What is Energy?
What is the energy that is stored in matter and that can be released by a chemical reaction?
Chemical Energy
What is a property of a particle that affects how it behaves around other particles?
Electric Charge
What are two examples of electrostatic discharge?
Lightning or walking across a carpet and touching something metal
What flows through copper wires to help conduct electricity?
The flow of electrons
How is energy transformed when you plug in a stereo?
Electrical energy to sound energy
What is the total energy of motion and position of an object?
Mechanical Energy
What has a positive charge?
Proton
Why does lightning occur?
Positive charges build up in the cloud and the ground has a negative charge
What is something in your home that uses electricity?
Accept appropriate responses
How is energy transformed when you turn on the lights?
Electrical energy into thermal energy and light energy
What is never used up?
Energy
What has a negative charge?
Electron
How do we reduce static electricity in dryers?
Using a dryer sheet
What is a device that converts electrical energy into mechanical energy?
An electric motor
How is energy transformed when you use a drill?
Electrical or chemical energy into energy of motion or mechanical
What causes a change of state?
Temperature
What has a neutral charge (no charge)?
Neutron
What happens when a balloon with two like charges are placed side by side?
They repel or push away from each other
What happens when you move a magnet and a wire near each other?
It produces an electric current
What source of energy can travel through empty space?
Light energy
What is energy of an object based on its position or condition?
Potential Energy
What can atoms sometimes gain or lose?
Electrons
What would happen if you rubbed a balloon in your hair?
Charges would build up on the balloon and the opposite charges in the hair would cause the hair to attract to the balloon
Electromagnet
What kind of energy cannot travel through empty space?
Sound energy
What is energy of an object based on its motion?
Kinetic Energy
What do particles of the same charge do?
Repel
Why do two socks sometimes stick together in a dryer?
Electrons move from one sock to another
What happens when a coil of wire turns inside magnets?
An electric current flows through the wires.
Which types of energy does a spring toy have as it flies through the air?
Kinetic and potential
What is a form of energy that travels in waves in vibrating matter?
Sound Energy
What do particles of opposite charges do?
Attract
What is the electric charge of a neutral atom from which an electron has been removed?
positive
What effect does decreasing the number of coils around the nail have on the strength of an electromagnet?
It becomes weaker
Compared to the total sum of kinetic and potential energy a book has while on a shelf, about how much would it have when it is halfway from the shelf to the ground?
The same amount
Thermal Energy
What is the build up of charges called?
Static Electricity
What is true about how a charged object interacts with a neutral object?
They attract each other
Where is energy produced?
Which energy transformation do you use to make a piece of toast?
Electrical energy into heat energy
What is a form of energy that can travel through space?
Light Energy
What is lightning an example of?
Electrostatic Discharge
What went wrong with our wool cloths?
They did not create charges on the comb
What produces hydroelectric energy?
The mechanical energy of falling water
Which type of energy does a book have when it is on a shelf?
Kinetic Energy
What is the energy caused by the movement of electric charges?
Electrical Energy
What is the flow of charges called?
Electric Current
What did we use to create opposite charges?
A balloon
What causes wind turbines to create energy?
Energy of motion from the wind
Which energy transformation occurs when a fan is plugged into a wall?
Electrical energy into energy of motion