Impulse Momentum

The difference between a car hitting a wall vs. a car hitting a hay stack is

• the Impulse on the car hitting the wall is greater

• the change in momentum of the car hitting the wall is greater

• the force on the car hitting the hay stack is greater

• the collision time of the car hitting the hay stack is greater

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Two identical cars are travelling along the freeway, one car is traveling faster. Which of the two cars would have a greater momentum?

• the slower car

• the faster car

• both have the same momentum

• cannot be easily determined

Tags

NGSS.HS-PS2-2

Amy Rose has a mass of 30 kg. If she was traveling at 50 m/s and slowed down to a stop, what change in momentum did she experience?

• 1500 kg m/s

• • -1500 kg m/s

• 1.7 kg m/s

• -1.7 kg m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A change in ​ (a)   is equal to an ​ (b)   .

• momentum

• impulse

• force

• velocity

Tags

NGSS.HS-PS2-2

Match the following term with the best definition or use.

• The inertia of motion.

• Δp

• The force during a collision.

• Impact Force

• FΔt = m Δv

• momentum

• m⋅Δv

• Impulse-Momentum Theorem

• t_imp

• The time through which an impact occurs.

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

What impulse is exerted by a 10,000 N rocket that launches across 1.2 seconds?

• 8,300 N s

• 12,000 N s

• 1,019 N s

• None of these.

Tags

NGSS.HS-PS2-1

What force is exerted on a crash test dummy if it experiences a change in velocity of -40 m/s over a time of 2 seconds. The dummy has a mass of 80 kg.

• 6,400 N

• 1,600 N

• • -1,600 N

• -6,400 N

Tags

NGSS.HS-PS2-1

Which factor is not involved in calculating the impulse of an object?

• Impact Force

• Mass

• Impact Time

• Two or more of these.

Impulse is DEFINED as:

• the net force applied

• the net force applied multiplied by the time over which the force is applied

• the change in momentum of the object

• the change in energy of the object

Tags

NGSS.HS-PS2-2

Δp is the symbol for

• velocity

• impulse

• momentum

• change in momentum

Tags

NGSS.HS-PS2-2