Change in Momentum and Impulse

What are the two factors that affect the momentum of an object?

• speed and velocity

• time and mass

• distance and displacement

• mass and velocity

Tags

NGSS.HS-PS2-2

Impulse is defined as the change in _____ of an object.

• momentum

• acceleration

• force

• velocity

Tags

P.6C

What is the equation for impulse?

• Impulse = Work / Time

• Impulse = Velocity / Time

• Impulse = Force x Time

• Impulse = Mass x Acceleration

Tags

P.6C

What is the equation for change in momentum?

• Change in momentum = Force / Time

• Change in momentum = Mass x Velocity

• Change in momentum = Final momentum - Initial momentum

• Change in momentum = Kinetic energy / Velocity

Tags

P.6C

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

• 33.3 N⋅s

Tags

P.6C

What is the relationship between impulse and change in momentum?

• Impulse is directly proportional to the change in momentum.

• Impulse is inversely proportional to the change in momentum.

• Impulse and change in momentum are unrelated.

• Impulse has no effect on the change in momentum.

Tags

P.6C

Which variable is impulse?

• J

• F

• m

• v

Tags

P.6C

A 4 kg ball is moving at 1 m/s. It then experiences an impulse of - 5 N-s.

What is the final velocity of the 4 kg ball?

• 1 m/s

• -1 m/s

• -0.25 m/s

• 0.25 m/s

Tags

P.6C

The impulse is ______ the change in momentum

• greater than
• equal to
• less than
• always double

Tags

P.6C

A 740 kg car traveling 19 m/s comes to a complete stop in 2.0 s. What is the magnitude of the force exerted on the

car during this stop?

• 85 N

• 850 N

• 7030 N

• 9250 N

Tags

P.6C