IMPULSE MOMENTUM

1. Which of the following factors does NOT affect the force of impact on an object?

• a) Mass

• b) Velocity

• c) Color

• d) Time of Impact

2. If the mass of an object is doubled, and its velocity and impact time remain constant, the force of impact will:

• a) Decrease

• b) Increase

• c) Stay the same

• d) Be halved

3. Increasing the time of impact on an object will do what to the force of impact (assuming mass and change in velocity are constant)?

• a) Increase it

• b) Decrease it

• c) Not affect it

• d) Double it

4. Which of the following activities best demonstrates the relationship between impulse and momentum?

• a) Free fall of an object

• b) A car accelerating at a constant rate

• c) Catching a ball

• d) A ball rolling on a flat surface

5. What is the formula for impulse?

• a) p = mv

• b) K = 1/2 mv²

• c) F = ma

• d) I = Ft

6. Airbags in cars reduce injuries by:

• a) Decreasing the mass of the passengers

• b) Increasing the time of impact

• c) Decreasing the velocity of the car

• d) Increasing the force of impact

7. In the egg drop challenge, what did the cushioning materials do to protect the egg?

• a) Decreased the egg's mass

• b) Increased the egg's velocity

• c) Increased the time of impact

• d) Decreased the time of impact

8. Which of the following is an example of how the momentum-impulse principle is applied to prevent injuries?

• a) Wearing bright clothing

• b) Using padded sports equipment

• c) Drinking water

• d) Eating healthy foods

9. What does "t" represent in the impulse formula?

• a) Change in velocity

• b) Change in mass

• c) Time of impact

• d) Applied force

10. If the impulse acting on an object is zero, then the change in momentum of the object is:

• a) Maximum

• b) Minimum

• c) Zero

• d) Constant