Momentum

Why is momentum considered to be a vector quantity?

• Momentum has to indicate both magnitude and direction.

• Momentum has to have a positive value.

• Momentum has to be calculated using speed.

• Momentum has a quantity but not a unit.

Which of the following is the formula for momentum?

• p = mv

• M = mv

• F = ma

• g = mc²

Tags

NGSS.HS-PS2-2

Which of the following is the unit for momentum?

• kg·m/s

• kg·m

• kg·m/s²

• Momentum has no unit.

Tags

NGSS.HS-PS2-2

A stationary object has a small amount of momentum.

• True

• False

Tags

NGSS.HS-PS2-2

The momentum of an object is related to the object's mass and velocity.

• True

• False

Tags

NGSS.HS-PS2-2

In a(n) ______________, an object experiences a force for a given amount of time that results in a momentum change.

• collision

• acceleration

• free fall

• adhesion

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Which of the following quantities IS NOT involved in the study of collisions?

• friction

• force

• time

• mass

• velocity

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Which of the following is the formula for impulse?

• FΔT

• ma

• mv

• mc²

Which of the following is a complete description of the momentum of an object?

• 6.7 kg·m/s, east

• 8.9 kg·m/s

• 1.5 kg/s, west

• 3.47 m/s², north

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