Momentum and Law of conservation of momentum

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Tags

NGSS.HS-PS2-2

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

• size and shape
• Mass and weight
• mass and veloctiy

Tags

NGSS.HS-PS2-2

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car
• bike
• they are equal
• cannot determine using the info provided

Tags

NGSS.HS-PS2-2

An object with a mass of 2000 kg at rest has what momentum?

• 2000 kg m/sec
• 0 kg m/sec
• 2000 kg
• 2000 m/sec

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

Momentum is conserved in this type of collision

• elastic
• inelastic
• momentum is conserved in both types of collisions

Tags

NGSS.HS-PS2-2

A 0.250 kg cart moving at 0.500 m/s has how much momentum?

• 0.5 kg*m/s
• .125 kg*m/s
• 12.5 kg*m/s
• 10 kg*m/s

Tags

NGSS.HS-PS2-2

What could you do to improve your egg safety device design?

• Reduce the impact time
• Extend the impact time
• Increase the amount of force the device hits the ground with
• Absolutely nothing. The egg was predestined to crash. 

Tags

NGSS.HS-ETS1-3

NGSS.HS-PS2-3

Which object has the greatest momentum?

• An 18-wheeler tractor trailer at rest.
• An average mass person walking.
• A sports car driving on the highway.

Tags

NGSS.HS-PS2-2

A toy car of a mass of 3 kg moves along a frictionless railroad track with a velocity of 4 m/s. What is the momentum of the toy car?

• 0.75 kg m/s
• 0.75 N
• 12 kg m/s
• 12 N

Tags

NGSS.HS-PS2-2