Basic Energy
Kinetic & Potential
Forms of Energy
Law of Conservation of Energy
Vocabulary
100
What is energy?
Energy is the power to cause change.
100
How do we know if something has kinetic energy?
We ask, "Is it moving right now?"
100
What forms of energy does a hot bowl of rice have? (List at least two forms!)
chemical energy, thermal energy, mechanical energy, gravitational energy
100
What does the Law of Conservation of Energy say?
The Law of Conservation of Energy says that energy cannot be created nor destroyed.
100
What is kinetic energy?
Kinetic energy is energy of motion/movement.
200
What are three changes that energy can cause?
light, change in temperature, sound, movement, new substance
200
How do we know if something has potential energy?
We ask, "Is it going to move in the future?"
200
What forms of energy does a stretched out rubber band have? (List at least two forms of energy!)
elastic energy, gravitational energy, mechanical energy, thermal energy
200
What is the "path" of thermal energy in a paper cup if I pour hot coffee into the cup?
The thermal energy "starts" in the hot coffee, then it transfers into the cup. Then, the thermal energy transfers into the air.
200
What is potential energy?
Potential energy is stored energy.
300
Ashlee turns on a light in her room after school. How do you know that energy was involved in this situation?
There was a change in light and temperature.
300
Which one has MORE kinetic energy?
a. a ball going 100 miles per hour
b. a ball going 500 miles per hour
b. a ball going 500 miles per hour
300
What forms of energy does a human have? (List at least two forms of energy!)
thermal energy, chemical energy, elastic energy, gravitational energy, electrical energy, mechanical energy
300
How does a soccer player get energy to play in their games? (Talk about the forms of energy and the transfer of that energy.)
The soccer player eats breakfast in the morning to get chemical energy from the food. Then, the player turns that chemical energy into mechanical and thermal energy.
300
What is thermal energy?
Thermal energy is heat energy.
400
David shoots a basketball and scores for his team. The crowd goes wild! How do you know that energy was involved in this situation?
There was movement and an increase in sound.
400
Which one has MORE potential energy?
a. a ball at the top of a hill
b. a ball at the bottom of a hill
a. a ball at the top of a hill
400
What forms of energy does an atomic bomb have? (List at least two forms of energy!)
nuclear energy, gravitational energy, mechanical energy, chemical energy
400
Little Bobby puts a paper ball into a rubber band slingshot. How does the paper ball get energy to shoot across the room? (Talk about the forms of energy and the transfer of that energy.)
Little Bobby uses mechanical energy to pull back the rubber band. The rubber band has elastic potential energy that transfers into the paper ball as mechanical energy when Little Bobby lets go of the rubber band.
400
What is gravitational energy?
Gravitational energy is the potential energy of gravity (the "pull" of the Earth).
500
Tamara leaves their bike outside for a few months. Rust forms on the bike. How do you know that energy was involved in this situation?
A new substance formed.
500
Which one has MORE potential energy?
a. a bowling ball at the top of a hill
b. a little ping pong ball at the top of the same hill
a. a bowling ball at the top of a hill
500
There is a type of slime that is magnetic. What forms of energy does magnetic slime have? (List at least two forms of energy!)
magnetic energy, mechanical energy, gravitational energy, chemical energy (NOT elastic energy)
500
Why do we put on coats and extra layers on in the winter? Why does this keep us warm? (Talk about the transfer of thermal energy.)
The thermal energy "starts" in our body. Then, it transfers from layer to layer. When we put on more layers, the thermal energy stays trapped near our body and cannot get into the air as easily.
500
What is mechanical energy?
Mechanical energy is the energy in the moving parts of something.