IB Middle Years Programme (MYP) · Sciences

Electricity and circuits: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Electricity and circuits.

10 questions23 marksFree, no account

Question 1

1 mark

In a simple series circuit, if one bulb blows out, what happens to the other bulbs in the circuit?

Question 2

1 mark

Study the circuit diagram below. What will happen to the remaining bulbs if bulb B2 is removed from its socket in a series circuit containing three identical bulbs?

Question 3

1 mark

Three identical resistors are connected in a parallel configuration across a DC voltage source. If one of the resistors suddenly develops an internal open circuit, how does the total current drawn from the voltage source change?

Question 4

1 mark

What is the primary function of a switch in an electrical circuit?

Question 5

1 mark

Which of the following materials is generally considered a good electrical conductor?

Question 6

2 marks

What type of material allows electrical current to flow through it easily?

Write your answer out first, then check it against the worked solution.

Question 7

4 marks

A current of \(2 \ \text{A}\) flows through a circuit component with a resistance of \(5 \ \Omega\). What is the potential difference across the component?

Write your answer out first, then check it against the worked solution.

Question 8

2 marks

Which component in a simple circuit is used to safely open or close the path of the current?

Write your answer out first, then check it against the worked solution.

Question 9

4 marks

Part (a) What is the main function of a switch in an electric circuit?
Part (b) Describe what happens to the flow of current when the switch is opened.

Write your answer out first, then check it against the worked solution.

Question 10

6 marks

Part (a) Compare series circuits and parallel circuits in terms of the number of current pathways.
Part (b) Two resistors of \(5\, \Omega\) and \(10\, \Omega\) are connected in series. Calculate the total equivalent resistance.
Part (c) If these same two resistors are connected in parallel, calculate their equivalent resistance.

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.