Vocabulary 1
Inclined Planes and Wedges
Screws and Levers
Wheels and Axles and Pulleys
Vocabulary 2
100
A device that does work with only one movement.
What is a simple machine?
100
Inclined planes help drag these up into trucks.
What are loads?
100
This is what is wrapped around a screw.
What is an inclined plane?
100
It is easier to do this to something instead of pushing it along. (Thanks, wheels and axles!)
What is roll?
100
An inclined plane wrapped in a spiral around a cylindrical post.
What is a screw?
200
A sloping surface used to raise objects.
What is an inclined plane?
200
This is an example of an inclined plane, and it helps handicapped people access buildings with steps.
What is a ramp?
200
There are this many classes of levers.
What is three?
200
This type of wheel and axle makes it possible for us to get into the room.
What is a doorknob?
200
A simple machine consisting of two wheels of different sizes that rotate together.
What is a wheel and axle?
300
An inclined plane with two or more sloping sides.
What is a wedge?
300
A wedge is anything with this type of edge.
What is a cutting edge?
300
This is what the distance from the fulcrum and resistance is called.
What is the resistance arm?
300
These are the two types of pulleys.
What are fixed and movable?
300
A grooved wheel with a rope or chain running through the groove.
What is a pulley?
400
The number of times a machine multiplies the effort force.
What is mechanical advantage?
400
Two inclined planes attached along here make a wedge.
What is their bases?
400
Name the three parts of a lever.
What are the fulcrum, resistance (load), and effort (force)?
400
This is what a fixed pulley is attached to.
What is a support?
400
A machine made up of two or more simple machines.
What is a compound machine?
500
The rate at which work is done.
What is power?
500
This tool, used for fishing, is an example of a wedge.
What is a hook?
500
A see-saw is this class of lever.
What is a first class lever?
500
This is what a movable pulley is attached to.
What is the object being moved? (also acceptable: load or resistance)
500
A measure of how well a machine operates.
What is efficiency?
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