T Level Physics L2

Ohm’s Law

Physics - Starter questions

1

What is the unit of Potential Difference?

2

What is the circuit symbol for a voltmeter?

3

Does a higher resistance lower the current or increase the current?

4

Calculate 200 / 5

5

What is the formula linking Charge, Current and Time?

6

If 5A flows for 1 minute, how much Charge is Transferred?

Physics - starter questions

1

The Volt

2

3

A higher Resistance decreases Current flow

4

40

5

Charge (C) = Current (A) x Time (s)

6

5A x 60s (60 seconds in 1 minute) = 300C

Green pen your answers

Hotspot

Which component is the cell?

Categorize

Options (6)

Categorise the following circuits into series and parallel

Series

Parallel

Ohm’s Law

Ohm’s Law

Ohm’s Law

KO 2

Multiple Choice

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

• 60Ω

• 120Ω

• 180Ω

• 240Ω

Multiple Choice

A circuit contains a 1.5 volt battery and a lamp with a resistance of 3 ohms. Calculate the current.

• 0.5A

• 1A

• 1.5A

• 2A

Multiple Choice

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

• 5A

• 10A

• 15A

• 20A

Multiple Choice

How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of

resistance?

• 10V

• 50V

• 100V

• 150V

Multiple Choice

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

Multiple Choice

What is the unit of measure for current?

• ampere

• current

• voltage

• ohms

Multiple Choice

What unit of measure is for resistance?

• ohms

• ampere

• voltage

• watts

Multiple Choice

If there is a current of 2A and a resistance of 24 ohms, what voltage will there be?

• 26 V

• 48 V

• 12 V

• 22 V

Multiple Choice

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

Multiple Choice

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V
• 10 V
• 2.5 V
• 0.4 V

Multiple Choice

If the voltage is increased and the resistance stays the same, what will current do?

• Increase
• Decrease
• Stay the same
• X

Multiple Choice

If the voltage stays the same and resistance is increased, what will current do? 

• Increase
• Decrease
• Stay the same
• X

Multiple Choice

How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor

• 12 volts
• 24 volts
• 1.3333
• 48 volts

Multiple Choice

How many Volts would it take to push 1 Amp through a resistance of 1 Ohm

• 10 volts
• 1 volt
• 48 volts
• 5 volts

Open Ended

Explain how resistance occurs in a wire

Open Ended

Describe the term ohmic conductor

Ohm’s Law

KO 2

You have 50 minutes to complete SLOP
1.

No questions for the first 5 minutes

2.

Golden silence

3.

Answer all teacher feedback with a green pen

Draw

Draw the IV graph for an Ohmic conductor

Ohm’s Law

KO 2

Update the DPR