Type of Energy
Energy Transformation
Energy Transformation 2
Vocabulary
More Energy
100
Energy of Motion
What is mechanical energy
100
Explain the transformation that takes place when you rub your hands together. START FROM THE SUN (5 steps)
What is light energy( from the sun) to chemical energy (plants make sugar) to chemical (stored in food) to mechanical (movement of the hands) to thermal (heat produced from friction)
100
As the mass of an object moving at a given speed decreases its kinetic energy will ______________________.
What is decrease
100
An energy source that is replinished continually (not an example)
What is renewable resource
100
Energy formed when an atom splits apart or when two atoms join to form one.
What is nuclear energy?
200
The type of Energy that depends on mass and height
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 electrons) to radiant (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
An energy source that is used up faster that is can be replaced. (not an example)
What is a nonrenewable resource
200
Energy from objects vibrating.
What is Heat or Thermal energy
300
Type of energy that depends on the speed of the object.
What is Kinetic Energy
300
Wind turbines convert _________________ energy into electrical energy.
What is mechanical
300
When you drop a book on the floor, what happens to its original potential energy?
What is the potential energy was transformed to kinetic
300
A device that transforms mechanical energy into electrical energy.
What is a generator
300
This is an example of electrical energy being changed to radiant energy.
What is lamp
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 enrgy 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 ( the steam makes) to mechanical (turbine move) to electrical (the turbine is connected 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
State the Law of Conservation of Energy
What is Energy can not be created of destroyed it can only be transformed.
400
This is a type of energy that travels in waves and can travel through empty space.
What is light energy
500
Type of energy stored in bonds of molecules
What is Chemical Energy
500
Explain the transformation that takes place to make a toaster work using a wind turbine. Begin with the sun. (6 steps)
What is thermal energy (from the sun) to mechanical energy (of the wind) to mechanical energy (the blades to spinning) to electrical ( the turbine turns a generator and makes a flow of electrons) to thermal ( heat from the toaster) to radiant ( when the toaster get hot enough it will emit 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 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 transferred 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
Name Each type of energy and give an example
Light, Heat, Chemical, Nuclear, electrical, mechanical
500
As a roller coaster car goes down a hill, its potential energy ________________ and its kinetic energy _______________.
What is decrease and increase
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