Brainiac http://www.youtube.com/watch?v=-n1pSHzdahc

Series circuits13 April 2023

The cards have keywords with more scientific definitions, can you match them

up?

Resistance

Current

Voltage

Series

Parallel

The opposition to the flow of current

The rate of flow of charge

How much energy each charge carries

All components are in a single branch

Components are in multiple branches

Fo

r p

rin

tin

g

Ohms

Amps

Volts

Ohms

Amps

Volts

Ohms

Amps

Volts

Fo

r p

rin

tin

g

How did you do?

Aims

• State the equations of current and voltage in a series circuit

• Describe the changes in current and voltage in a series circuit

• Define current and voltage

Current

Wh

at if

we

app

ly t

he

bra

kes?

For a series circuit:

321 IIII

The current is the same throughout the circuit

Current is the rate of flow of charge

t

QI

Current

The number of Coulombs flowing past a point in the circuit every second.

I = Q/t

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A

I’m counting how many

coulombs of electrons go

past me every second

1 Amp = 1 coulomb per second

Interview at Eltham College at 1:20 pm

Freeze-thaw weathering breaks up rocks into smaller pieces

Current is the same everywhere in a series circuit

The total voltage is the sum of the individual voltages

321 IIII

321 VVVV

Voltage

For a series circuit:

321 VVVV

The total voltage is the sum of the individual voltages

Voltage(emf)☺

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☺V

I’m checking the difference in energy (per

coulomb) between the 2 red arrows

1 Volt = 1 Joule per coulomb

Voltage (p.d.)☺

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V

I’m checking the difference in energy (per

coulomb) before and after the lamp

1 Volt = 1 Joule per coulomb

Voltage is the energy transferred per charge

Q

WV

Current is the same everywhere in a series circuit

The total voltage is the sum of the individual voltages

321 IIII

321 VVVV

Passport for exit I have learned:

123

Passport for exit I have learned:

123