T4 - ELECTRICITY

Question 1

What are the parts of the atom

Answer 1

Proton, Electron, Neutrons and nucleus

Question 2

What is atomic theory

Answer 2

All matter is mad up of atoms
At the Centre of each atom is the heavy nucleus
Surrounding the nucleus is a lot of empty space and electrons
Inside the nucleus there are protons and neutrons
Usually an equal amount of protons and electrons

Question 3

Electricity def

Answer 3

A form of charged energy that results from the existence of charged particles either statically as an accumulation of charge or dynamically as a current

Question 4

Conductor def

Answer 4

A material that conducts electricity or heat

Question 5

What is an electric circuit?

Answer 5

ELectric circuits consist of:
- A power Supply: provides the electrical energy
- A load: Where electrical energy is converted into other useful forms of energy
- A conducting path that allows electric charge to flow around the circuit

Question 6

What are the 2 types of circuits

Answer 6

Series Circuit:
- Series that are connected one after another on the same loop are connected in series
- The charge flowing must flow through each part one after the other similar to following a path or line
- If one lamp breaks all other lamps will not light up

Parallel Circuit:
- Components that are connected on separate loops are connected in parallel
- If one lamp breaks the others will still light up

Question 7

How is electrical energy formed

Answer 7

Electrons in atoms can move from one atom to another, this movement creates an electrical energy.

Question 8

Conductors?

Answer 8

Conductivity is how easily electrons can move from one electrons to another

Conductors allow electrons to move easily

Question 9

Insulators

Answer 9

Substances where it is hard for electrons to move
Insulators have atoms where it’s electrons are held tightly to it.

Question 10

Explain why the conducting paths in electric appliances are usually made of metals like copper.

Answer 10

Metals usually form the basis of conducting paths in electrical appliances because they allow electrons in the current to flow very easily through them, providing little resistance.

Question 11

What is the difference between current and voltage?

Answer 11

Current: The amount of electrical charge inputed into the circuit
Voltage: Is the amount of potential energy passing through the circuit