Momentum and Impulse

Newton's third law state that for every action there is a force that is

• equal in the same direction

• unequal in the same direction

• equal in the opposite direction

• unequal in the opposite direction

Check all that are true about action reaction forces.

• Both are always there, whenever any force appears

• they don't always have to have the same strength

• they always act in the opposite direction

• they always act on different objects

Tags

NGSS.MS-PS2-1

In the equation p = mv

• p=impulse

• p=force

• p=acceleration

• p=momentum

Tags

NGSS.HS-PS2-2

Check all that apply: Momentum involves

• speed

• direction

• mass

• force

Tags

NGSS.HS-PS2-2

The Law of conservation of momentum states that if interacting objects in a system are not acted on by outside forces, the total amount of momentum in the system

• can not change

• will change according to the mass

• can change only if the force remains constant

• can not change if there is acceleration

Tags

NGSS.HS-PS2-2

A car has a mass of 2500 kg, and is traveling at 30 m/s, what is its momentum?

• 83.3 kg x m/s

• 75,000 kg x m/s

• .01 kg x m/s

• 2500 kg x m/s

Tags

NGSS.HS-PS2-2

A 5.5 kg ball is rolling in a straight line towards you. If the momentum is 25 kg x m/s, how fast is the ball traveling?

• 137.5 m/s

• .22 m/s

• 5.5 m/s

• 4.5 m/s

Tags

NGSS.HS-PS2-2

a 6,000 kg truck is traveling in a straight line at 50 m/s. What is its momentum?

• 300,000 kg x m/s

• 120 kg x m/s

• .008 kg x m/s

• 3,000 kg x m/s

Tags

NGSS.HS-PS2-2

A pitcher throw a ball in a straight line with a momentum of 12 kg x m/s. the baseball weighs .17 kg. What is the velocity of the ball?

• 2.04 m/s

• .01 m/s

• 70.6 m/s

• 68 m/s

Tags

NGSS.HS-PS2-2

A 4,000 kg pick-up truck uses a braking force of 15,000 newtons (N) to stop in 6 seconds. What is the Impulse?

• Impulse = 3.75

• Impulse = 90,000

• Impulse = 24,000

• Impulse = 2,500

Tags

NGSS.HS-PS2-1