Electrical Circuit

Question 1

What is the unit of measurements for electrical currents?

Answer 1

Amps, A, Amperes

Question 2

What is the instrament used to measure electrical current?

Answer 2

Ammeter

Question 3

What are the three units of measurements?

Answer 3

Volts, Amps, Watts

Question 4

What do Watts measure?

Answer 4

Power in a current

Question 5

What do Volts measure?

Answer 5

Resistance in a current

Question 6

What is the difference between series and parallel circuits?

Answer 6

In Parallel circuits, currents can take different routes around the circuit, while series circuits have no choice.

Question 7

Do series circuits make “AND” or “OR” circuits?

Answer 7

And

Question 8

Do parallel circuits make “AND” or “OR” circuits?

Answer 8

Or

Question 9

Build an, “AND” or “OR” truth table

Answer 9

Draw it out–>

Question 10

What is electric current?

Answer 10

Current is the flow of charge around circuit.

Question 11

Which way does convention and actual current flow?

Answer 11

Conventional current flows positive to negative, whereas actual current flows negative to positive.

Question 12

Is electric current used up in a circuit? Explain why?

Answer 12

No, the total current in a circuit is the same.

Question 13

Can electric current flow if a circuit is incomplete.

Answer 13

No

Question 14

What is resistance?

Answer 14

Anything in a circuit that slows down the flow of current.

Question 15

The lower the resistance of a component the better it is at conduction electricity? True or False

Answer 15

True

Question 16

The lower the resistance of a component the greater the current through it? T or F.

Answer 16

True

Question 17

The number of components in a circuit can affect the current too? T or F, Explain.

Answer 17

True, more components increase the resistance and slow down the current.

Question 18

What are conductors?

Answer 18

Materials that easily allow electricity to flow through them easily because they have low resistance.

Question 19

What are insulators?

Answer 19

Materials that don’t easily allow electricity to flow through them because they have high resistance.

Question 20

Give examples of conductors?

Answer 20

Steel and Iron

Question 21

Give examples of insulators?

Answer 21

Wood and Rubber.

Question 22

What sort of energy does batteries store? And what energy is it transformed into

Answer 22

Chemical energy, transformed into electrical energy.

Question 23

The electrical energy then transformed into different kinds of energy? T or F?

Answer 23

True e.g. Light energy

Question 24

What is an electron?

Answer 24

A tiny particle that has a negative charge. Electrons can flow through conductors.

Question 25

What is a circuit?

Answer 25

The complete route of the positive terminal of a power source.

Question 26

What is lead?

Answer 26

A wire that can connect different compounds in a compound.

Question 27

What is a terminal?

Answer 27

The positive and negative ends of a power source

Question 28

What are cells?

Answer 28

A chemical source of electrical energy. Cells may be connected in series to make up a battery.

Question 29

What are volts?

Answer 29

The unit of electrical energy.

Question 30

What are components?

Answer 30

One part on an electrical circuit.

Question 31

What are poles?

Answer 31

The different ends of an electrical component - one will be positive and the other negative.