momentum and impulse

Most modern vehicles have padded dashboards. This reduces collision injuries by...

• reducing the driver's change in momentum
• increasing the driver's change in momentum
• increasing the force of impact
• increasing the time of impact

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

The recoil speed of a rifle is much less than the exit velocity of a bullet because...

• the rifle experiences a smaller force
• the rifle experiences a smaller change in momentum
• the rifle has a much greater mass
• the rifle does not obey the laws of physics

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 

• 55 kg*m/s
• 100 kg*m/s
• 250 kg*m/s
• 500 kg*m/s

Tags

NGSS.HS-PS2-2

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

• Skater 1 experiences a greater change in momentum

• Skater 2 experiences a greater change in momentum

• Skater 1 has a greater speed than Skater 2

• Skater 1 experiences a greater force

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1

What happens to the speed of the wagon as the rain collects inside of it?

• it decreases
• it remains constant
• it increases

Tags

NGSS.HS-PS2-1

A block sliding on a frictionless surface runs into a second block of equal mass at rest. After the two collide, they stick together and travel with a velocity...

• that is twice the magnitude of the original velocity
• that is half the magnitude of the original velocity
• more information is needed

Tags

NGSS.HS-PS2-2

Parkour Peter bends his knees upon landing in order to ____

• reduce his weight

• increase his mass

• increase his landing time

• increase his landing force

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

Tags

NGSS.HS-PS2-2

The definition of momentum is

• Mass in Motion
• The size of an object
• The velocity of an object
• A comparison between two objects

Tags

NGSS.HS-PS2-2

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Tags

NGSS.HS-PS2-2