Energy
Explain energy in your own words.
The ability to do work.
In your own words explain the difference between potential and kinetic energy.
Kinetic energy is energy of a moving object.
In your own words what is a collision?
A collision is a moment when two things bump or crash into each other forcefully.
Look at our twist-o-meter, show me where the potential energy is.
When will we see the kinetic energy?
Potential energy is in the rubber band.
The kinetic energy can be seen when we let the rubber band go and the twist-o-meter spins.
What are the two types of energy?
Potential and kinetic energy.
Potential Energy because the energy is stored in the food.
What happens to the energy when objects collide?
What do you think is going to happen to the red marble that is not moving when I roll the blue marble at it.
Energy can never be created or destroyed. True or False
True!
The law of conservation energy explains that energy is all around us and it is constantly changing from potential and kinetic energy.
What kind of energy does water moving down a waterfall have? Why?
Kinetic energy because the water is using energy to move down the waterfall.
The amount of energy transferred during a collision depends on the ______ and _____ of the moving object.
Weight and Speed
Do you think the ball of tin foil will go farther than the marble? Why or why not?
It will go farther because it is lighter and requires less energy to move.
The more energy that is stored in something the ___________ it goes when it is released.
Faster
Give your own example of potential energy and an example of kinetic energy.
Answers may vary
The greater the speed when objects collide, the _________ amount of energy transferred.
Larger
Looking at this toy train how can we produce the most kinetic energy? Why?
Pull the train as far back as you can. The more energy you put into something the more energy you will get out.
Two identical bowling balls, bowling ball X and Y, are traveling down ramps of the same length. Bowling ball X travels faster down the ramp then bowling ball Y does. Which bowling ball has more energy as it rolls down the ramp? Why?
Bowling ball X because it is faster than bowling ball Y.
Label the roller coaster
A. Most Kinetic energy
B. Most potential energy
C. Equal amount of kinetic and potential energy
Answers in order
B.
A.
C.
How can you determine a transfer of energy has taken place when two objects collide?
1. Location Change
2. Speed Change
(Can also say sound of collision)
Use the following martials to display a collision. Tell us where the potential and kinetic energy is. Tell us one way we could tell a transfer of energy took place.
Student should hit the ball with the club. The potential energy it in the club and it is kinetic when it hits the ball. You can see a change in location, seed change, and hear the transfer of energy.