Electricity

Question 1

Name the 8 types of energy

Answer 1

Light, heat, kinetic, sound, chemical, nuclear, electrical, potential

Question 2

Can energy be destroyed or created

Answer 2

No, it can only turn into different types of energy

Question 3

What is an example of energy changes

Answer 3

Kettle: electrical→heat

Question 4

What type of charge does an electron have

Answer 4

Negative

Question 5

What type of charge does a neutron have

Answer 5

Neutral

Question 6

What type of charge does a proton have

Answer 6

Positive

Question 7

What happens when two objects of the same charge interact

Answer 7

They repel against each other

Question 8

What happens when two objects of the opposite charge interact

Answer 8

They attracts as opposites attract

Question 9

What are examples of static electricity happening

Answer 9

Balloon rubbing on someone’s head
Feet rubbing against s trampoline
Trolley wheels rubbing off the floor

Question 10

What is electrical current

Answer 10

The flow of electrons

Question 11

What type of particles travel round a material for an electrical current to be produced

Answer 11

Electrons

Question 12

What side of a battery does the electrical current move away from

Answer 12

The negative side

Question 13

Why does the electrical current move away from the negative side of a battery

Answer 13

Because a negative and a negative don’t go together

Question 14

What device is used to measure current

Answer 14

Ammeter

Question 15

What is the unit of measurement for electrical current

Answer 15

Ampere/Amp (A)

Question 16

What is voltage

Answer 16

The energy per electron

Question 17

What device is used to measure voltage

Answer 17

Voltmeter

Question 18

What is the unit of measurement for voltage

Answer 18

Volt (V)

Question 19

What is a series circuit

Answer 19

A circuit whee thee is only one path for electrons to flow around

Question 20

What is a parallel circuit

Answer 20

A circuit where there is more than one path for electrons to flow around

Question 21

What happens to current in a series circuit

Answer 21

It is the same at all points

Question 22

What happens to current in a parallel circuit

Answer 22

The total current is the values in each point added together

Question 23

What happens to voltage in a series circuit

Answer 23

The voltage across each component adds up to the supply voltage

Question 24

What happens to voltage in a parallel circuit

Answer 24

The voltage is the same at all points

Question 25

What is resistance in a circuit

Answer 25

a measure of the opposition to current flow in an electrical circuit

Question 26

What does resistance do to the current in a circuit

Answer 26

As the resistance increases, the current decreases

Question 27

What is the word equation for Current

Answer 27

I = V over R

Question 28

What is the word equation for Resistance

Answer 28

R = v over i

Question 29

What is the word equation for voltage

Answer 29

V = IR

Question 30

What device is used to measure resistance

Answer 30

Ohmmeter

Question 31

What is the unit of measurement for resistance?

Answer 31

Ohms (omega sign)

Question 32

What is an electrical conductor?

Answer 32

Something that lets electricity pass through it

Question 33

What is an example of electrical conductors?

Answer 33

Any metal + graphite

Question 34

What does an insulator do?

Answer 34

Does not let electricity pass through

Question 35

What are some examples of an insulator?

Answer 35

Wood, rubber, glass, paper, plastic

Question 36

What two things strengthen an electromagnet?

Answer 36

Increasing the number of coils
Increasing the voltage passing through

Question 37

What does an electromagnet do?

Answer 37

Moves things such at doorknobs, automatic doors and computer hard drives