momentum

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

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

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball after the collision, the first ball stops.  What is the velocity of the second ball after the collision? 

• 5 m/s
• 2.5 m/s
• 10 m/s
• 7.5 m/s

Tags

NGSS.HS-PS2-2

A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. At what speed will the second boxcar move?

• 18.6 m/s
• 9.3 m/s
• 7.5 m/s
• 1.86 m/s

Tags

NGSS.HS-PS2-2

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

• more than 
• less than 
• equal to
• unrelated to

Tags

NGSS.HS-PS2-2

Which of the following has the greatest momentum? 

• a scurrying cockroach
• a parked semi-truck
• more information is needed

Tags

NGSS.HS-PS2-2

At what speed do the two blocks move after the collision?

• 2 m/s

• 5 m/s

• 10 m/s

Tags

NGSS.HS-PS2-2

How can a tennis ball and a bowling ball have the same momentum?

• have the same speed
• have different speeds
• one is moving backwards
• they can't

Tags

NGSS.HS-PS2-2

A conservation law states

• the total is always the same

• amount before = amount after

• what you start with, you end with

• all answers are correct

Tags

NGSS.HS-PS1-7

NGSS.HS-PS2-2

a constant in science would be

• speed on the interstate

• speed of light

• speed of snow falling

• class grade

Tags

NGSS.HS-PS4-3