momentum and impulse - an introductory quiz

The momentum of an object depends upon the object's ___________&_____________.

• mass and energy

• mass and veloctiy

• mass and speed

• size and shape

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

• -2,5

• 45

• 10

• -18

The impulse-momentum theorem states that

• Athe impulse on an object is less than the change in momentum it causes

• the impulse on an object is greater than the change in momentum it causes 

• the impulse on an object is equal to the change in momentum it causes 

• the force on a moving object is equal to the magnitude of the impulse.

. A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s.  What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?

• 1 N

• 40 N

• 25 N

• 5 N

1.    Which has more momentum, a heavy truck moving at 30 m/s or a light truck moving at 30 m/s?

• Heavy truck                          

• light truck

• Both have same momentum

• Cannot be determined

8. A golf player hits the 0.02 kg golf ball, giving it a speed of 25 m/s. What is the impulse does he impart to the ball?

• 0.50 N.s

• 20.5 N.s

• 35 N.s

• 150 N.s

A 10kg toy truck moves at 5m/s East. It collides head-on with a 5kg toy car moving 10 m/s moving west. What is the total momentum of the system?

• 0 kgm/s
• 30 kgm/s
• 50 kgm/s
• 10 kgm/s

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s
• 375 m/s
• 25 kg m/s
• 375 kg m/s

The units for Impulse are

• kg

• N

• m/s

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds.  Which cart experiences the greatest impulse?

• Cart B
• Cart A
• they are the same