Energy Vocab.
The definition of a system
What is a set of interacting parts forming a complex whole?
The thing that occurs when something has energy.
What is it moves or changes?
Something with this energy will be able to move/change in the future.
What is potential energy?
You rub your hands together quickly and they become warm. What form of energy is produced?
Thermal Energy
What are the two ways energy can change in a system?
Energy can be transferred and converted.
The definition of energy.
What is the ability to make things move or change?
What is kinetic energy?
This type of energy is related to temperatures.
What is thermal energy?
A soccer player kicks a ball. Explain how energy is transferred.
Energy is transferred from the player's moving foot to the ball, causing the ball to move.
What is Ms. Bordone’s favorite drink?
coffee
The definition of generator.
What is a machine that can convert, or change, kinetic energy into electric energy?
The ability something has when it has potential energy.
What is the ability to move or change in the future?
This is held in batteries. (No it is not potential.)
What is electric energy?
A flashlight uses a hand crank instead of batteries. Why is the crank an important part of the system?
Turning the crank provides motion that the generator can convert into electrical energy.
What is Ms. Bordone’s favorite color?
GREEN
The definition of convert.
What is to change from one type to another?
Can anything create energy on its own?
No.
This comes from the sun.
What is light energy?
During a blackout, Maya wants to charge her phone without an outlet. She has a hand-crank generator. Describe the energy changes that allow her phone to charge. Please list all "steps"
Energy from Maya's body → motion/kinetic energy of the crank → electrical energy → energy stored in the phone's battery.
How is it possible to charge an electrical device when the power is out? Use transfer and convert in your answer.
Human energy can be used to move something, such as a crank or pedals. A generator converts that energy into electrical energy, which is transferred to the device to charge it.
The definition of transfer.
The thing that energy can do from one object to another.
What is transferring from one object to another?
What is kinetic energy?
A student says, “The generator creates energy.” What is wrong with this statement?
A generator doesn't create energy. It converts energy from one form to another.
Scenario: Philadelphia experiences a major power outage. Your team needs to design a device that can charge a phone without batteries or an electrical outlet. Your materials include a bicycle, generator, wires, and charging cable.
Question: Explain how your system would work using the words system, kinetic energy, generator, convert, transfer, and electrical energy.
The bicycle, generator, wires, and charger make up a system. When a person pedals, they produce kinetic energy. The generator helps convert the energy from the moving bicycle into electrical energy. That energy is transferred through the wires to the phone so it can charge.