Impulse momentum

A boy kicks a ball with a force of 20 N, the time the force acts for is 0.15 s.
Calculate the impulse on the ball.

just number no units

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

What is the unit for momentum?

• m/sec
• kg/sec
• kg/m
• kg m/sec

Tags

NGSS.HS-PS2-2

If an object has a momentum of 15 kg m/s and a mass of 60 kg, what is it's velocity?

number no units

Tags

NGSS.HS-PS2-2

If an object has a velocity of 1.5 m/s and a momentum of 24 kg x m/s, what is its mass?

just number no units

Tags

NGSS.HS-PS2-2

What impulse is exerted by a 12,000 N rocket that launches across 1.2 seconds?

Just number no units

Tags

NGSS.HS-PS2-1

What is one way in which an impact force can be reduced?

• Increasing the change in velocity.

• Increase the mass.

• Decrease the impact time.

• Increase the impact time.

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

A 2 kg ball moving right at 9 m/s hits and wall and bounces straight back to the left at 3 m/s.

What is the change of velocity of the ball?

just number no units

Compare the momentum of a rocket moving at 100 m/s to the same rocket going 300 m/s.

• same momentum

• twice the momentum

• 3 times the momentum

• 4 times the momentum

• 5 times the momentum

Tags

NGSS.HS-PS2-2

The Air Forces F 22 Raptor has 2 afterburners each capable of producing 156,000 N of thrust for a total of 312,000 N of force. If each was turn on for 5 seconds what would the impulse be?

just number no units