Simple Machines
Machine that turns on an axle.
Wheel
What causes things to move?
Force
What are the names of the two magnet poles?
North and south poles
True or false? It is easy to change directions when moving fast.
False
What is the ability to do work?
Energy
A ramp is an example of this type of simple machine.
Inclined plane
Are you using push or pull to row a boat?
Pull
What is it called when a magnet pushes another magnet away?
Repel
How does friction change things?
It wears things down and makes things hot
What are the two types of energy that cars use?
Fuel and electricity
True or False? Machines use less effort to move large and heavy things.
True
The force that pulls things down to the earth.
Gravity
What are the two sides of a magnet called?
Poles
Does inertia or friction wear things down?
Friction
What are three natural types of energy?
Sun, wind, and water
Lifting machine that uses a wheel.
Pulley
The two types of force.
Push and pull
What three metals do magnets attract?
Iron, nickel, and cobalt
The force that works against motion, that helps you stop things from moving.
Friction
True or false? Sound has energy.
True
This the support between each side of a lever.
Fulcrum
Which falls to the ground faster, a brick or a crayon?
Neither, they hit the ground at the same time.
What mineral are magnets made from?
Magnetite
What causes things to keep moving?
Inertia
What gives humans energy?
Food