Momentum Worksheet for physics students, featuring true/false questions, fill-in-the-blank exercises, and a table to calculate momentum for different objects.

You’ve uploaded a Momentum Worksheet with True/False questions, fill-in-the-blank, and momentum calculations using the formula:

> p = mv
> where
> - p = momentum (kg·m/s)
> - m = mass (kg)
> - v = velocity (m/s)

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## ✔ TRUE OR FALSE — EXPLANATIONS

1. False — *Momentum is not equal to the mass of an object divided by its velocity.*

✔ Correct. Momentum is mass × velocity, not mass ÷ velocity. So this statement is false.

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2. True — *The momentum of an object can change.*

✔ Correct. Momentum changes if either mass or velocity changes (e.g., speeding up, slowing down, changing direction).

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3. False — *Two objects with the same mass will always have the same momentum.*

✘ Actually, this should be FALSE. The worksheet says “true”, but that’s incorrect.
➡️ Explanation: Momentum = mass × velocity. Two objects can have the same mass but different velocities → different momenta.
✔ Correction: This should be FALSE.

*(Note: If your teacher marked it “true,” they may have made an error — unless context implies same velocity too, which it doesn’t.)*

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4. False — *All moving objects don't have momentum.*

✔ Correct. Actually, all moving objects DO have momentum (as long as they have mass and velocity). So saying “don’t have” is false.

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5. True — *When an object speeds up, it gains momentum.*

✔ Correct. Since p = mv, increasing velocity increases momentum (if mass stays constant).

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6. False — *Objects with different masses can't have the same momentum.*

✘ Worksheet says “true”, but this is WRONG.
➡️ Explanation: A small mass with high velocity can have the same momentum as a large mass with low velocity. Example: Bullet vs. truck.
✔ Correction: This should be FALSE.

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7. False — *Direction does not matter when you are measuring momentum.*

✘ Worksheet says “true”, but this is WRONG.
➡️ Explanation: Momentum is a vector quantity — it has both magnitude AND direction. So direction matters!
✔ Correction: This should be FALSE.

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8. True — *Momentum can be transferred from one object to another.*

✔ Correct. In collisions, momentum is conserved and transferred between objects (Newton’s 3rd Law + Conservation of Momentum).

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9. False — *When objects collide, some momentum is lost.*

✘ Worksheet says “true”, but this is WRONG.
➡️ Explanation: In a closed system, momentum is always conserved — total momentum before = total after. Energy might be lost (as heat/sound), but not momentum.
✔ Correction: This should be FALSE.

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10. True — *A tiny bullet can have more momentum than a huge truck.*

✔ Correct. If the bullet is moving very fast (e.g., 600 m/s) and the truck is barely moving (e.g., 0.1 m/s), the bullet’s momentum (mv) could exceed the truck’s.
Example:
- Bullet: 0.004 kg × 600 m/s = 2.4 kg·m/s
- Truck: 2000 kg × 0.001 m/s = 2 kg·m/s → Bullet wins!

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## 📝 FILL IN THE BLANK

11. *A moving car has momentum. If it moves twice as fast, its momentum is ___ as much.*

✔ Answer: twice
➡️ Because p = mv → if v doubles, p doubles (if m constant).

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12. *Two cars, one twice as heavy as the other, move down a hill at the same speed. Compared to the lighter car, the momentum of the heavier car is ___ as much.*

✔ Answer: twice
➡️ p = mv → if m doubles and v is same, p doubles.

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## 🧮 MOMENTUM CALCULATIONS (p = mv)

Let’s verify each row:

| Object | Mass (kg) | Velocity (m/s) | Momentum (kg·m/s) | Calculation |
|---------------|-----------|----------------|-------------------|------------------------|
| 13. Bird | 0.04 | 19 | 0.76 | 0.04 × 19 = 0.76 ✔ |
| 14. Football player | 100 | 10 | 1000 | 100 × 10 = 1000 ✔ |
| 15. Skier | 60 | 20 | 1200 ✘ | 60 × 20 = 1200, not 120 → Error in worksheet! |
| 16. Bullet | 0.004 | 600 | 2.4 ✘ | 0.004 × 600 = 2.4, not 0.24 → Error! |
| 17. Frog | 0.9 | 12 | 10.8 ✘ | 0.9 × 12 = 10.8, not 0.108 → Error! |
| 18. Meteorite | 0.1 | 1000 | 100 ✘ | 0.1 × 1000 = 100, not 0.1000 → Error! |
| 19. Baseball | 0.14 | 30 | 4.2 | 0.14 × 30 = 4.2 ✔ |
| 20. Wagon | 2 | 3 | 6 | 2 × 3 = 6 ✔ |

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## 🔍 SUMMARY OF ERRORS IN WORKSHEET:

1. Q3 – Should be False (same mass ≠ same momentum without same velocity).
2. Q6 – Should be False (different masses CAN have same momentum).
3. Q7 – Should be False (direction DOES matter — momentum is vector).
4. Q9 – Should be False (momentum is conserved in collisions).
5. Q15, 16, 17, 18 – Momentum values are wrong (decimal errors).

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## ✔ FINAL CORRECTED ANSWERS:

True/False:

1. False
2. True
3. False ← correction
4. False
5. True
6. False ← correction
7. False ← correction
8. True
9. False ← correction
10. True

Fill in the blank:

11. twice
12. twice

Momentum Table Corrections:

- 15. Skier → 1200
- 16. Bullet → 2.4
- 17. Frog → 10.8
- 18. Meteorite → 100

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Let me know if you’d like a printable corrected version or explanations for students!