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