P5 August Quiztopia 1.1 31/07/23

Hi students! This quiztopia aims to test your understanding of the topic of electricity. Do attempt this quiz without leaving ANY blanks, and only attempt it once. No bubbles will be awarded for any blanks, or multiple attempts! Are you ready for the quiz?

• Yes, ever ready!

• Got it, let's go!

• I'm ready to get full marks!

• Electricity is my favourite topic!

Use the image to answer questions 1 and 2.

Which of the following circuit(s) is/are a representation of bulbs in a parallel arrangement?

• (1) A only

• (2) A and C only

• (3) B and D only

• (4) A, B and C only

The image is the same as shown in Question 1.

In which of the circuits would the bulbs glow the brightest?

• (1) A

• (2) B

• (3) C

• (4) D

More batteries are added to region X on the wire (highlighted in red) in the circuit shown.

Assuming all the parts are arranged correctly in the circuit, which of the following situations will not occur?

• (1) Bulbs in the circuit may fuse.

• (2) Bulbs arranged in series will become dimmer.

• (3) Bulbs arranged in series will become brighter.

• (4) Bulbs arranged in parallel will become brighter.

On the roads, the colours of a traffic light change in a cycle from green to yellow to red, to control the flow of traffic. The diagram in the image shows two circuits with three different coloured bulbs that correspond to the traffic light colours.

Which circuit is more suitable to be used in a traffic light? Explain your answer. [2]