Show:
General
Lever
Inclined Plane/Screw
Pulley/Wedge
Wheel and Axle/Rollers
100
This is a force that changes the motion of an object.
What is work?
100
The object being lifted is the __________.
What is load?
100
Another name for an inclined plane is a ____________.
What is ramp?
100
Here at school, you could see a pulley on a ______________.
What is flagpole?
100

The wheel and axle is made up of two parts: the wheel that turns on a post, which is called the __________.

What is axle?

200
You use a force to change the ________________ of an object.
What is direction?
200
The push or pull that turns a lever is the ____________.
What is force?
200

You create a screw when you wrap on inclined plane into a _______________ around a pole.

What is a spiral?

200
The pulley uses a ____________ and rope to lift a load.
What is wheel?
200

An example of how rollers were used in the past is ___________.

What is by the Egyptians to build the pyramids?


300
This is a tool that makes work easier to do.
What is a machine?
300
A lever is a board or bar that moves on a _______________.
What is fulcrum?
300
An inclined plane is a simple machine that is a flat surface that is ___________ at one end.
What is higher?
300
Two inclined planes placed back to back make this simple machine.
What is a wedge?
300
Using a screw takes ______________ force than pounding a nail.
What is less?
400
Using a machine allows us to use ____________ force to move something.
What is less?
400
The point where the lever turns is the _____________.
What is fulcrum?
400

The inclined plane is a simple machine that is a ___________________ that is higher at one end.

What is flat surface?

400
In a wedge, force is used to raise an object or _____________ the objects apart.
What is split?
400

If your wheels are attached to the axle, what do you add to your vehicle to make sure the wheels turn?

What is an axle holder?

500
A simple machine is a machine with _________________ moving parts.
What is few or no?
500
A lever can let you change direction of a force or it can change the amount of ______________ needed.
What is force?
500
Scientists think inclined planes may have been used to build the _______________ because the blocks were too heavy to move straight up.
What are pyramids?
500
A _________________ pulley makes work easier than a one-wheel pulley.
What is two-wheel?
500

This system uses more than one wheel (gear) to make a bicycle move.

What is a belt drive system?