Impulse and Momentum

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

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2

Which has more momentum, a large truck moving at 30 m/s or a small car moving at 30 m/s?

• The large truck

• The small car

• Both have the same momentum

Tags

NGSS.HS-PS2-2

When the speed of an object is doubled, its momentum

• Halves

• doubles

• triples

• Quadruples

Tags

NGSS.HS-PS2-2

A 4 kg cart has a momentum of 20 kg m/s. What is its velocity?

• 10 m/s

• 80 m/s

• 5 m/s

• 4 m/s

Tags

NGSS.HS-PS2-2

What changes momentum of an object?

• just force

• Impulse

• time of impact

• inertia

Tags

NGSS.HS-PS2-2

The purpose of crumple zones on a car is to

• decrease time of impact.

• increase the time of impact.

• increase force of impact.

• decrease the impulse during impact.

Tags

NGSS.HS-PS2-3

A club hits a golf ball with 1200 N of force and is in contact with it for 0.5 seconds. Find the impulse on the ball.

• 600 Ns

• 2400 Ns

• 800 N

• 400 N

True or False. The purpose of a safety cage placed at the midsection of most modern cars is to ensure the occupants of the car are safe in case of an accident.

• True

• False

Tags

NGSS.HS-ETS1-3

NGSS.HS-PS2-3

A force of 100 N is used to stop a baseball of mass 0.2 kg moving at a velocity of 90 m/s. How long will it take to bring the ball to a full stop?

• 10 sec

• 0.18 sec

• 18 sec

• 0.1 sec

Tags

NGSS.HS-PS2-1

A 50 kg ball rolls down the street at 100 kg-m/s. Calculate the speed of the ball. ....p=mv

• 0.5 m/s

• 500 m/s

• 2 m/s

• 5000 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2