IG Phy – Momentum
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Question 1 of 15
1. Question
1 point(s)All moving objects will have momentum.
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Question 2 of 15
2. Question
1 point(s)A speck of dust can have the same momentum as a car.
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Question 3 of 15
3. Question
1 point(s)The unit of momentum is kg/m/s.
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Question 4 of 15
4. Question
1 point(s)Momentum is a scalar quantity.
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Question 5 of 15
5. Question
1 point(s)A change in the direction of travel does not affect momentum.
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Question 6 of 15
6. Question
1 point(s)When a force acts on an object, its momentum changes.
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Question 7 of 15
7. Question
1 point(s)The resultant force acting on an object is defined as the change in momentum per unit time.
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Question 8 of 15
8. Question
1 point(s)The impulse of a force is defined as the product of the force and the change in time.
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Question 9 of 15
9. Question
1 point(s)Impulse has the units kg·m/s.
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Question 10 of 15
10. Question
1 point(s)If the momentum of a car changes by 4000 kg·m/s, the impulse of the force acting on the car must be 4000 N·s.
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Question 11 of 15
11. Question
1 point(s)A 1000 kg car accelerating from rest to 6.0 m/s in 2.0 seconds experiences a force of 3000 N.
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Question 12 of 15
12. Question
1 point(s)For a given force, the longer the force acts, the smaller the change in momentum.
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Question 13 of 15
13. Question
1 point(s)The total momentum before a collision is the same as the total momentum after the collision.
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Question 14 of 15
14. Question
1 point(s)Seat belts are designed to hold the person in place too strongly during a crash.
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Question 15 of 15
15. Question
1 point(s)In any collision, the total momentum of the system is conserved if no external forces act on it.
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