Show:
Making and Controlling Electromagnets
More on Electromagnets
How Electromagnets are Used
Generators
Electrical Energy
100
This is what is used to carry an electrical current in an electromagnet.
What is a wire?
100
This is the material inside of the wire coil.
What is a core?
100
This type of energy is the energy of motion.
What is kinetic energy?
100
A generator is a machine that converts other forms of energy into this kind of energy.
What is electric energy?
100
A fan converts electrical energy into this.
What is motion?
200
This is at the center of an electromagnet.
What is an iron core (nail)?
200
This is what can be picked up by a small electromagnet like the one made in the Investigate.
What are paper clips or small pieces of metal?
200
A fan has this type of energy.
What is kinetic energy?
200
This type of generator functions by physically turning a crank.
What is a kinetic generator?
200
This machine converts electrical energy into heat and light.
What is a toaster?
300
This is how a machine in a scrap yard controls an electromagnet.
What is turning it on and off?
300
This is what happens if an extra battery is used.
What is strengthening the magnetic force?
300
An electromagnet moves a metal bar inside coils in this type of machine.
What is a relay (or a car)?
300
This generator also uses kinetic energy but the force of the air turns the coils in an electromagnet.
What is a wind-powered generator or windmill?
300
This item converts electrical energy mostly into light.
What is a neon light?
400
This changes the electric current.
What is rotating the battery?
400
This is what happens when more coils are wrapped around the core.
What is strengthening the magnetic force?
400
This causes an electric doorbell to keep ringing when a button is pushed.
What is alternating current?
400
This generator also uses kinetic energy but the force of a river turns the coils in an electromagnet.
What is a water-powered generator?
400
This device protects homes and machines from the danger of too much current flowing through a wire.
What is a circuit breaker?
500
These are the supplies needed to make an electromagnet.
What are batteries, wire, and an iron nail?
500
This is what gives an electromagnet force.
What is electric current?
500
This causes a motor to turn.
What is changing the direction of electric current?
500
This type of generator is used in buildings for the case of power-outages.
What is a gas-powered generator?
500
This is a material that does not carry current easily.
What is insulation?