Show:
Magnets
Electricity and Magnets
Generators and
Motors
Energy and Conservation
Vocab plus tricky 500
100
Where are the magnets the Strongest?
What are the poles?
100
What happens when you take the electricity from an electromagnet?
It loses its magnetism.
100
What is a generators job?
It turns mechanical energy to electrical energy.
100
What are the five ways to make energy?
What is tidal energy, wind energy, solar energy, hydro electricity, and geothermal energy?
100
What is the definition of a permanent magnet?
A Magnet that does not lose its magnetic abilities.
200
What are 2 causes of Earth's magnetic field?
1.It has an iron and nickel core 2. Earth rotates
200
What are some devices that use electromagnets?
What are doorbells, cars, and airplanes?
200
What is a motors job?
It turns electrical energy to mechanical energy.
200
What is the most common substance used for energy in the united states and Canada?
United States: coal Canada: petroleum
200
What is the definition of kilowatt?
What is the measurement equal to 1000 watts?
300
A temporary magnet is mad this way.
What is by taking a magnetic substance and stroking it against a permanent magnet?
300
What is electromagnetic induction?
Electromagnet induction forms when a magnetic field produces a voltage across the conductor.
300
What is an Electric Power Grid?
It is connected to power plants all across the country.
300
What is a turbine?
A turbine is mad up of blades which are connected to a shaft which is connected to the ground and surrounded by a magnet.
300
What is the definition of commutator?
What is a reversing switch in a motor made to run on direct current?
400
What are three materials that stick to magnets?
What are iron, nickel, and cobalt?
400
How can a magnet be used to produce an electric current?
The way a magnet can produce an electric current is when you put a magnet through a coil of wire.
400
What is a turbine?
Blades are attached to a pole called a shaft. Wire is coiled around the shaft and the shaft is surrounded by a magnet.
400
How does tidal energy work?
The force of the water pushes the blades of the turbine which produces energy.
400
What is the definition of penstock?
What is a large tube that carries water to the turbines?
500
Describe what happens to magnets in these situations: a. North pole to North pole b. South pole to South pole c. South pole to North pole d. North pole to South pole
a. repel b. repel c. attract d. attract
500
What happens when you take the electricity from an electromagnet? What are the main parts of an electromagnet?
It loses its magnetism. What are a source of electricity, a conductor, and an iron or nickel core?
500
What are the 8 things that make up the electric power grid?
what is a Power Plant, generator, turbine transformer, power lines, transformer, meter, and an outlet.
500
What are some ways to conserve energy?
Turn off lights when no one is in the room, during the day open blinds instead of turning on lights, and conserve water.
500
What is an aurora?
What are different colors of lights in the night sky caused by molecules returning to a natural state and giving off their extra energy?