Show:
General
Lever
Inclined Plane
Pulley/Wedge
Wheel and Axle/Screw
100

This is a force that changes the motion of an object.

What is unbalanced forces?

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 effort force?

200

If you use an inclined plane, the distance is longer, but it requires less _______________.

What is effort force?

200
The pulley uses a ____________ and rope to lift a load.
What is wheel?
200
You create a screw when you wrap on inclined plane into a _______________ around a pole.
What is spiral?
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/pivots on a _______________.

What is fulcrum?

300

An inclined plane is a simple machine made up of 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 formula to find the ideal mechanical advantage of a lever.

What is effort length divided by resistance length?

400

True or false: An inclined plane allows you to do less work.

What is False?

400

A wedge that is ________ and ________ provides a greater mechanical advantage.

What is longer and thinner/narrower?

400
In a wheel and axle, the wheel makes a large circular movement, and the axle makes a ____________ movement.
What is smaller?
500

List the simple machines found in the inclined plane family.

What is an inclined plane, wedge, and screw?

500
You can raise the mechanical advantage of a 1st class lever by ______________.

What is moving the fulcrum closer to the load?

500

Which inclined plane offers a greater mechanical advantage, one with a height of 1 m and a length of 10 m, or one with a height of 2 m and a length of 15 m?

What is a height of 1 m and a length of 10 m?

500
A _________________ pulley makes work easier than a one-wheel pulley.
What is two-wheel?
500
Just like an inclined plane, a screw moves a longer distance, but less ____________ is needed.
What is effort?