Electricity (McLean)

Question 1

what subatomic particle can move freely

Answer 1

electrons

Question 2

What happens to two opposite charges

Answer 2

They attract

Question 3

What happens to two of the same charges

Answer 3

They repel

Question 4

How does lightning happen

Answer 4

Charge is created from electrons rubbing against clouds, causing friction, rapid discharge of the electrons can then happen at high temperatures

Question 5

Series circuit

Answer 5

a circuit with one pathway in which components are connected end to end

Question 6

Parallel circuit

Answer 6

a circuit that has multiple branches with components that are on, and has junctions that connect the different branches

Question 7

How is current measured?

Answer 7

Amps (A) with an ammeter

Question 8

What is current?

Answer 8

the flow of negatively charged electrons through wires

Question 9

How is voltage measured?

Answer 9

Volts (V) with a voltmeter

Question 10

Is current higher in a series or parallel circuit?

Answer 10

Parallel circuit

Question 11

Relationship with pathways and the flow of the electrons

Answer 11

The more pathways, the faster the flow of electrons

Question 12

What do switches in a series circuit do?

Answer 12

Turn everything off

Question 13

What do switches in a parallel circuit do?

Answer 13

Can turn off individual branches

Question 14

How is resistance measured?

Answer 14

Ohms (Ω) with a multimeter

Question 15

Equation for resistance

Answer 15

Ohms (Ω)= Volts (V) ÷ Amps (A)

Question 16

Relationship with the area of a conductor and resistance

Answer 16

Twice the area - half the resistance

Question 17

Relationship with the length of a conductor and resistance

Answer 17

Twice the length - twice the resistance

Question 18

Symbol for a resistor

Answer 18

A rectangle in-between two lines

Question 19

symbol for battery

Answer 19

Two cells with an ellipsis between, all between two lines

Question 20

Symbol for a cell

Answer 20

one line with a longer one on the right hand side and a gap in between, all between two lines

Question 21

Symbol for a buzzer

Answer 21

Two lines with a gap, where at the end of the both lines there are vertical lines leading up to an upside down semi-circle

Question 22

Symbol for lightbulb/lamp

Answer 22

Two lines with a circle and an X in the middle

Question 23

Symbol for ammeter

Answer 23

Two lines with a circle and an A in the middle

Question 24

Symbol for motor

Answer 24

Two lines with a circle and an M in the middle

Question 25

Symbol for a voltmeter

Answer 25

Two lines with a circle and a V in the middle

Question 26

How is current affected by the type of circuit

Answer 26

Current is halved when in a parallel compared to series since parallel has two (or more) branches to split the current into

Question 27

How is voltage affected by the type of circuit

Answer 27

Voltage stays the same in both circuits since there is the same voltage in each electron, but voltage can be divided up by multiple lightbulbs