Types of Energy
Transfer of Energy
Transfer of Energy 2
Energy Sources
Vocabulary
100
Energy of Motion
What is Kinetic Energy
100
Give me two types of energy that travel in waves? (Think EM and mechanical).
What is light energy and sound
100
You are an engineer designing a roller coaster. What two factors would you need to consider to calculate the PE and KE of the car?
What is MASS and VELOCITY/SPEED
100
Your heart pumping is an example of _____________ because it has both KE and PE at different times.
What is kinetic
100
An energy source that is replinished continually (not an example)
What is renewable resource
200
The type of Energy that depends on mass and position
What is potential energy
200
You throw a ball into the air. Explain the point where the ball would have the LEAST kinetic energy? (highest point, lowest point, etc)?
What is the highest point, because it would have max potential instead.
200
As the speed of a falling object increases, its potential energy will _____________________.
What is decrease
200
Hydroelectricity can generate electricity because of the initial _______________________ energy of the water.
What is potential
200
An energy source that is used up faster that is can be replaced. (not an example)
What is a nonrenewable resource
300
Type of energy that depends on the speed of molecules.
What is thermal or heat energy
300
Explain the transformation of a log that's burned starting with chemical energy. (two other conversions)
What is chemical -> Heat/thermal -> light
300
You bounce a basketball on the floor and it comes to a rest on its own. Why did it bounce lower each time and then finally stop? (Where did the energy go?)
What is energy was transferred to the floor.
300
Wind energy, coal energy, nuclear energy, ethonal energy, hydroelectric energy and solar energy all are used to make electricity. However, solar energy is different, what do all the other energy sources do that solar energy does not?
What is Turn a turbine that turns a generator to make electricity.
300
A device that transforms kinetic energy into electrical energy.
What is a turbine (generator)
400
Type of energy that depends on the flow of electrons
What is electrical energy
400
Your body changes chemical energy to mechanical energy so you can move. Explain why the mechanical energy to move would have to be LESS than the starting chemical energy.
What is its transformed to HEAT or other less useful types of energy.
400
When your car is started - gas is burned and changed to other forms of energy. As your engine is operating, what HAS TO REMAIN CONSTANT?
What is the Total amount of energy
400
Explain hydroelectric energy and give one advantage and one disadvantage.
What is hydroelectric energy is using the potential energy of water and turning it into electrical energy. One advantage is it does not pollute. One disadvantage is that it disrupts aquatic life.
400
State the Law of Conservation of Energy
What is Energy can not be created of destroyed it can only be transfered or tranformed.
500
Type of energy stored in bonds
What is Chemical energy
500
In a machine or device, what FORCE would make 100% efficiency impossible? (It uses/removes energy from a system).
What is friction. Machines always need a constant supply of energy because friction removes it.
500
When you drop a tennis ball, it hits the floor and bounces back up. But, it does not reach the same height as before and each time bounce is smaller than the previous one. However, you notice the tennis ball is slightly warmer after it finishes bouncing. Explain how the law of conservation of energy is obeyed.
What is During each bounce, some of the kinetic energy of the ball in transfered into thermal energy. As a result, energy is not created or destroyed, but only changes form so that the law of conservation of energy is obeyed.
500
Explain how nuclear energy is used to create electricity and give one advantage and one disadvantage.
What is Uranium atoms are split and heat is released to boil water. The boiling water creates steam. The steam turns a turbine and the turbine tunrs a generator, which makes a flow of electrons. One advantage is that is does not pollute the air. One disadvantage is that is makes radioactive waste.
500
Name Each type of energy and give an example.
Kinetic, Potential, Light, Heat, Chemical, Nuclear, and electrical
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