Physics Part 1

Question 1

What is Coulomb?

Answer 1

The standard unit for the measurement of Electrical Charge

Question 2

What is Ohm?

Answer 2

The standard unit for the measurement of resistance

Question 3

What is Ampere?

Answer 3

The unit for the measurement of electrical current.

Question 4

What is Voltage?

Answer 4

The force that pushes charged electrons across a circuit.

Question 5

What is Joule?

Answer 5

The measurement of energy.

Question 6

What is Current measured in?

Answer 6

Amps (A)

Question 7

What is current?

Answer 7

The rate of flow of charge around a circuit

Question 8

How are Ammeters connected?

Answer 8

In series with other components in any circuit

Question 9

What is special about current

Answer 9

It stays the same throughout the whole circuit and is not used up

Question 10

What will increasing the number of components do?

Answer 10

The current will decrease everywhere in the circuit evenly

Question 11

What is voltage and what is it measured with?

Answer 11

Known as potential difference and measured using a Voltmeter

Question 12

What happens to the voltage supplied by the battery?

Answer 12

It is shared between the components in a series circuit

Question 13

What happens to a lightbulb when there are more volts passing through it?

Answer 13

It will shine brighter

Question 14

The more cells the higher the

Answer 14

Current

Question 15

Resistors add up

Answer 15

Resistors add up

Question 16

What is the most common metal used in wires

Answer 16

Copper

Question 17

Insulators and Conductors

Answer 17

Insulators dont conduct electricity

Question 18

What is the source of the circuit

Answer 18

The battery or cell

Question 19

How a 2 way switch operates

Answer 19

Explain

Question 20

What does a parallel circuit contain

Answer 20

A junction where the current can split or join. This means there is more than one path around the circuit.

Question 21

Components must be connected to the cell without any breaks in order for them to work

Answer 21

Components must be connected to the cell without any breaks in order for them to work

Question 22

The voltage across each branch of a parallel circuit stays the same

Answer 22

The voltage across each branch of a parallel circuit stays the same

Question 23

Cell voltages add up if they are facing the same way and connected in series. If any are the wrong way round they subtract from the total voltage

Answer 23

Cell voltages add up if they are facing the same way and connected in series. If any are the wrong way round they subtract from the total voltage