Explain the energy transformation that takes place when a plant grows.
What is light energy (from the sun) to chemical energy (plants make sugar) ?
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 electrical 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 battery powered flashlight.
What is Chemical (of the battery) to Electrical (flow of electrons) to Radiant (of the light) & some Thermal (heat produced by the light)
200
Does a skateboarder have more potential energy at the top of the hill or the bottom?
What is top
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 book falling from table. Explain the type of energy and where it comes from.
What is Potential (due to the position of the book) to kinetic ( motion of the book) to thermal ( the friction between the book and the air)
300
When you drop a book on the floor, what happens to its original potential energy?
What is: the potential energy is transferred to Kinetic Energy (and some thermal energy)
300
Wind energy, coal energy, nuclear energy, hydroelectric energy and solar energy all are used to make electricity. However, solar energy is different.
What do all the other energy sources use to generate electricity that solar energy does not?
What is: Turn a turbine that turns a generator
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
The transformation of energy that occurs in a coal burning power plant =
Chemical (burn coal) to Thermal (heat water to steam) to _____________ (steam spins the turbine) to Electric (generator spins to create flow of electrons)
What is Kinetic Energy?
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
Hydroelectric energy is using the potential energy of water and turning it into electrical energy.
What is one disadvantage?
What is:
Hydroelectric 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
Explain the transformation that takes place when using a toaster.
Electrical Energy is converted to ____________
What is Thermal Energy?
500
When you drop a tennis ball, it hits the floor and bounces back up. But, each bounce is smaller than the previous one. However, you notice the tennis ball is slightly warmer after it finishes bouncing.
This is due to what law?
What is: the law of conservation of energy
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