General
This is a force that changes the motion of an object
work
The object being lifted is
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
Fulcurm
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 inclined planes may have been used to build the _______________ because the blocks were too heavy to move straight up
pyramids
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