General
what is work ?
This is a force that changes the motion of an object.
what is direction
You use a force to change the of an object.
What is ramp?
Another name for an inclined plane is a .
What is flagpole?
Here at school, you could see a pulley on a.
What is axle?
The wheel and axle is made up of two parts: the wheel that turns on a post, which is called the .
What is a machine?
a tool that makes work easier to do.
What is force?
The push or pull that turns a lever is the.
What is effort?
If you use an inclined plane, the distance is longer, but it takes less .
What is wheel?
The pulley uses a and rope to lift a load.
What is spiral?
You create a screw when you wrap on inclined plane into a around a pole
What is less?
Using a machine allows us to use force to move something.
What is fulcrum?
A lever is a board or bar that moves on a.
What is higher?
An inclined plane is a simple machine that is a flat surface that is at one end
What is a wedge?
Two inclined planes placed back to back make this simple machine.
What is less?
Using a screw takes force than pounding a nail.
What is few or no?
A simple machine is a machine with moving parts.
What is fulcrum?
The point where the lever turns is the.
What is flat surface?
The inclined plane is a simple machine that is a that is higher at one end.
What is split?
In a wedge, force is used to raise an object or the objects apart.
What is smaller?
In a wheel and axle, the wheel makes a large circular movement, and the axle makes a movement .
What is load?
The object being lifted is the load
What is force?
A lever can let you change direction of a force or it can change the amount of needed.
What are pyramids?
Scientists think inclined planes may have been used to build the because the blocks were too heavy to move straight up.
What is two-wheel?
A pulley makes work easier than a one-wheel pulley.
What is effort?
Just like an inclined plane, a screw moves a longer distance, but less is needed.