient of 2 in front of \(NH_3\). How many total Hydrogen atoms are on the product side now?
3 Hydrogen atoms
6 Hydrogen atoms (2 x 3)
Step 3: Final Balance
To balance 6 Hydrogen atoms on the right, what coefficient must go in front of \(H_2\) on the left? (Hint: \(\text{___} \times 2 = 6\))
2
3
SEC D Interpreting Diagrams & Predicting Reaction Rates
4. Students measured how long a zinc-acid reaction took to release 50 mL of gas at different temperatures:
Test
Temperature
Time to Finish
A
20 °C (Room Temp)
120 seconds
B
40 °C (Warm)
60 seconds
C
60 °C (Hot)
30 seconds
Step 1: Predict Outcome
If students run Test D at 80 °C , predict the reaction time:
15 seconds (Halved again)
150 seconds (Takes longer)
Step 2: Link Content & Write Conclusion:
"Increasing temperature makes molecules move faster / slower, which causes more / fewer collisions and speeds up the reaction rate."
Based on the table, I conclude that higher temperatures...
Wisconsin HSED Prep Module 1: Chemistry Quiz Page 2 of 2
Chemical Sparks Teacher Guide Wisconsin HSED Prep • Physical Science
Chemical Sparks Teacher Guide
MODULE 1: CHEMISTRY Answer Key
Target Assessment: Chemical Sparks Quiz
Total Points: 12 Points (HSED Aligned)
Key Standards: WI HSED Science Standard 1
Section A Answer Key: Physical vs. Chemical Changes
1. Evidence & Conclusion (2 Points total):
Step 1: Evidence: All three boxes must be checked: Bubbles, Precipitate, and Temperature change.
Step 2: Conclusion: Correct choice is Chemical Change because new substances are formed and cannot be easily reversed.
Section B Answer Key: Interpreting Models & Predicting Outcomes
2. Model Counting, Calculations & Prediction (5 Points total):
Part A: Atom Counting (1.5 Pts): Reactants have 4 H and 2 O atoms. Products have 4 H and 2 O atoms.
Part B: Mass Calculations (1.5 Pts): Both reactant and product side equal 36 g (4x1g + 2x16g). This mathematically proves conservation of mass.
Part C: Predicting Leftover Atoms (2 Pts):
1. Water Molecules: 2 \(H_2O\). (Because we only have 2 Oxygen atoms, which limit the reaction).2. Leftovers: 4 H atoms. (8 H atoms initially minus 4 H used = 4 H atoms left unreacted).
Section C Answer Key: Balancing Chemical Equations
3. Balancing Synthesis of Ammonia (2 Points total):
Balanced Equation: 1 \(N_2\) + 3 \(H_2\) \(\rightarrow\) 2 \(NH_3\).
Step 2: Correct choice is 6 Hydrogen atoms (2 x 3) .
Step 3: Correct choice is 3 . (Multiplying coefficient 3 by subscript 2 gives 6 H atoms on reactants side).
Section D Answer Key: Diagrams & Predicting Reaction Rates
4. Table Interpretation, Prediction & Rubric (3 Points total):
Step 1: Predict Outcome (1 Pt): Correct is 15 seconds . The trend shows that as temperature increases by 20 °C, the reaction time is halved (120s \(\rightarrow\) 60s \(\rightarrow\) 30s \(\rightarrow\) 15s ).
Step 2: Conclusion Frame (1 Pt): "Increasing temperature makes molecules move faster , which causes more collisions..."
Step 3: Short Response (1 Pt): Student must express that as temperature increases, reaction time decreases (reaction rate increases). Credit given for complete sentences stating this relationship.
Adult Educator Pedagogical Tips
The "Limiting Reactant" Sandwich Analogy: To make 1 cheese sandwich, you need 2 slices of bread and 1 slice of cheese. If you have 8 slices of bread and only 1 slice of cheese, you can still only make 1 sandwich. The cheese is the limiting reactant, and you have 6 slices of bread left over. Relate this directly to oxygen and hydrogen molecules.Collision Theory Simplified: Help adult learners connect heat to kinetic energy. Hotter molecules have more speed, causing them to slam into each other more often and with greater force, speeding up chemical bonding.
Wisconsin HSED Prep Module 1: Chemistry Teacher Resource Answer Key • Page 1 of 1
Chemical Sparks Essentials Quiz Wisconsin HSED Prep • Physical Science (Essentials)
Chemical Sparks Essentials Quiz
MODULE 1: CHEMISTRY Essentials Exam
Student Name:
Date:
Easy Glossary
Chemical Change: Makes a new substance (like baking a cake).
Physical Change: Stays the same substance (like melting ice).
Reactants: Starting ingredients on the left side of the arrow.
Products: New things made on the right side of the arrow.
SEC A Chemical vs. Physical Changes
1. A student mixes two liquids in a test tube. They see bubbles, feel the tube get hot, and see a new solid powder form at the bottom.
Step 1: Check the Evidence
What are the signs of a chemical reaction here? (Select all that apply):
Bubbles (gas release)
Solid powder forming
Temperature increase (gets hot)
Step 2: Draw a Conclusion
Based on these active signs, what type of change occurred?
Physical Change
Chemical Change
SEC B Chemical Models & Conservation of Mass
Model: Hydrogen and Oxygen making Water
Reactants (Left)
\(2H_2 + O_2\)
Products (Right)
\(2H_2O\)
Atom Legend:
Hydrogen (H) • Mass: 1g
Oxygen (O) • Mass: 16g
Part A: Model Atom Counting
Look at the model above. Count the individual spheres on the reactant (left) side and product (right) side.
1. Total atoms on the REACTANT (left) side:
4 total atoms
6 total atoms (4 H + 2 O)
2. Total atoms on the PRODUCT (right) side:
6 total atoms (4 H + 2 O)
8 total atoms
Part B: Conservation of Mass
The Law of Conservation of Mass states that mass cannot be created or destroyed. The total starting mass must equal the total ending mass.
Reactant (Left) Mass:
4 Hydrogen (4g) + 2 Oxygen (32g) = 36g
Based on this law, what must the Product (Right) Mass be?
18g
36g
72g
Part C: Limiting Reactants (Running Out)
Suppose you combine 4 Hydrogen molecules (8 H atoms) and 1 Oxygen molecule (2 O atoms) .
1. Predict Water Molecules Formed:
Oxygen runs out first. How many \(H_2O\) can you make?
2 \(H_2O\) molecules (uses all 2 O atoms)
4 \(H_2O\) molecules
2. Predict Leftovers:
What atoms will be left over (unused) at the end?
4 Hydrogen (H) atoms (unused)
2 Oxygen (O) atoms (unused)
Wisconsin HSED Prep Module 1: Chemistry Quiz (Essentials) Page 1 of 2
Wisconsin HSED Prep • Physical Science (Essentials)
Chemical Sparks Essentials Quiz
MODULE 1: CHEMISTRY Essentials Exam
SEC C Balancing Chemical Equations
Easy Equation Rules
An equation is balanced when the number of atoms on the reactant (left) side matches the product (right) side. We only change the big numbers in front (coefficients). We never change small subscript numbers.
1. Count Left & Right Atoms
2. Identify the Imbalance
3. Multiply to Balance
3. Let's balance this equation representing how Ammonia (\(NH_3\)) is made:
____ \(N_2\) + ____ \(H_2\) ____ \(NH_3\)
Step 1: Check Current Atoms
Nitrogen (N) Reactants: 2 atoms
Nitrogen (N) Products: 1 atom (Imbalance!)
Hydrogen (H) Reactants: 2 atoms
Hydrogen (H) Products: 3 atoms (Imbalance!)
Step 2: Balance Nitrogen
We put a coefficient of 2 in front of \(NH_3\). This gives us: \(N_2 + H_2 \rightarrow \mathbf{2} NH_3\).
How many Hydrogen (H) atoms are on the right side now?
3 Hydrogen atoms
6 Hydrogen atoms (2 molecules × 3 atoms)
Step 3: Final Hydrogen Balance
Now we have 6 Hydrogen atoms on the right side. To get 6 Hydrogen atoms on the left side, what number must we place in front of \(H_2\)? (Hint: \(\text{___} \times 2 \text{ atoms} = 6 \text{ atoms}\))
Coefficient 2 (gives 2 × 2 = 4 atoms)
Coefficient 3 (gives 3 × 2 = 6 atoms)
SEC D Analyzing Tables & Predicting Reaction Rates
4. Students measured how long a zinc-acid reaction took to release 50 mL of gas at different temperatures:
Test
Temperature
Reaction Time (to finish)
A
20 °C (Room Temp)
120 seconds
B
40 °C (Warm)
60 seconds (half time)
C
60 °C (Hot)
30 seconds (half time)
Step 1: Predict the Time
If students run Test D at an even higher temperature of 80 °C , predict how long it will take:
15 seconds (halved again; faster)
150 seconds (takes longer; slower)
Step 2: Scientific Conclusion
Based on the data in the table, which of the following is the best conclusion about temperature and reaction rates?
Higher temperatures slow reactions down because molecules move slower and collide less.
Higher temperatures speed reactions up because heat makes molecules move faster, causing more collisions in less time.
Changing the temperature has no effect on how fast chemical reactions happen.
Wisconsin HSED Prep Module 1: Chemistry Quiz (Essentials) Page 2 of 2
Chemical Sparks Essentials Teacher Guide Wisconsin HSED Prep • Physical Science
Chemical Sparks Essentials Teacher Guide
MODULE 1: CHEMISTRY Essentials Key
Target Assessment: Chemical Sparks Essentials Quiz
Total Points: 12 Points (Essentials)
Key Focus: Reading & Calc Scaffolding
Section A Solutions: Chemical vs. Physical Changes
1. Evidence & Conclusion (2 Points total):
Step 1 (1 Pt): All three evidence options must be checked: Bubbles (gas release), Solid powder forming, and Temperature increase (gets hot).
Step 2 (1 Pt): Correct multiple choice is Chemical Change because bubbles, heat, and powder indicate reaction products.
Section B Solutions: Chemical Models & Conservation of Mass
2. Scaffolded MC Solutions (5 Points total):
Part A: Model Atom Counting (1.5 Pts):
Reactant atoms: 6 total atoms (4 H + 2 O)
Product atoms: 6 total atoms (4 H + 2 O)
Part B: Conservation of Mass (1.5 Pts): Correct MC choice is 36g . The law says starting mass must equal ending mass (mass is conserved).
Part C: Limiting Reactants (2 Pts):
1. Water Molecules: 2 \(H_2O\) molecules (uses all 2 O atoms) .2. Leftovers: 4 Hydrogen (H) atoms (unused) . Initially 8 H atoms, 4 H used in 2 water molecules, leaves 4 H unused.
Section C Solutions: Balancing Chemical Equations
3. Synthesis of Ammonia (2 Points total):
Step 2 (1 Pt): Correct multiple-choice selection is 6 Hydrogen atoms (2 molecules × 3 atoms) .
Step 3 (1 Pt): Correct multiple-choice selection is Coefficient 3 (gives 3 × 2 = 6 atoms) . Placing coefficient 3 in front of \(H_2\) yields 6 reactant Hydrogen atoms to balance the 6 on the product side.
Section D Solutions: Analyzing Tables & Reaction Rates
4. Rates Analysis (3 Points total):
Step 1: Predict Time (1.5 Pts): Correct is 15 seconds (halved again; faster) . The rate doubles and time halves for every 20 °C increase.
Step 2: Conclusion Frame (1.5 Pts): Correct MC choice is the second option: "Higher temperatures speed reactions up because heat makes molecules move faster, causing more collisions in less time." (This replaces the open-ended writing response to isolate physical science conceptual knowledge).
Adult Accommodation & Differentiation Guidelines
Isolating the Construct: This essentials quiz removes the barrier of written expression and open text-entry. By converting math and synthesis steps to structured multiple-choice questions, you are measuring physical science knowledge rather than English writing fluency or math anxiety.Pacing and Support: Use this version for students with specific IEP/504 accommodations, emerging readers, or as a diagnostic review. If an adult student is struggling, encourage them to highlight keywords in the Easy Glossary first.
Wisconsin HSED Prep Module 1: Chemistry Teacher Resource (Essentials) Answer Key • Page 1 of 1
Motion Master Quiz Wisconsin HSED Prep • Physical Science
Motion Master Quiz
MODULE 2: PHYSICS Printable Exam
Student Name:
Date:
Side-by-Side Glossary
Velocity (v): Speed in a specific direction. Formula: \(v = \frac{d}{t}\).
Net Force (\(F_{\text{net}}\)): Total overall force when all forces are combined (added or subtracted).
Newton's 2nd Law: Force equals mass times acceleration (\(F = m \times a\)).
Friction Force: Force that opposes motion, acting in the opposite direction.
SEC A Calculating Velocity (Speed & Direction)
Formula Triangle
d vt
How to solve for speed/velocity:
Cover v with your finger. You are left with d over t . This tells you to divide: \(\text{Velocity} = \text{Distance} \div \text{Time}\). Always write direction!
1. A delivery truck travels 150 kilometers North along Interstate 43 in exactly 2 hours. What was the truck's velocity?
Step 1: Identify Variables
Distance (d): ________ km
Time (t): ________ hrs
Step 2: Set Up Equation
Divide distance by time:
\(\frac{\text{_____ km}}{\text{_____ hrs}}\)
Step 3: Calculate & Solve
75 km/h North
300 km/h North
SEC B Interpreting Force Diagrams & Net Force
2. A student pushes a storage box on wheels across the gym floor. Study the force diagram below:
Force Diagram
Friction = 5 N
Box
Push = 15 N
Vector Analysis:
Forces in opposite directions (Left vs. Right) subtract from one another. The leftover force is the Net Force , which determines acceleration.
Part A: Net Force
Subtract friction from applied force:
\(15\text{ N} - 5\text{ N} = \text{______ N}\)
Part B: Predict Direction
Which direction will the box accelerate?
East (Right)
West (Left)
Part C: Predict Outcome
If friction is increased to 15 N (equal to the push):
Net Force 0 N (No acceleration)
Box speeds up faster
Wisconsin HSED Prep Module 2: Physics Quiz Page 1 of 2
Wisconsin HSED Prep • Physical Science
Motion Master Quiz
MODULE 2: PHYSICS Printable Exam
SEC C Interpreting Motion Graphs & Predicting Outcomes
Motion Data Table
Time (s)
Distance (m)
State of Motion
0 s
0 m
At Start
2 s
10 m
Constant Speed
4 s
20 m
Constant Speed
6 s
20 m
Stopped (Rest)
8 s
30 m
Constant Speed
Distance-Time Plot
Distance (m)
Time (s)
30 20 10 0 2 4 6 8
3. Analyze the table data and plot trends to complete each part:
Part A: Constant Speed
Calculate speed between 0s and 4s:
\(\frac{20\text{ meters}}{4\text{ seconds}} = \text{______ m/s}\)
5 m/s
10 m/s
Part B: Flat Line Meaning
Between seconds 4 and 6, the line is flat. This indicates:
Object is stopped
Object accelerates
Part C: Predict Next Position
If the object continues to move at the same speed as the last segment (from 6s to 8s):
Predict distance at 10 s: ______ meters
SEC D Linking Concepts & Drawing Conclusions
4. When a car suddenly slams on its brakes, passengers fly forward towards the dashboard. Explain this scenario using Newton's First Law of Motion (Inertia).
Response Sentence Frame Guide:
"Before braking, both the car and the passengers are moving forward. When brakes apply an external force to stop the car, the passengers continue moving forward because of inertia, which is their natural tendency to stay in motion."
Write your physical science conclusion below:
The passenger keeps moving because...
Wisconsin HSED Prep Module 2: Physics Quiz Page 2 of 2
Motion Master Teacher Guide Wisconsin HSED Prep • Physical Science
Motion Master Teacher Guide
MODULE 2: PHYSICS Answer Key
Target Assessment: Motion Master Quiz
Total Points: 12 Points (HSED Aligned)
Key Standards: WI HSED Science Standard 2
Section A Answer Key: Calculating Velocity
1. Truck Velocity Calculation (3 Points total):
Step 1: Identify: Distance = 150 km , Time = 2 hours .
Step 2: Set Up: \(\frac{150\text{ km}}{2\text{ hrs}}\).
Step 3: Calculate: Correct Choice is 75 km/h North (must specify the speed magnitude *and* direction to count as velocity).
Section B Answer Key: Interpreting Force Diagrams
2. Vector Analysis & Outcome Predictions (4 Points total):
Part A: Net Force (1.5 Pts): \(15\text{ N (East)} - 5\text{ N (West)} =\) 10 N .
Part B: Predict Direction (1 Pt): Correct Choice is East (Right) because the applied force pointing East is larger than friction pointing West.
Part C: Predict Outcome (1.5 Pts): Correct Choice is Net Force is 0 N (No acceleration). When opposing forces are completely balanced, the net force is zero and the object's velocity will remain constant (no acceleration occurs, as stated in Newton's 1st law).
Section C Answer Key: Interpreting Motion Graphs
3. Graph Interpretation & Predictions (3 Points total):
Part A: Constant Speed (1 Pt): Correct Choice: 5 m/s . Calculated as \(\frac{20\text{ meters}}{4\text{ seconds}}\).
Part B: Flat Line Meaning (1 Pt): Correct Choice: Object is stopped . Time is moving but distance has flatlined, meaning position does not change.
Part C: Predict Next Position (1 Pt): Correct Prediction: 40 meters . The last segment from 6s to 8s increases distance by 10 meters (from 20m to 30m). Continuing this constant speed of 5 m/s, the position at 10 seconds will be \(30\text{ m} + 10\text{ m} =\) 40 m .
Section D Answer Key: Linking Concepts
4. Inertia Open Response Rubric (2 Points total):
2 Points: Student explains that passengers continue moving forward because of inertia . They must point out that when brakes stop the car, the passenger keeps moving forward because their body resists the change in motion.
1 Point: Student simply names "inertia" or "Newton's 1st Law" but fails to link it to the passenger continuing forward motion relative to the braking car.
Adult Educator Pedagogical Tips
Overcoming Math-Heavy Physics Fears: Emphasize conceptual math first. When teaching net force, describe it as a "tug-of-war" game. If East pulls with 15 friends and West pulls with 5 friends, East wins by 10. This logic matches subtracting force vectors completely!Position Prediction: Teach HSED students to always look for "intervals" or rate patterns in a data table before extrapolating. Show them that distance increases by +10 meters every 2 seconds during constant speed intervals.
Wisconsin HSED Prep Module 2: Physics Teacher Resource Answer Key • Page 1 of 1
Motion Master Essentials Quiz Wisconsin HSED Prep • Physical Science (Essentials)
Motion Master Essentials Quiz
MODULE 2: PHYSICS Essentials Exam
Student Name:
Date:
Easy Glossary
Velocity (v): Speed in a certain direction. Formula: \(\text{Speed} = \frac{\text{Distance}}{\text{Time}}\).
Net Force: The overall leftover force on an object.
Newton's 2nd Law: Force equals Mass times Acceleration (\(F = m \times a\)).
Friction Force: A rubbing force that acts in the opposite direction to slow objects down.
SEC A Calculating Velocity (Speed & Direction)
Formula Guide
d vt
How to solve speed:
To find speed or velocity (\(\mathbf{v}\)), divide distance (\(\mathbf{d}\)) by time (\(\mathbf{t}\)). Remember to include direction (like North or East) in your final answer!
1. A delivery truck travels 150 kilometers North along Interstate 43 in exactly 2 hours. What was the truck's velocity?
Step 1: Identify Numbers
What numbers are given in the problem?
Distance = 150 km, Time = 2 hours
Distance = 2 km, Time = 150 hours
Step 2: Set Up Formula
Divide distance by time:
\(150 \text{ km} \div 2 \text{ hours}\)
\(2 \text{ hours} \div 150 \text{ km}\)
Step 3: Calculate Answer
Calculate and add the direction:
75 km/h North
300 km/h North
SEC B Force Diagrams & Net Force
2. A student pushes a storage box on wheels across the gym floor. Study the force diagram below:
Force Diagram
Friction = 5 N
Box
Push = 15 N
Vector Analysis:
Forces in opposite directions (Left vs. Right) subtract from one another. The leftover force is the Net Force .
Part A: Net Force
Forces oppose each other. Subtract friction from push:
15 N - 5 N = 10 N
15 N + 5 N = 20 N
Part B: Direction
Which direction will the box accelerate?
East (Right) - push is stronger
West (Left) - friction is stronger
Part C: Balanced forces
If friction is increased to 15 N (equal to the 15 N push):
Forces are balanced (0 N Net Force)
Box accelerates even faster
Wisconsin HSED Prep Module 2: Physics Quiz (Essentials) Page 1 of 2
Wisconsin HSED Prep • Physical Science (Essentials)
Motion Master Essentials Quiz
MODULE 2: PHYSICS Essentials Exam
SEC C Interpreting Motion Graphs
Motion Data Table
Time (s)
Distance (m)
State of Motion
0 s
0 m
At Start
2 s
10 m
Constant Speed
4 s
20 m
Constant Speed
6 s
20 m
Stopped (At Rest)
8 s
30 m
Constant Speed
Distance-Time Plot
Distance (m)
Time (s)
30 20 10 0 2 4 6 8
3. Analyze the table and graph above to answer these questions:
Part A: Constant Speed
What is the object's speed between 0 and 4 seconds? (Hint: \(\text{Speed} = 20\text{ meters} \div 4\text{ seconds}\))
5 m/s (5 meters per second)
10 m/s (10 meters per second)
Part B: Flat Line Meaning
Between seconds 4 and 6, the line is completely flat. What does this tell us?
The object has stopped moving
The object is accelerating
Part C: Predict Distance
At 8 seconds, the distance is 30 meters. If the object continues at a speed of 5 m/s for 2 more seconds, what will the distance be at 10 seconds?
35 meters (30m + 5m)
40 meters (30m + 10m)
SEC D Connecting Concepts & Drawing Conclusions
4. Read this real-world scenario about Newton's First Law (Inertia):
The Scenario: Braking in a Car
Before a driver hits the brakes, both the car and the passengers inside are moving forward together at 50 mph. When the driver suddenly slams on the brakes, the car stops immediately, but the passengers fly forward toward the dashboard.
Why do the passengers fly forward? (Select the best scientific reason):
The brakes apply a strong forward push directly to the passengers' bodies when the pedal is pressed.
Because of inertia. Their bodies were already moving forward, and an object in motion tends to stay in motion until a force acts on it.
Gravity acts stronger on people than on cars, which pulls the passengers forward faster than the car can stop.
Wisconsin HSED Prep Module 2: Physics Quiz (Essentials) Page 2 of 2
Motion Master Essentials Teacher Guide Wisconsin HSED Prep • Physical Science
Motion Master Essentials Teacher Guide
MODULE 2: PHYSICS Essentials Key
Target Assessment: Motion Master Essentials Quiz
Total Points: 12 Points (Essentials)
Key Focus: Reading & Graph Scaffolding
Section A Solutions: Calculating Velocity
1. Truck Velocity Calculation (3 Points total):
Step 1 (1 Pt): Correct MC choice is Distance = 150 km, Time = 2 hours .
Step 2 (1 Pt): Correct MC choice is \(150 \text{ km} \div 2 \text{ hours}\) . Emphasize that speed equals distance divided by time.
Step 3 (1 Pt): Correct MC choice is 75 km/h North . Emphasize that velocity must have both a speed magnitude *and* a direction (North).
Section B Solutions: Force Diagrams & Net Force
2. Vector Analysis Solutions (4 Points total):
Part A: Net Force (1.5 Pts): Correct MC choice is 15 N - 5 N = 10 N . Opposing left-and-right vectors are subtracted to find the leftover Net Force.
Part B: Direction (1 Pt): Correct MC choice is East (Right) - push is stronger . The box accelerates in the direction of the larger force.
Part C: Changing Friction (1.5 Pts): Correct MC choice is Forces are balanced (0 N Net Force) . When opposing vectors are equal in size (15 N vs 15 N), they cancel out, resulting in a zero net force.
Section C Solutions: Interpreting Motion Graphs
3. Graph Analysis MC Solutions (3 Points total):
Part A: Constant Speed (1 Pt): Correct choice is 5 m/s (5 meters per second) . Found by dividing distance at 4 seconds (20m) by time (4s).
Part B: Flat Line Meaning (1 Pt): Correct choice is The object has stopped moving . A flat horizontal line means distance does not change as time advances.
Part C: Predict Next Position (1 Pt): Correct choice is 40 meters (30m + 10m) . Since speed is 5 m/s, traveling for 2 more seconds increases distance by 10 meters (from 30m to 40m).
Section D Solutions: Connecting Concepts
4. Newton's 1st Law - Inertia (2 Points total):
Inertia MC Choice: Correct selection is the second option: "Because of inertia. Their bodies were already moving forward, and an object in motion tends to stay in motion until a force acts on it."
Note: Replacing the open-ended writing prompt here with an essentials-focused multiple choice choice allows learners to prove understanding of inertia without the compounding barrier of sentence drafting.
Adult Accommodation & Differentiation Guidelines
Reducing Math & Writing Barriers: Adult learners are frequently blocked by heavy algebraic calculations and open writing fields. This Essentials assessment focuses on the physics concepts (dividing distance/time, understanding vector subtraction, and translating inertia) without the compounding stress of formatting calculations.Universal Design: These accommodated answer keys can be printed or displayed to provide instant student self-correction, fostering immediate feedback and agency.
Wisconsin HSED Prep Module 2: Physics Teacher Resource (Essentials) Answer Key • Page 1 of 1
