Educational worksheets on Newton's Laws of Motion, designed for classroom use, featuring explanations, examples, and practice problems.

You're looking at a worksheet set on Newton’s Laws of Motion from Laney Lee (www.laney-lee.com). Since you mentioned uploading an image, but I can’t view images, I’ll solve the problems based on the text visible in your description, which appears to be a collection of questions from multiple pages of this worksheet.

I’ll break down and solve each question according to Newton’s Three Laws:

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## 🔹 NEWTON’S FIRST LAW (Inertia)
> *An object at rest remains at rest and an object in motion remains in motion, unless acted on by an unbalanced force.*

Question 1:

> “Dan drives a pickup truck and has it loaded! He forgets to close the tailgate before driving — the boxes fall out. Which law?”

✔ Answer: Law 1
Reasoning: The boxes were at rest relative to the truck. When the truck accelerates forward, the boxes tend to stay at rest (inertia) and fall out because no force (like a closed tailgate) is acting to keep them moving with the truck.

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Question 2:

> “Lisa’s family is moving to a new town… she fills her box completely with books. It’s too heavy to lift. Which law?”

✔ Answer: Law 1
Reasoning: The box full of books has a lot of mass → high inertia. It resists changes in motion (staying at rest). Without enough applied force, it won’t move — demonstrating inertia.

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Question 3:

> “Kicks a ball — it was a soccer ball, not quite as he expected — his foot is pretty bad. Which law?”

✔ Answer: Law 3
Reasoning: When he kicks the ball, his foot exerts a force on the ball — and the ball exerts an equal and opposite force back on his foot. That’s why his foot hurts — action-reaction pair.

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## 🔹 NEWTON’S SECOND LAW (F = ma)
> *Force equals mass times acceleration (F = m × a)*

Question 1:

> “A 1000 kg whale is dropped at a rate? Hit the ground?”
*(Assuming this means: What is the acceleration?)*

✔ Answer: 9.8 m/s²
Reasoning: All objects near Earth’s surface accelerate downward due to gravity at ~9.8 m/s² — regardless of mass (ignoring air resistance). So F = mg, but acceleration is always g.

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Question 2:

> “What is the rate of acceleration for a 5 kg object pushed with 100 N?”

✔ Answer: 20 m/s²
Formula:
a = F / m = 100 N / 5 kg = 20 m/s²

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Question 3:

> “A 10 kg computer accelerates at ? when 5 N applied.”

✔ Answer: 0.5 m/s²
a = F / m = 5 N / 10 kg = 0.5 m/s²

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Question 4:

> “A 2 kg water balloon flying at a rate? Pushed with 6 N.”

✔ Answer: 3 m/s²
a = 6 N / 2 kg = 3 m/s²

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Question 5:

> “Rate of acceleration for 5 kg pushed with 50 N?”

✔ Answer: 10 m/s²
a = 50 N / 5 kg = 10 m/s²

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Question 6:

> “500 kg motorcycle accelerates at ? when 1000 N applied.”

✔ Answer: 2 m/s²
a = 1000 N / 500 kg = 2 m/s²

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## 🔹 NEWTON’S THIRD LAW (Action-Reaction)
> *For every action, there is an equal and opposite reaction.*

Question:

> “Why does pushing down on the ground make you jump up?”

✔ Answer: Law 3
Reasoning: When you push down on the ground (action), the ground pushes back up on you with equal force (reaction), propelling you upward.

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## 🔹 OTHER QUESTIONS FROM THE WORKSHEET

Question: Student drops pencil on desk — why doesn’t it go through?

✔ Answer: Law 3
Reasoning: The pencil pushes down on the desk (action), and the desk pushes up on the pencil with equal force (reaction). This prevents it from falling through.

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Question: Semi-truck vs. compact car — same force, different acceleration?

✔ Answer: Law 2
Reasoning: F = ma → a = F/m. Same force, larger mass (semi-truck) → smaller acceleration. Smaller mass (compact car) → larger acceleration.

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Question: Baseball vs. bowling ball — same force, different accelerations?

✔ Answer: Law 2
Reasoning: Again, F = ma. Bowling ball has more mass → less acceleration. Baseball has less mass → more acceleration under same force.

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## ✔ SUMMARY TABLE

| Question | Answer (Law #) | Reason |
|----------|----------------|--------|
| Boxes fall out of truck | 1 | Inertia — boxes resist motion change |
| Heavy box won’t lift | 1 | High mass → high inertia |
| Kicked ball hurts foot | 3 | Action-reaction pair |
| Whale falls | 1 or 2 | Acceleration due to gravity (g) — technically Law 2 governs F=mg, but motion due to unbalanced force is Law 1 |
| 5kg + 100N → a | 2 | a = F/m = 20 m/s² |
| 10kg + 5N → a | 2 | a = 0.5 m/s² |
| 2kg + 6N → a | 2 | a = 3 m/s² |
| 5kg + 50N → a | 2 | a = 10 m/s² |
| 500kg + 1000N → a | 2 | a = 2 m/s² |
| Jumping off ground | 3 | Ground pushes you up as you push down |
| Pencil doesn’t go through desk | 3 | Desk exerts equal upward force |
| Semi vs. compact car acceleration | 2 | Same F, different m → different a |
| Baseball vs. bowling ball | 2 | Same F, different m → different a |

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## 🧠 BONUS EXPLANATION: Why These Laws Matter

- Law 1 (Inertia): Explains why seatbelts are needed — your body wants to keep moving forward during a crash.
- Law 2 (F=ma): Engineers use this to design cars, rockets, and even sports equipment.
- Law 3 (Action-Reaction): Explains how rockets work (push gas down → rocket goes up), how we walk, swim, etc.

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✔ You now have all the answers and explanations for the visible questions on this Newton’s Laws worksheet!

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