Simple Machines Quiz

What is the fixed point on a lever called?

• The turny-thing

• The fulcrum

• The axle

How does a wheel-and-axle work?

• It uses a circular motion to increase force

• It stays still and doesn't move

• It makes the wheel fly off

What is a pulley?

• A wheel with a rope around it

• A machine that throws objects

• A flat ramp for sliding

How is a lever the same as a wheel-and-axle?

• Both make work harder

• Both help make work easier

Which part of the wheel-and-axle acts like the fulcrum of a lever?

• The wheel's edge

• The center of the wheel

• The rope around the wheel

How does a wheel-and-axle do work differently from a lever?

• The wheel-and-axle uses circular motion, while a lever moves up and down

• The wheel-and-axle is faster than a lever

• The wheel-and-axle doesn't need a fulcrum

What is an inclined plane?

• A flat surface tilted at an angle to help move things up or down

• A machine that turns in a circle to move objects

• A sharp tool used for cutting wood

What is a wedge?

• A flat piece of metal used to slide objects

• A tool that lets you move two things apart or split one thing into two

• A round surface that turns objects

How does a wedge work?

• It pushes things together with great force

• It uses sharp edges to push things apart or split them

• It moves things up and down without effort

What is a screw, and what is its function?

• A tool that makes holes in walls

• A machine that uses an inclined plane wrapped around a post to hold things together or move objects up

• A flat tool that spins like a wheel