Definitions 1
Definitions 2
Mechanical Advantage
Key Concepts
Simple Machines
100
A combination of two or more simple machines.
What is a compound machine?
100
A wedge is another form of it.
What is an inclined plane?
100
The IMA of an inclined plane that is 2.1m long and .7m high.
What is 3.
100
Energy transferred when this is done.
What is work?
100
This part usually exerts the output force in a wheel and axle.
What is the axle?
200
The ratio of the output force to the input force of a machine.
What is mechanical advantage?
200
The force exerted by a machine.
What is output force or resistance force?
200
The IMA of a screwdriver with a shaft radius of 3mm and a handle radius of 10mm.
What is 30?
200
In an ideal machine, work input is _______ to work output.
What is "equal to?"
200
a grooved wheel with a robe, chain, or cable in the groove.
What is a pulley?
300
The rate at which work is done or energy is transferred.
What is power?
300
Something that changes the size or direction of a force used in doing work.
What is a machine?
300
This is a way to increase the IMA of an inclined plane.
What is "increasing its length."
300
a bicycle is an example of this.
What is a compound machine?
300
the force that must be overcome by a lever.
What is resistance force.
400
The amount of work you get out of a machine compared to the work that was put into the machine.
What is efficiency?
400
It is the part on the lever that doesn't move as the lever is being used.
What is a fulcrum?
400
The mechanical advantage of this type of lever is always greater than one.
What is a "second-class lever?"
400
All simple machines are made of or branch from these two simple machines.
What are levers and inclined planes?
400
the effort force is between the resistance force and the fulcrum in this type of lever.
What is a third-class lever?
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