Conservation Laws Practice

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

What is the formula for Kinetic Energy?

• KE = mass x velocity

• KE= 1/2 x mass x velocity ²

• KE = mass x gravity x height

• KE = mass x velocity / 2

Which form of energy is represented in this image?

• kinetic

• thermal

• potential

• radiant

The SI Unit for Energy is

• Joule

• Potential

• Calorie

• Kilojoule

The ability of a system to do work; required for changes to happen within a system

• Force

• Mass

• Energy

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

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

The impulse is _____the change in momentum

• Greater than

• Equal to

• Less than

• Always double

2 balls collide and bounce off of each other. During the collision total momentum remained constant and total kinetic energy remained constant. What type of collision is this?

• Inelastic Collision

• Elastic Collision

• Perfectly Inelastic Collision

• No collision occurred

A piece of silly putty is dropped onto a skateboard as it rolls by. The putty sticks to the skateboard and moves the direction the board is moving. What type of collision is this?

• Inelastic collision

• Elastic Collision

• Perfectly Inelastic collision

• No collision

Where is potential energy at its maximum?

• a

• b

• c

• d