Work
Energy Types
Potential / Kinetic
MATH and SCIENCE
Fossil Fuel / Power
100
True or False Work is force and motion moving some object a distance in the same direction.
True
100
Energy stored in the nucleus of an atom is ________ energy
Nuclear
100
Potential energy is energy that is _________ energy. Give one example of potential energy.
Stored and ready for use
100
Work is defined by the formula and units . . . . . Create the formula and determine work: Force = 10 newtons (N) Distance = 20 meters (M)
Work (J) = Force (N) x Distance (D) Work (J) = 200 j
100
Fossil fuels are examples of what specific type of energy?
Chemical Energy
200
When you exert a force on an object that causes the object to move in the same direction as the force you are performing ________ on the object.
Work
200
What type of energy does a spinning turbine create when attached to a generator?
Electrical Energy
200
Kinetic energy is know as energy of __________.
Motion
200
Recall the formula for determining the speed of an object. An object moves a distance of 200 meter in 20 seconds. What is the speed of the object?
Speed (meters/second) = Distance (meters) / Time (seconds) 10 meters/second = speed of the moving object
200
When fossil fuels burn what three (3) types of energy are formed?
mechanical, thermal and chemical
300
How can you determine if work is being done on a basketball? A. The basketball moves in the same direction as the force. B. The basketball moves in the opposite direction as the force.
A. The basketball moves in the same direction as the force.
300
Total energy of all particles in a substance or an object is know as ________ energy.
Thermal
300
What type of energy does a spinning turbine have?
Mechanical Energy
300
Calculate the Kinetic Energy of a 30 kg object moving at a velocity of 100 meters/second North.
150,000 kg/m2/s2
300
Power is defined as ____________
The rate or speed at which energy is transferred from one form to another form.
400
The ability to do _______ or cause change is energy.
Work
400
Electromagnetic energy is visible _________ energy that moves in ________.
Electromagnetic energy is visible light energy that moves in waves.
400
What type of energy is stored in fossil fuels such as coal and oil?
Chemical Potential Energy or chemical energy
400
Power = Work /Time If an object has a force of 4 (N) and moves a distance of 3 (M) over 30 seconds calculate the power.
Work (J) = 4 N x 3 m= 12j Time (s) = 30 seconds 12j / 30 seconds 0.4 watts
400
Fossil fuels have chemical energy which during combustion (burning) is covered to _______ energy which is used to create ________ to move turbines which generate ________.
thermal steam electricity
500
Calculate work when a force of 5 (N) is applied to a boulder causing the boulder to move 15 (M). Make sure to use the correct units in your answer.
5 N x 15 m = 75 j
500
True or False During combustion a substances electromagnetic energy is converted to thermal energy. Explain your answer whether
False ---- Chemical energy converted to thermal energy and we see the electromagnetic energy released in the form of visible light!
500
Water at the top of Niagara Falls has high _________ energy and while falling to the river below has high ________ energy.
High potential energy and when falling high kinetic energy
500
Calculate the gravitational potential energy of a 1000 kg boulder perched on top of a 30 meter cliff. GPE = mass x height
1000 kg x 30 m = 30,000 j
500
What is the definition of The Law of Conservation?
When one form of energy is transferred into another form of energy, energy is neither created nor destroyed.
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