Momentum and Acceleration

When two objects collide, the P_before is ____________ the P_after.

• more than 

• less than 

• equal to

• unrelated to

Tags

NGSS.HS-PS2-2

Before a car accident, two cars had a total momentum of 1500 kg m/s. After the collision, what is the total momentum?

• not enough information

• 1500 kg m/s

• 750 m/s

• 3000 m/s

Tags

NGSS.HS-PS2-2

Calculate the momentum of a 55-kg running back moving westward at 10 m/s.

• 550 kg·m/s, west

• 550 kg·m/s

• 550 m/s, west

• 550 kg, west

Tags

NGSS.HS-PS2-2

The equation to calculate momentum is

• p=mv

• p=1/2mv²

• p=mgh

• p=mg

Tags

NGSS.HS-PS2-2

Determine the momentum of 1000-kg car moving southward at 20 m/s......... 

• 20000 N

• 20000 Joules

• 20000 Kg * m/s south

• 10000 kg * m/s south

Tags

NGSS.HS-PS2-2

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.

• doubles

• quadruples

• decreases

Tags

NGSS.HS-PS2-2

Which of the following has the least amount of momentum?

• An ant walking along the ground

• An ant at rest

• An elephant walking

• An elephant running

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

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s

• 1 kg-m/s

• 10 kg-m/s

• 100 kg-m/s

Tags

NGSS.HS-PS2-2

Determine the momentum of 1000-kg car moving northward at 20 m/s......... 

• 20000 N

• 20000 Joules

• 20000 Kg * m/s

• 20000 kg * m/s north

Tags

NGSS.HS-PS2-2