Types of Energy
Energy Transformations
Energy Transformations 2
Energy Sources
Vocabulary
100
Energy of Motion
What is Kinetic Energy
100
Explain the transformation that takes place in a microwave.
What is electrical energy to radiant energy to thermal energy
100
As the mass of an object moving at a given speed decreases its kinetic energy will ______________________.
What is decrease
100
Wind turbines convert _________________ energy into eletrical energy.
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
Explain the transformation that takes place when you turn on a flashlight. From the battery to the light. 4 steps
What is Chemical (of the battery) to electrical (flow of elctrons) to radient (of the light) to thermal ( the heat produced by the light)
200
As the speed of a falling object increases, its potential energy will _____________________.
What is decrease
200
The majority of the electricity produced in the US is produced in _________ _________ power plants.
What is fossil fuel
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 is often lost during energy transformation.
What is thermal or heat energy
300
Explain the transformation of a book falling from table. Explain the type of energy and where it comes from. 3 steps
What is Potential ( due to the position of the book) to kinetic ( motion of the book)
300
When you drop a book on the floor, what happens to its original potential energy?
What is the potential energy was transfered to kinetic
300
Wind energy, coal energy, nuclear energy, hydroelectric energy and solar energy are similar in what way?
What is they are all used to generate 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
Explain the transformation of energy that occurs in a coal burning power plant. List the type of energy and where it comes from. 5 steps
What is Chemical (coal) to thermal (heat released from breaking the bonds of coal to boil water)to mechanical energy ( the steam makes) to kinetic (turbine move) to electrical (the turbine is conected to a generator that make a flow of electrons)
400
A basketball is dropped from a height of 2m and another identical basketball is dropped from a height of 4m. Which ball has more kinetic energy just before it hits the ground?
What is The basketball dropped from a height of 4m because it has more speed.
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 or destroyed it can only be transfered or tranformed.
500
Type of energy stored in bonds
What is Chemical energy
500
Explain the transformation that takes place to make a toaster work using a wind turbine.
What is mechanical energy (of the wind) to kineitc energy (the blades to spinning) to electrical ( the turbine turns a generator and makes a flow of electons) to thermal ( heat from the toster) to radiant ( when the toaster get hot enough it will emmit light)
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 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 is 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
How are fossil fuels used to generate electricity?
What is coal is burned to produce steam. The steam turns the turbine which turns the generator to produce electricity
500
Coal, oil, natural gas, uranium
What are fossil fuels
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