Electricity And Magnestism

Question 1

What’s a conductor

Answer 1

Allows charge to flow through it

Question 2

What’s an insulator

Answer 2

Doesn’t allow charge to flow through it

Question 3

What does a conducted have

Answer 3

Free electrons (charges) that drift along the wire from atom to atom.

Question 4

Electrons are always

Answer 4

Negative

Question 5

How do we measure current

Answer 5

Using an ammeter

Question 6

What is current measured in

Answer 6

Amps (A)

Question 7

What’s a series circuit

Answer 7

It has the same current at all points

Question 8

Why is there less flow of charge when more components are added

Answer 8

There is more resistance to the flow of charge meaning that the current is reduced decreasing the brightness of the bulbs

Question 9

What’s a parallel circuit

Answer 9

Where the current has a choice of routes

Question 10

|l

Answer 10

Cell

Question 11

|l—|l—

Answer 11

Battery

Question 12

-

Answer 12

Connecting Wire

Question 13

Circle with m in it

Answer 13

Motor

Question 14

Rectangle with arrow pointing through it

Answer 14

Variable resistor

Question 15

-•/•-

Answer 15

Ope switch

Question 16

Circle with x in it

Answer 16

Bulb

Question 17

Circle with v in it

Answer 17

Voltmeter

Question 18

Circle with a in it

Answer 18

Ammeter

Question 19

-•-•-

Answer 19

Closed switch

Question 20

What happens to the electrons if there is a high resistance

Answer 20

It means they can’t flow as easily

Question 21

What does an open switch do

Answer 21

It stops the flow of charge

Question 22

A voltage of one volt means …

Answer 22

Each unit of charge is given 1j of energy

Question 23

What happens if there are more cells in series

Answer 23

There is a bigger voltage because there is a bigger difference in energy across the battery

Question 24

Voltage is shared in series

Answer 24

Voltage is equal to the cell in parallel

Question 25

How do you work out the voltage of something

Answer 25

V= resistance (ohms) x current (A)

Question 26

Lemons oranges ect because they are acidic

Answer 26

What types of fruit are the best

Question 27

What is static electricity

Answer 27

When charge builds up on an object and doesn’t move. Rubbing insulators together will transfer electrons from one to another. The type if materiel of the cloth and the rod determines which gains the electrons

Question 28

What happens to the substance that gains electrons

Answer 28

They become negatively charged. A substance that loses electrons becomes positively charged

Question 29

What type of materials conduct heat

Answer 29

Metals