Revision NotesExam QuestionsPast Papers
GCSEPhysics: Combined ScienceOCR GatewayExam Questions3. Electricity3.1 Static & Charge

Static & Charge (OCR Gateway GCSE Physics: Combined Science)

Exam Questions

44 mins8 questions

Select a question set to download for
3.1 Static & Charge

Select an answer set to view for
3.1 Static & Charge

Easy
Medium
1a2 marks

A student uses four electrical appliances for different lengths of time.

Look at the table.

Appliance Power (W) Time used (hours)
Hair dryer 1500 0.3
TV 100 5
Toaster 2000 0.2
Light blub 10 12



i)
Which appliance uses the most energy?

 [1]

ii)
Which appliance uses the least energy?

[1]

How did you do?

1b2 marks

Here are three different components and their use in the home.

Match the component to its correct use.

One has been done for you.

q16b-paper1-june2018-ocr-gcse-physics

How did you do?

1c4 marks

A charge of 44 000 C flows through a light bulb. The potential difference is 230 V.

Calculate the energy transferred.

Use the equation: Charge = Energy ÷ Potential difference

Record your answer to 2 significant figures.

Answer = ...................................................... J 

How did you do?

1d3 marks

i)

A student has completed her homework on static electricity.


Look at her homework.
1     Static charge only builds up on insulators.2     Opposite charges attract.3     Like charges repel.4     Only positive charges can move.

Identify the student’s mistake and correct it.


[2]
ii)
When charges move, a current flows.
q16dii-paper1-june2018-ocr-gcse-physics

Write down the current flowing at point Y in the circuit.

Answer = .......................................................A [1]

How did you do?

Did this page help you?

1a3 marks

This question is about electrostatic charges.

A charged rod is brought towards a gentle stream of water from a tap.

q18-paper3-june2018-ocr-gcse-physics

Explain how the charged rod affects the stream of water.

How did you do?

1b6 marks

i)
Write down the conditions needed for charge to flow through a conductor.

[2]

ii)
Calculate the charge that flows past a point in a circuit with a 5.0 A current for five minutes.

Answer = ......................... C [4]

How did you do?

Did this page help you?

2a4 marks

A student investigates static electricity using a plastic ruler.

i)
Explain in terms of electrons why the plastic ruler is not normally charged.
[2]



ii)
Explain in terms of electrons why the ruler becomes charged when the student rubs it with a cloth.

[2]

How did you do?

2b4 marks

The diagram shows the electric field between two charges, A and B.

q16b-paper3-oct-nov2020-ocr-gcse-physics

i)
State the charges of A and B.
Use the diagram to explain your answer.

[3]

ii)
Describe one similarity between the electric field line diagram and a magnetic field line diagram.


[1]

How did you do?

2c3 marks

Calculate the charge when 200 J of energy is transferred with a potential difference of 40 V.

Use the equation: energy transferred = charge × potential difference

 

Charge = ..................................................... C 

How did you do?

Did this page help you?

3a6 marks

A student rubs a balloon against a scarf.

q17-paper3-specimen-ocr-gcse-physics

Describe how the balloon becomes charged.

Suggest how you could show that the balloon is charged.

What would you expect to see and why?

How did you do?

3b3 marks

Current is the rate of flow of electrical charge in a circuit.

A current of 40 mA transfers a charge of 3.6 C.

Calculate the time to transfer this charge.

Show your working.

Answer = ......................... seconds 

How did you do?

Did this page help you?