Vocabulary
A change in position
What is motion?
A simple machine made of a wheel with a groove that holds a rope
What is a pulley?
Where did energy come from?
Who is God?
A push or a pull is a _____.
What is force?
Rake
The weight of an object being moved by a simple machine
What is a load?
A wheel with a rod running through it
What is a wheel and axle?
The stored energy in an object
What is potential energy?
The force that pulls all objects toward the center of the earth
What is gravity?
Flagpole
What is a pulley?
When a force moves something over a distance
What is work?
A simple machine that is made up of one or more inclined planes and is used to force materials apart
What is a wedge?
The energy that an object has due to its motion
What is kinetic energy?
A force that resists the movement of objects against each other
What is friction?
Playground Slide
What is an inclined plane?
The ability to do work
What is energy?
An inclined plane wrapped around a cylinder
What is a screw?
What do you use when you do work?
True or false: Friction is a contact force
What is true?
Axe
What is a wedge?
The force applied to cause a simple machine to do work
What is effort?
What is a bar that turns on a point?
What is a lever?
Alec kicks the football. There is a collision between Alec's foot and the football. How is energy transferred during the collision?
The ball has potential energy before the kick. The hard kick transfers kinetic energy to the ball.
How long will an object at rest stay at rest?
Until a force causes it to change
Doorknob
What is a wheel and axle?