General
When a force moves an object through a distance.
What is work?
The object being lifted is the __________.
What is the resistance?
Another name for an inclined plane is a ____________.
What is ramp?
A wheel with a rope around it is ______________.
What is pulley?
The wheel and axle is made up of two parts: the wheel that turns on a post, which is called the __________.
What is axle?
Work will change the ________________ of an object.
What is energy?
The push or pull is a ____________.
What is force?
If you use an inclined plane, the distance is longer, but it takes less _______________.
What is force?
The pulley uses a ____________ and rope to lift a load.
What is wheel?
You create a screw when you wrap on inclined plane around a __________.
What is a post?
This is a device that makes work easier.
What is a machine?
The pivot point on a lever is a _______________.
What is fulcrum?
An inclined plane is a simple machine that is a flat surface that is ___________ at one end.
What is higher?
Two inclined planes placed back to back make this simple machine.
What is a wedge?
A screw uses ______________ force than pounding a nail.
What is less?
The number of times a machine multiplies the force is the __________ ___________.
What is mechanical advantage?
A bar that pivots around a fulcrum is a _____________.
What is lever?
The inclined plane is used to ___________ an object.
What is raise?
A wedge does not multiply the force, but changes the __________.
What is direction?
In a wheel and axle, both part _______ at the same time.
What is rotate?
A simple machine is a machine with _________________ part doing the work.
What is one?
A lever can let you change direction of a force or it can change the _________ of the force.
What is direction?
Archeologists think inclined planes may have been used to build the _______________ because the blocks were too heavy to move without heavy equipment.
What are pyramids?
To calculate the mechanical advantage in a pulley system, count the supporting _______.
What are ropes?
Just like an inclined plane, a screw moves a longer distance, but less ____________ is needed.
What is effort?