WORK
POWER
ENERGY
SIMPLE MACHINES
EFFICIENCY
100
The formula for work
What value is force times distance equal to?
100
The watt (W)
What is the abbreviation for Power?
100
PE
What is Potential Energy?
100
Energy is natures way of keeping this
What is score?
100
The formula for efficiency
What is Output/Input time 100
200
Newton-meter (N*m) is another way to record this value
What is a Joule?
200
The equation for Power
What is work/time?
200
KE
What is Kinetic Energy?
200
According to the conservation of energy, the total amount of energy never does this
What is changes?
200
The measure of work done for energy spent
What is efficiency?
300
This prefix is worth 1000 joules
What is a Kilojoule?
300
He invented the steam engine, named the unit of power after him.
Who is James Watt?
300
Defined as energy of motion
What is Kinetic Energy?
300
Devices for multiplying forces or simple changing direction of forces
What is a machine?
300
40 Joules of work is put out when 100 Joules of work is input.
What is 40 % efficiency?
400
In order for work to occur, force and distance must go in the same_____________
What is direction?
400
The amount of Power produced from 2 J of work over a 4 second time period.
What is 0.5 Watts?
400
Mechanical Energy
What is both Potential and Kinetic Energy?
400
A lever is considered one
What is a simple machine?
400
All energy comes from here except nuclear energy
What is the sun?
500
Work is done when you lift against this
What is gravity?
500
A 2 N object moves 4 m in 4 seconds. The Power produced.
What is 2 Watts? (2N * 4m/ 4 s)
500
Law of Conservation of Energy
What is energy is not created or destroyed but can be transformed?
500
The support for a lever
What is a fulcrum?
500
The lower the efficiency, the greater amount of energy wast5ed as this
What is heat?
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