Forces and Momentum Test

What is required for something to be considered a vector? (select all that apply)

• Speed

• Distance

• Magnitude

• Displacement

• Direction

Which of the following are vectors? (Select all that apply)

• Displacement

• Speed

• Acceleration

• Force

• Momentum

Tags

NGSS.HS-PS2-2

An object's momentum is dependendent upon the object's ___________&_____________.

• size and shape

• mass and speed

• velocity and mass

• mass and acceleration

Tags

NGSS.HS-PS2-2

The momentum equation is

• p=mv

• p=1/2mv²

• p=mgh

• p=mg

Tags

NGSS.HS-PS2-2

Determine the momentum of 4500-kg car moving southward at 20 m/s

• 9,000 N

• 225 kg*m/s south

• 90,000 kg*m/s south

• 9,000 kg*m/s south

Tags

NGSS.HS-PS2-2

A 4,000 g cart has a momentum of 20 kg*m/s. What is its velocity?

• 0.005 m/s

• 80 m/s

• 5.0 m/s

• 8000 m/s

Tags

NGSS.HS-PS2-2

A 8700 kg railroad car traveling at a velocity of 7 m/s strikes a second boxcar that weighs 2500 kg at rest. At what speed will the second boxcar move?

• 18.6 m/s

• 24.4 m/s

• 3.5 m/s

• 9.3 m/s

Tags

NGSS.HS-PS2-2

A 30 g bullet is fired from a gun with a speed of 350 m/s. If the gun has a mass of 0.8 kg, What is the recoil speed of the gun?

• 11.7 m/s

• 13.1 m/s

• 10.5 m/s

• 1.29 x 10⁴ m/s

Tags

NGSS.HS-PS2-2

When the velocity of an object is doubled and its mass is cut in half, its momentum

• decreases by a factor of 4 (x1/4)

• doubles (x2)

• quadruples (x4)

• remains the same

Tags

NGSS.HS-PS2-2

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

• have equal velocity

• have unequal velocity

• one is moving in the negative direction

• they can't because they have different masses

Tags

NGSS.HS-PS2-2