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Energy, Work, Power and Simple Machines REVIEW

Teacher: Mrs. Dallimore
Across
Unit of Work
Unit of time
The transfer of a force over a distance in the same direction
Unit of distance
If you exert a force of 500N to walk 2m up a flight of stairs in 4s, how much power do you use?
A stone resting on the edge of a cliff has no _____.
Energy cannot be created nor destroyed, but may be converted into another form.
Heat transfer through touching is called ____.
Dependent upon height, stretch or compression of an object
An ax is an example of a(an) ____.
The number of times a machine increases the input force
The advantage a machine could provide in a perfect world, depends on position of the machine's parts
Down
9.8m/s/s
If given Time and Power, how do you calculate Work?
Unit of Force
If given distance and Work, how do you calculate Force?
If given Force and Work, how do you calculate distance?
Unit of Power
A device that changes either the magnitude or direction of an applied force
F = mg
The rate of work done
Unit of mass
The advantage a machine provides when used in the real world, depends on forces involved in the use of the machine