An object in _________ is changing its position.
motion
The ability to do work is called __________
Energy
How quickly an object moves is described by its __________
speed
a ramp is an example of an _____________
inclined plane
A straight bar that moves on a fixed point is a ___________
lever
A push or pull is called a _____________
force
A knife acts as a ___________ when cutting food.
wedge
You squeeze the hand brakes on a bike. The force that slows down the bike is _________
friction
A machine made up of two or more simple machines is a _____________________
compound machine
