Physics

Question 1

State the two types of electric charge

Answer 1

-negative
-positive

Question 2

state the charge on an electron, proton and a neutron

Answer 2

-positive
-negative
-no charge

Question 3

what happens when like charges make contact

Answer 3

they repel

Question 4

what happens when unlike charges make contact

Answer 4

they attract

Question 5

Describe what a current is

Answer 5

The amount of charge flowing per second

Question 6

Name the meter you use to measure current

Answer 6

ammeter

Question 7

What is current measure in

Answer 7

Amps/amperes

Question 8

What is the symbol for amps

Answer 8

A

Question 9

Name the meter you use to measure potential difference

Answer 9

voltmeter

Question 10

What is current measured in

Answer 10

volts

Question 11

What is the symbol for volts

Answer 11

V

Question 12

State two differences between a parallel and a series circuit

Answer 12

In a parallel circuit there is more than one loop
If one bulb breaks the circuit can still work

Question 13

State what happens to the total current as you add more branches in a parallel circuit

Answer 13

The total current increases

Question 14

State what is meant by resistance

Answer 14

How easy or hard it is for charge to pass through the component

Question 15

State the unit of resistance

Answer 15

ohms

Question 16

Name the two poles

Answer 16

North and SouthS

Question 17

State the type of material you can use for the core of an electro magnet

Answer 17

Coil

Question 18

State three things that affect the strength of an electromagnet

Answer 18

-The number of turns or loops
-The current flowing through the wire
-The type of core

Question 19

State the type of magnet used to levitate a train

Answer 19

electromagnets