Circuits

Question 1

3 compulsory components in a circuit?

Answer 1

Power source, conductors pathway, energy user.

Question 2

Equation for Power?

Answer 2

P= I x V.

Question 3

(Brightness) More power=

Answer 3

Brighter.

Question 4

(Brightness) Less power=

Answer 4

Dimmer.

Question 5

(Brightness) Adding Light Bulb in series=

Answer 5

Lights get dimmer.

Question 6

(Brightness) Adding Light Bulb in parallel=

Answer 6

Lights stay the same brightness.

Question 7

What is Resistance?

Answer 7

Opposes the flow of the current.

Question 8

What is Resistance measured in?

Answer 8

Ohms Ω.

Question 9

(Resistance) Adding Light Bulb in series=

Answer 9

Resistance increases, current decreases.

Question 10

(Resistance) Adding Light Bulb in parallel=

Answer 10

Resistance stays the same, current stays the same.

Question 11

What is the difference between a series and parallel circuit.

Answer 11

Parallel circuit has more than one path and a series circuit only has one.

Question 12

Definition of Current.

Answer 12

The rate of flow of charged particles (electrons).

Question 13

What is current measured in?

Answer 13

Ammeter’s (A).

Question 14

What is the symbol of current?

Answer 14

I.

Question 15

What is the symbol of Resistance?

Answer 15

R.

Question 16

What happens to the current in a series circuit?

Answer 16

The same at every point.

Question 17

What happens to the current in a parallel circuit?

Answer 17

It gets split into the branches.

Question 18

Definition of Voltage?

Answer 18

The amount of energy gained/lost across two points.

Question 19

What is Voltage measured in?

Answer 19

Volts, Voltmeter (V).

Question 20

What is the symbol of Voltage?

Answer 20

V.

Question 21

What makes a conductor good?

Answer 21

Low resistance, free electrons.