Inclined Planes & Wheel and Axle
Force
Energy
Machine
Misc.
100
This doesn't even look like a machine! This makes it easier to slide a load upward than to lift it directly.
What is an inclined plane?
100
A push or a pull.
What is force?
100
The ability to do work; anything that does work uses this.
What is energy?
100
Any tool that makes work easier.
What is a machine?
100
The results of a force; the results after you push or pull.
What is work?
200
This can lift heavy weights for us with only a little effort on our part. Example: Fishing pole.
What is wheel and axle?
200
Gravity and Friction.
What are the two different kinds of force?
200
Energy of motion.
What is kinetic energy?
200
A machine made of only one or two parts. Example: Lever, Wedge, Pulley
What is a simple machine?
200
A moving object stays in motion while a still object stays still.
What is inertia?
300
This can be used to lift a heavy load over a short distance, or to split a log.
What is a wedge?
300
A force that pulls any two objects together. Example: Pulls objects on the earth toward its center.
What is gravity?
300
Stored energy.
What is potential energy?
300
A machine of two or more simple machines. Example: Pencil sharpener
What is compound machine?
300
A small amount of work is done for the energy used.
What is low efficiency?
400
It's a form of wheel and axle. It changes the direction of the force.
What is a pulley?
400
A force that slows the motion of moving object.
What is friction?
400
The energy an object gets from its motion Example: winding up the propeller on a toy plane.
What is mechanical energy?
400
A machine made of many simple and compound machines. Example: Race car.
What is a complex machine?
400
A lot of work is done for the energy used.
What is high efficiency?
500
It's main purpose is to raise a load over the threads by applying a small force. This is wrapped around a cylinder or a cone.
What is a screw?
500
Rough surfaces, such as sandpaper, and more weight.
What is friction caused by?
500
Energy that results from a kind of change. Example: Gasoline stores ___ energy to run a car.
What is chemical energy?
500
It's one of the earliest machines that help lift weights with less effort.
What is a lever?
500
Amount of work a machine does compared to the amount of energy put into using the machine.
What is efficiency?
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