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5G-Electric Circuit - Parallel Circuits

Last updated over 7 years ago

10 questions

Note from the author:

Electrical Circuit

In this lesson, you will learn how the arrangement of the light bulbs affect the brighness.

1

Draw a circuit diagram, consisting of 2 batteries, 2 light bulbs arranged in series as well as a switch below.

1

Predict: In the diagram below, which light bulbs, A or B, will be brighter?

1

Observe:
Open the "DC Circuit Construction Kit" and test out your prediction.
Is your prediction correct?

1

Explain: What can we conclude from the experiment above?

Open up "DC Circuit Construction Kit".
Set up the circuit as indicated in the diagram below. 

1

Close all the switches. What do you observe?

1

Open S3 now. Which light bulb(s) remain lighted?
Explain you answer.

1

Close all the switches and open only S4. Which light bulb(s) remain lighted?
Explain your answer.

1

Close all switches and open only S1. Which light bulb(s) remained lighted?
Explain your answer.

1

Challenge 1 :
A toy house needs two bulbs to light up at the same time when a switch is turned on.
Draw a circuit diagram to show how the bulbs should be connected. The battery has been drawn for you.

 
Observe: 
Open the "DC Circuit Construction Kit" and test out your drawing.
Does your drawing works? If not, go back and redo your drawing again. 

1

Challenge 2 :
Another toy house with two rooms needs a bulb to light up in each room. Draw a circuit diagram to show how the bulb in each room can be switched on or off without affecting the bulb in the other room.

 
Open the "DC Circuit Construction Kit" and test out your drawing.
Does your drawing works? If not, go back and redo your drawing again. 