electricity

Question 1

Electricity

Answer 1

electricity is the movement of electrical charge, usually carried by electrons in a wire

Question 2

True or false: do electrons move freely in metals

Answer 2

true

Question 3

what is the movement of electrons

Answer 3

electrical current

Question 4

How is current generated

Answer 4

Electric current is the flow of electrons through a conductor, like a wire

Question 5

what is a Voltage source

Answer 5

A battery or power supply creates a difference in electrical potential (voltage) between two points

Question 6

Closed path

Answer 6

if there’s a closed path (a circuit), electrons will move from the negative terminal to the positive terminal

Question 7

Current

Answer 7

this movement of electrons forms an electric current measured in amperes (A).

Question 8

what is a Closed circuit

Answer 8

A complete path for electrons to flow. The current flows and allows lights/devices to work

Question 9

what is an Open circuit

Answer 9

A broken or incomplete path, there is a gap somewhere in the loop. There is no current flowing which means that the light or devices don’t work.

Question 10

what is the equipment used to measure current

Answer 10

ammeter

Question 11

what is the equipment used to measure voltage

Answer 11

voltmeter

Question 12

what is voltage

Answer 12

the amount of energy or force given to electrons to move in a circuit

Question 13

what is current

Answer 13

the flow of electrons through a wire

Question 14

what is resistance

Answer 14

the opposite flow of the electric current

Question 15

what is the unit for voltage

Answer 15

voltage is measured in volts (V)

Question 16

what is the unit for current

Answer 16

current is measured in amperes or amps (A)

Question 17

what is the unit for resistance

Answer 17

resistance is measured in ohms (Ω)

Question 18

what is a single cell

Answer 18

A cell is a single unit that converts chemical energy into electrical energy

Question 19

what is a battery

Answer 19

a battery is a collection of two or more cells, typically connected in series

Question 20

what is the difference between a single cell and a battery?

Answer 20

a cell is a single cell while a battery is a collection of cells that is usually connected in series, they both convert chemical energy into electrical energy

Question 21

what is a load

Answer 21

any component that consumes electrical energy and converts it into another form of energy, such as light, heat, or motion

Question 22

what is electrical energy

Answer 22

a form of energy resulting from the flow of charged particles, like electrons, through a conductor

Question 23

what is a potential difference

Answer 23

the energy used between two points in a circuit

Question 24

what is potential energy

Answer 24

stored energy that an object possesses due to its position, condition, or configuration

Question 25

what is a conductor

Answer 25

A conductor is a material that readily allows electrical current to flow through it

Question 26

what is an insulator

Answer 26

An insulator is a material that does not allow electrical current to flow through it, like rubber or plastic.

Question 27

what is an example of a conductor

Answer 27

metal

Question 28

what is an example of insulation

Answer 28

rubber or plastic

Question 29

what is a series circuit

Answer 29

components are connected in a single loop, creating one path for the current to flow

Question 30

what is a parallel circuit

Answer 30

components are connected in multiple branches, providing multiple paths for the current to flow

Question 31

what is conduction

Answer 31

Heat transfer through direct contact between objects like touching a hot stove

Question 32

what is convection

Answer 32

Heat transfer through the movement of fluids (liquids or gases) eg. boiling water

Question 33

what is radiation

Answer 33

Heat transfer through electromagnetic waves such as heat from a fire

Question 34

how does heat transfer

Answer 34

heat transfers through conduction, convection, and radiation

Question 35

describe a circuit

Answer 35

a closed loop pathway that allows electric current to flow