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Open Says Me
Safety First
Define This
This and That
What Do You Call It?
100
If you disconnect the wires of a circuit, you have done what to the circuit?
Opened the circuit.
100
Should you ever use an electric appliance in or near water?
No this is very dangerous.
100
What is a generator?
A generator produces electricity that you use in your home or in school.
100
What kind of magnet do recycling centers use?
Electromagnets.
100
What is used in recycling centers to separate aluminum and steel cans?
An electromagnet.
200
If you remove the battery from its holder, what have you done to the circuit?
Opened the circuit.
200
Should you ever use a lamp with a damaged electrical cord?
Never.
200
What is located around an electromagnet?
A magnetic field surrounds an electromagnet.
200
Electromagnets are used to separate cans made of what?
Aluminum and steel.
200
What is used to produce the energy that we use every day?
A generator.
300
If all the parts of a circuit are connected to each other the circuit is what?
The circuit is closed.
300
If you see an appliance with a damaged cord, what should you do?
Have an adult unplug the appliance.
300
What is the force called that "pushes" electricity along a wire?
The force that pushes electricity along a wire is called voltage.
300
How does electricity move?
It flows.
300
What is the area around an electromagnet surrounded by?
A magnetic field.
400
What happens if you open a switch?
You open the circuit and the power goes out.
400
Why should you replace damaged electrical cords?
They are dangerous and can cause fires.
400
What changes the sun's energy into electrical energy?
A solar cell changes the sun's energy into electrical energy.
400
What is the force that "pushes" electrical current called?
The force that pushes electrical current is called voltage.
400
How many electric cells do batteries contain?
Two or more.
500
What happens if you close a switch?
You close a switch and the power goes on.
500
What can happen when the insulation that covers an electrical cord is damaged?
A fire can happen or a person can be injured.
500
What is a battery made up of ?
A battery is made up of two or more electric cells.
500
Why is voltage often compared to water in a garden hose?
Both water and electric current flow.
500
How do batteries create current?
They turn chemical energy into electrical energy.