Electricity and Energy Yr10

Question 1

What are Conductors

Answer 1

Conductors are materials that allow the movement of electrons through them because they have delocalised electrons so that they can freely move about. They also have little to no resistance so it is easy for electricity to pass through.

Question 2

What are Insulators

Answer 2

Insulators are materials that do not allow the movement of electrons and electricity through them because they have no delocalised electrons. They also have high resistances.

Question 3

What is Electricity

Answer 3

Electricity is a form of energy that involves the movement of electrons from 1 atom to another.

Question 4

What is Electrical Current

Answer 4

The movement of charged electrons moving through a closed circuit when a voltage is added to the circuit.

Question 5

Is water a conductor

Answer 5

Yes

Question 6

What is Static/Electrostatic Electricity

Answer 6

Electricity that is not moving

Electrostatic is where electrons collect on surface of object that is usually an insulator. Like when a balloon is rubbed on hair and hair stands up since opposite charges attract.

Question 7

What is Energy

Answer 7

The ability to do work or make change
We either use or store energy

Question 8

What are the Types of Energy

Answer 8

Kinetic
Electrical
Sound
Light
Heat
Gravitational Potential
Chemical Potential
Elastic Potential
Nuclear

Question 9

What is Electricial Energy

Answer 9

Movement of electrons through a closed circuit powered by voltage

Question 10

What is kinetic energy

Answer 10

Any object moving

Question 11

What is sound energy

Answer 11

Energy given off as sound waves by vibrations moving through something like vibrations of piano keys

Question 12

What is light energy

Answer 12

Light energy = Light waves. Kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun. Light contains photons which are minute packets of energy.

Question 13

What is Heat Energy

Answer 13

Heat energy is the resultant of movement from particles called atoms, molecules or ions in solids, liquids or gas.

Question 14

What is Gravitation Potential Energy

Answer 14

Stored Energy due to the something’s position like height above ground. Like stored energy in something about to fall from sky

Question 15

What is Chemical potential energy

Answer 15

Energy stored in the bonds of the atom. Like energy stored in batteries and petrol. This energy can be used later instantly. Chemical applies to all forms of stored energy NOT IN THE AIR AND CANNOT STRETCH

Question 16

What is Elastic Potential Energy

Answer 16

Energy stored when stretched or squashed.

Question 17

What is nuclear energy

Answer 17

Energy when you split atom by fission or when you fuse atoms by fusion.

Question 18

What happens if a thing in a circuit breaks or there is a wire in circuit that connects to nothing on the circuit.

Answer 18

The circuit will short circuit making it not glow and work

Question 19

What happens to current and voltage in series and parallel circuits

Answer 19

Current in Series stay same
Current in Parallel are different

Voltage in Series are different
Voltage in Parallel are the same.

Question 20

What is current

Answer 20

The rate of flow of charge in a circuit by negatively charged electrons

Question 21

What measures Current

Answer 21

Ammeters are used to measure connected but they must be connected in series

Question 22

What is voltage

Answer 22

It is the electric potential difference between two points in an electric circuit. This means voltage represents the energy provided (or taken away) for each coulomb of charge that passes between these two points. It can also be understood as the “pressure” that drives electric charges (electrons) to move in a circuit.

Question 23

What is Resistance

Answer 23

Resistance is the opposition against the flow of electrons in a circuit.

Question 24

What measures voltage and how should it be connected

Answer 24

Voltmeter. Must be connected in parallel

Question 25

What is Ohm’s law

Answer 25

V = IR
R = V/I
I = V/R