The ability to do work, cause motion, or create change
What is energy?
**If no work is being done, no motion is being caused, or no change is being created, then there is no energy involved.**
In sound energy, faster vibrations cause A -pitched sounds and slower vibrations cause B -pitched sounds.
What are (A) higher and (B) lower?
Two students kick a soccer ball. Maria's soccer ball goes farther than Anna's ball. The student who transferred a greater amount of energy to the ball was .
Who is Maria?
The part of a simple electrical circuit that is a form of potential energy
What is the battery?
An electric charge is created when these particles are exchanged from one object to another
What are electrons?
The bouncing back of light rays from a surface
What is reflection?
A form of energy that is produced when electrons move from one place to another place
What is electricity?
A television transforms most of the electricity it uses into these two forms of energy
What are light and sound energy?
The reason electrical wires have plastic or rubber coatings on them
What is (something like) plastic and rubber are insulators, which means they stop electrical currents from flowing. Covering an electrical circuit with plastic or rubber will keep a person touching the wire from getting shocked by the electric current.
Opposite charges .
What is attract?
A complete path of conductors that an electric current can flow through
What is a circuit?
The energy of moving particles in a substance
What is heat (or thermal) energy?
The cause of your chair's movement when you push it under your desk
What is the force of your hand pushing on the chair?
This type of circuit is required for electricity to flow
What is a closed circuit (or a complete loop)?
A constant flow of electrons through a conductor
What is an electrical current?
A material that allows heat energy or electricity to pass through it easily
What is a conductor?
The energy of motion, which is the sum of kinetic and potential energy
What is mechanical energy?
Explain the transfer of energy required to boil a pot of water on an electric stove
What is electrical energy transforms into thermal energy?
The function (job) of a switch in a simple circuit
What is the switch opens the circuit to turn the flow of electricity off and closes the circuit to allow the electricity flow to turn on?
A particle that is in the space around the nucleus of an atom and has a negative charge
What is an electron?
A temporary magnet created by a flow of electric current around an iron bar
What is an electromagnet?
The point of greatest potential energy on this roller coaster
What is Point A?
Explain the transfer of energy required for a toaster to work
What is the toaster transforms electrical energy from the plug into heat energy when the electrical current reaches the resistors in the circuit (basically, electrical to heat)?
What you get when you make a closed circuit with a battery, a copper wire, and an iron nail
What is an electromagnet?
**Electrical energy from the battery transforms into magnetic energy.**
This will happen when two negatively charged balloons are placed near each other
What is they will repel each other?