This pencil sharpener is a lever.
False
What simple machine is it?
lever
What is a simple machine?
Something that makes work easier. It has few or no moving parts
A doorknob uses a simple machine. What is it?
wheel-and-axle
What simple machine is it?
wheel-and-axle
What simple machine is it?
lever
The use of a force (can be push or pull) is known in science as ___________.
work
What simple machine is it?
Inclined plane
A seesaw uses a wheel-and-axle
False
What simple machine is it?
Pulley
Why do we use a wedge?
To cut some objects or make holes
What simple machine is it?
Pulley
A wheel-and-axle are connected so they turn together.
True
What simple machine is it?
wheel-and-axle
What simple machine is it?
lever
What is the name of the "fixed part" in a lever?
The fulcrum