Momentum, Impulse and Collisions

What is the momentum of a 70 kg runner, travelling at 10 m/s?

• 700 kg*m/s

• 70 kg*m/s

• 0.70 kg*m/s

• 7 kg*m/s

Tags

NGSS.HS-PS2-2

What is the momentum of an 800 kg car, travelling at 20 m/s?

• 16,000 kg*m/s

• 40 kg*m/s

• 0.025 kg*m/s

• 1,600 kg*m/s

Tags

NGSS.HS-PS2-2

What is the momentum of a 47 gram tennis ball that is travelling at 40 m/s?

• 18.8 kg*m/s

• 1.18 kg*m/s

• 1,880 kg*m/s

• 1.88 kg*m/s

Tags

NGSS.HS-PS2-2

What is the change in momentum of a 40 kg runner that travels from 5 m/s to 11 m/s?

• 200 kg*m/s

• 240 kg*m/s

• 440 kg*m/s

• 0 kg*m/s

Tags

NGSS.HS-PS2-2

A 0.350 kg mud blob, is thrown at a wall at 10 m/s. The blob sticks to the wall. What is the change in momentum for the mud?

• -3.5 kg*m/s

• 3.5 kg*m/s

• 0 kg*m/s

• 350 kg* m/s

Tags

NGSS.HS-PS2-2

The units for Impulse are

• N/s

• N·s

• N

• m/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

Tags

NGSS.HS-PS2-2

If 2 objects collide and stick together, what will happen to their velocities?

• velocities will increase
• velocities will decrease
• velocities will stay the same
• none of the above

Tags

NGSS.HS-PS2-2

Which object listed below has the greatest momentum?

• A 0.05 kg object rolling at 0.2 m/s.
• A 0.15 kg object rolling at 2 m/s.
• A 0.15 kg object rolling at 1 m/s
• A 0.4 kg object rolling at 2 m/s.

Tags

NGSS.HS-PS2-2

The purpose of air bags on a car is to

• decrease time of impact.
• increase force of impact.
• increase the time of impact.
• decrease the impulse during impact.

Tags

NGSS.HS-PS2-3