| Simple Machines | Waves | Energy | Review |
|---|---|---|---|
|
What is a simple machine?
A simple object changing the amount of force on an object.
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What are waves?
A disturbance that travels energy from place to place.
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What is energy?
The ability to do work or move
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What unit is kinetic energy measured in?
(J) Joules
|
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What are the six simple machines?
Pulley, Wheel and Axle, Wedge, Inclined plane and Lever
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What do mechanical waves travel through?
A medium
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What is Potential energy?
Stored energy
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A cooking knife is an example of what simple machine?
Wedge
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What is a third class lever?
Effort, Load, Fulcrum
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What are two types of mechanical waves?
Transversal and Longitudinal
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What is Kinetic energy?
The energy of motion
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An X-Ray is what type of wave?
Electromagnetic
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What is lever?
A simple machine made with a bar that pivots at the middle end and front.
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What is the measurement of crest to crest called?
Wavelength
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What are the grooved parts of a screw called?
Threads
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Where is the effort when pushing a load up an inclined plane?
At the bottom in front of the inclined plane.
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What are the parts of a wave called?
Crest, Trough, Amplitude, Wavelength
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What is a second class lever?
Effort, Load, Fulcrum
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