Change in Momentum

Pre- and post-collision information is shown. Identify the collision parameters that are consistent with the indicated change in momentum.

• F = 2 N, t = 14 s

• F = 28 N, t = 2 s

• F = 12 N, t = 4 s

• F = 10 N, t = 2 s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Pre- and post-collision information is shown. Identify the collision parameters that are consistent with the indicated change in momentum.

• F = 2 N, t = 14 s

• F = 4 N, t = 8 s

• F = 2 N, t = 12 s

• F = 4 N, t = 2 s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Pre- and post-collision information is shown. Identify the collision parameters that are consistent with the indicated change in momentum.

• Impulse = 8 kg m/s

• F = 4 N, t = 6 s

• change in momentum = 60 kg m/s

• F = 4 N, t = 2 s

Tags

NGSS.HS-PS2-2

When the speed of an object is doubled, its momentum...

• remains unchanged in accord with the conservation of momentum.

• quadruples.

• decreases.

• doubles.

Tags

NGSS.HS-PS2-2

Pre- and post-collision information is shown. Identify the collision parameters that are consistent with the indicated change in momentum.

• impulse = -4 kg m/s

• impulse = +4 kg m/s

• impulse = +8 kg m/s

• impulse = -8 kg m/s

Tags

NGSS.HS-PS2-2

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.

Calculate the impulse on the ball.

• 1 N·s

• 6 N·s

• None of these

• 66 N·s

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

When a car of mass 1000 kg moving at 20 m/s comes to a stop, what is the change in momentum?

• 0 kg·m/s

• 20000 kg·m/s

• -20000 kg·m/s

• 40000 kg·m/s

Tags

NGSS.HS-PS2-2

A 2 kg object moving at 3 m/s collides with a stationary 1 kg object. If the 2 kg object comes to rest after the collision, what is the velocity of the 1 kg object?

• 1 m/s

• 2 m/s

• 3 m/s

• 6 m/s

Tags

NGSS.HS-PS2-2

Which of the following best describes the principle of conservation of momentum?

• Momentum is always conserved in elastic collisions.

• Momentum is conserved only in inelastic collisions.

• Momentum is conserved in both elastic and inelastic collisions.

• Momentum is never conserved.

Tags

NGSS.HS-PS2-2