Work and Energy
Power
Efficiency
Potential & Kinetic Energy
Forms of Energy
100
It takes ___ to change the motion of an object
What is Force
100
Power measures how ___ work is performed
What is quickly
100
_____ can change the direction of a force, increase force, or increase speed.
What is Machines
100
Poential Energy is ___
What is stored energy
100
The energy stored in chemical bonds:
What is Chemical Energy
200
Energy is the ____ __ __ ____
What is Ability to do work
200
the ____ the period of time, the greater the power.
What is shorter
200
You alwayts put ___ ____ into a machine than you get out of a machine.
What is more work
200
Kinetic Energy is energy __ ____
What is In Motion
200
The energy of the motion of atoms of a substance:
What is Thermal Energy
300
Work is performed when a ____ ___ __ ____ through some distance
What is force moves an object
300
The ____ the power exerted on an object, the faster the change in motion of the object.
What is Greater
300
Efficiency is the ___ of output work to input work
What is Ratio
300
The object is not performing work, but is able to perform work. What kind of energy is this?
What is Potential Energy
300
The energy of electric and magnetic fields:
What is Electrical Energy
400
When an object moves, the ___ it moves can be measured
What is distance
400
The units of power are ___
What is Watts
400
Efficiency is measured as a ___
What is Percent
400
The formula is 1/2 (mass) (velocity)^2. What type of energy is this?
What is Kinetic Energy
400
The energy gained by an object when work is done on it:
What is Mechanical Energy
500
The units for work and energy are ____
What is Newton meters OR Joules
500
The formula for Power is ____
What is Power=work over time
500
Efficiency cannot match or exceed ___
What is 100%
500
The amount of energy is proportional to the ___ associated with acceleration due to gravity on the mass of an object and the height of the object.
What is Force
500
Electromagnetic radiation that travels in waves:
What is Radiant Energy
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