overview of most of the main content

Question 1

What are atoms made up of

Answer 1

Sub-atomic particles

Question 2

Types of subatomic particles

Answer 2

Protons
Electrons
Neutrons

Question 3

Protons

Answer 3

Type of subatmoic particle that is postiviely charged

Question 4

Electrons

Answer 4

Type of subatomic particle that is negatively charged

Question 5

Neutrons

Answer 5

Type of subatomic particle that has no charge

Question 6

What kind of energy does an atom have

Answer 6

nuclear energy

Question 7

What is the number of protons equivalent to

Answer 7

Number of electrons

Question 8

Electricity

Answer 8

Electricity is a result of interaction

between charges

Question 9

How is electricity produced

Answer 9

Electricity is produced when electrons and protons are separated and
re-united.

Question 10

How do electrons transfer from one object to another

Answer 10

2 objects are rubbed together

Question 11

Electrical conductors

Answer 11

materials that allow for electrons to flow

easily and have low resistance

Question 12

Electrical Insulators:

Answer 12

Materials such as rubber that don’t allow electrons to flow, can leak charge slightly and have high resistance.

Question 13

Semi-conductors

Answer 13

are materials that are insulators in their pure form, but become
conductors when combined with small amounts of another substance eg. silicon

Question 14

Electrostatic charge

Answer 14

Electrostatic charge is the build up of charge on an uncharged
object or surface.

Question 15

3 rules of electrostatics

Answer 15

Like charges repel
Unlike charges attract
Charged objects attract neutral objects

Question 16

Static discharge

Answer 16

transferring of electrons from one object to another

Question 17

What causes sparks?

Answer 17

sparks happen when there is enough force to move electrons quickly across a gap.

Question 18

How does an atom get a positive charge

Answer 18

when electrons get knocked or pulled away from an atom

Question 19

How is the flow of electrons created

Answer 19

When electrons break free and get attached to another atom

Question 20

Current(electric current/current electricty)

Answer 20

Movement of electrons through a wire

Question 21

Electrical energy

Answer 21

energy that is caused

by moving electric charges.

Question 22

Electric circuits

Answer 22

are the pathway travelled by electrical energy

Question 23

energy source/power supply

Answer 23

pushes electrons around the circuit and provides the electrical energy eg. battery

Question 24

energy user/load/resistor

Answer 24

converts electrical energy into other useful forms of energy eg. light globe

Question 25

A CONDUCTING PATH

Answer 25

allows electrons to flow around the circuit eg. wires

Question 26

what unit is current measured in

Answer 26

Current is measured as ampere

Question 27

Ammetere

Answer 27

Ammeters measure the amount of electrons that flow through a circuit per second measures current

Question 28

Voltage

Answer 28

Voltage is a measure of the amount of forceneeded to move electrons in the circuit.

Question 29

What intstrument is current measured with

Answer 29

ammetre

Question 30

What is a series circuit like

Answer 30

In a series circuit, the components are connected one after | another along a single conducting pathway.

Question 31

What is a parallel circuit like

Answer 31

``` In a parallel circuit each component is separately connected to the energy source. -componets arranged parallel from eachtoher -2 pathways ```

Question 32

What is a parallel circuit like

Answer 32

``` In a parallel circuit each component is separately connected to the energy source. -componets arranged parallel from eachtoher -2 pathways ```

Question 33

summary of series circuit

Answer 33

one pathway voltage shared current same

Question 34

summary of parelle circuit

Answer 34

2 pathways voltage same current shared

Question 35

What instrument is voltage measrued with

Answer 35

voltmeter

Question 36

Resistance

Answer 36

Is a measure of how difficult it is for electrons to | move through an object.

Question 37

What is resistance measured in

Answer 37

OHM

Question 38

What instrument is resistance measured with

Answer 38

multimetre

Question 39

2 types of resistors

Answer 39

variable resistors-have resistance that can be altered | fixed resistors- resistors that have fixed resistance

Question 40

How is volts made-equation

Answer 40

``` V= I x R Voltage = current X resistance ```

Question 41

How is current made-equation

Answer 41

I= V/R | Currnet=voltage divided by resistance

Question 42

How is resistance created-equation

Answer 42

R=V/I | resistance = voltage divided by current

Question 43

Temperature-dependent Resistors

Answer 43

devices that change their resistance when the temperature varies, which affects the amount of current flowing through a circuit.

Question 44

Light Dependent Resistors (LDRs)

Answer 44

use light to change the amount of electrical current that moves through a circuit

Question 45

Fuse

Answer 45

a switch or wire in circuits that melts or burns when current flows too fast

Question 46

Fixed resistor

Answer 46

resistor with fixed resistance

Question 47

variable resistor

Answer 47

resistor that can alter its resistance

Question 48

direct current

Answer 48

current produec by a battery that flows in a single direction

Question 49

alternating current

Answer 49

type of current that periodically reverses its direction