Show:
Static
Currents
Transfer of Energy
Transform
Magnets
100
An excess of positive or negative charge in an object.
What is static electricity?
100
A charge in motion.
What is an electric current?
100
A force that acts when two surfaces rub together.
What is friction?
100
The scientist that discovered electric currents can produce a magnetic field.
Who is Hans Christian Oersted?
100
A force that acts on moving electric charges and magnetic materials.
What is magnetism?
200
The three types of particles in an atom.
What are positive charges, negative charges, neutral charges?
200
Materials that an electric charge can move through easily.
What are conductors? Examples - metals
200
Name three forms of energy.
What is electricity, light, sound, heat, motion?
200
A magnet that only works when electricity is provided.
What is an electromagnet?
200
The space around a magnet.
What is the magnetic field?
300
The result of a fast, powerful release of static electricity in clouds.
What is lightning?
300
Materials not easily charged and two examples.
What is an insulator? Examples are rubber, plastic, glass, wood.
300
This thin, coil wire can change electrical energy to heat and light.
What is the filament?
300
Two special properties of electromagnets.
What is you can turn on and off the magnetism and you can increase or decrease how strong the magnet is?
300
The behavior of magnets.
What is two like poles repel and two unlike poles attract?
400
If two balloons repel each other, this is what you can conclude about the two charges.
What is that both balloons have the same charge?
400
This part of a circuit transforms electrical energy into other forms of energy.
What is a resistor?
400
Give an example of electrical energy turning into heat.
What is a hair dryer, a dryer, an oven? Make sure you know how appliances or objects can transform electrical energy to other forms of energy.
400
When a magnet slides back and forth in a coiled wire, this can happen to the electricity.
What is the electricity will increase?
400
How the Earth like a magnet.
What is Earth has a magnetic field and has a north and south pole?
500
What happens when you rub a balloon on your head.
What is negative charges jump onto the balloon, unbalancing the charges with your hair and the balloon?
500
The difference between a series circuit and a parallel circuit.
What is a series circuit has one circular path and a parallel circuit has two or more paths. In a series circuit, if you break the path, the flow of electricity stops. In a parallel circuit, if you break the path, electricity can still flow through.
500
About 10% of the energy in an incandescent bulb can be turned into light and the rest to heat. If an incandescent bulb consumes 100 kilowatt hours, how much is used for light and how much is used as heat?
What is 10 kilowatt hours as light and 90 kilowatt hours as heat?
500
The type of energy transformed in a generator.
What is energy of motion changing to electrical energy?
500
The reason why a compass needle points in a north-south direction.
What is the needle reacts to Earth's magnetic poles?