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Types of Energy
Energy Transfer/ Transformation
Energy in Action
Work and energy
Vocabulary
100
Energy of Motion
What is Kinetic Energy?
100
You stand near a fire. You get warm due to this type of energy transfer.
What is radiation?
100
As the mass of an object moving at a given speed decreases its kinetic energy will ______________________.
What is decrease?
100
What is work?
Work is the transfer of energy that occurs when a force makes an object move in the direction of the force while the force is acting on the object.
100
An energy source that is replenished continually (not an example)
What is renewable resource
200
The type of Energy that depends on mass and position
What is potential energy?
200
How does kinetic energy change as you quickly walk to your class and then sit at your desk?
What is As you quickly walk, motion and kinetic energy increase; both decrease when you sit down.
200
As the speed of a falling object increases, its potential energy will _____________________.
What is decrease?
200
How is energy related to work?
What is Work is the transfer of energy that occurs when a force causes an object to move. For example, a student standing on the top of a flight of stairs has potential energy because work was done to move up the stairs.
200
What is energy
What is the ability to cause change.
300
Type of energy that depends on the speed of molecules.
What is thermal (heat) energy?
300
When you drop a book on the floor, what happens to its original potential energy?
What is the potential energy was transferred to kinetic and thermal energy?
300
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.
300
Does a person work when he or she lifts a box?
What is Yes, work is done when lifting a box because the object is moving in the direction of the force.
300
A pot on a stove gets hot due to this type of heat transfer.
What is conduction?
400
Type of energy that depends on the flow of electrons
What is electrical energy?
400
Water boiling in a pan heats up due to this type of energy transfer.
What is convection?
400
How are mechanical energy and sound energy different?
Mechanical energy is related to objects; sound energy is related to sound waves
400
Does a person work when he or she holds a box in the air? Explain.
What is No, by holding the box there is no change in the position of the box.
400
State the Law of Conservation of Energy
What is Energy can not be created of destroyed it can only be transferred or transformed.
500
Type of energy stored in bonds
What is chemical energy?
500
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)
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
A hot object is put in contact with a cold object. Describe what will happen to the two objects over the next 12 hours.
What is heat will transfer from the hot to the cold until they are the same temperature?
500
Name Each type of energy and give an example.
What is Kinetic, Potential, Light, Heat, Chemical, Nuclear, and electrical