Elementary School: 1st and 2nd Grade - Science - Electrical Circuits 1 Solution

Q.1.

With which group of items could you build a complete circuit?

Q.2.

Why are electrical wires covered with plastic or rubber?

0%
Plastic and rubber are comfortable materials to touch
0%
Smooth materials keep wires from getting tangled
100%
Plastic and rubber are good electrical insulators
0%
Plastic and rubber can be made in different colors so people can tell different leads apart

Q.3.

Why might a circuit fail to work?

0%
It might have a dead battery
0%
It might have two leads connected to the positive pole of the battery and none connected to the negative
0%
It might have a break in the circuit
100%
All of the above

Q.4.

Which of these materials would be a good electrical conductor?

Q.5.

What is an electrical circuit?

Q.6.

What will a circuit with an open switch do?

Q.7.

What symbol is used in a circuit diagram to represent a bulb?

Q.8.

A material which allows electrical current to pass through it is called what?

Q.9.

Besides cells, or batteries, what is another source of electrical power?

Q.10.

You have made a simple circuit with one bulb. If you wanted to add an extra bulb without the first bulb dimming, what would you need to design?