Post on 20-Jul-2020
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Science Investigation
Year 6
Electricity
Name: _______________________________ Class: _____________
School: ______________________________ Date: ______________
(2 marks)
A. The two diagrams below show a simple circuit with a switch.
The bulbs in Diagram 1 and Diagram2 are not working.
Explain why.
Diagram 1: ______________________________________________________
Diagram 2: ______________________________________________________
Diagram 1 Diagram 2
B. The diagram below shows a switch in a torch.
In your group, discuss how this switch works.
1. In your own words, explain how this switch works. ______________________________________________________________________________________________________________________
(2 marks)
Battery Metal spring
Metal switch contacts Slide switch
Plastic casing Sealing ring
Lamp contact
Lamp filament
Reflector
ON OFF OFF ON
Total Mark:
20
Percentage:
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(1 mark)
(1 mark)
C. Use the materials provided and follow the teacher’s instructions.
Look at switch A and switch B in the diagrams below.
Build two circuits using switch A in circuit 1 and switch B in circuit 2.
switch A switch B
1. What do you notice in circuit 1?
___________________________________________________________
2. What do you notice in circuit 2?
___________________________________________________________
(2 marks)
3. John needs an alarm to alert him every time someone steps on the front door mat. If he places a switch under the carpet, the alarm would switch on when someone steps on the carpet!
A) Underline the correct answer.
(i) What type of switch would John use? Switch A / Switch B
(ii) Complete the following sentence:
Switch _____ would be more suitable because _________________________
____________________________________________________________
Switch A Switch B
(1 mark)
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D. The diagram below shows a circuit.
(A) (B)
(C)
(D)
End of Investigation
(4 marks)
1. Name the components as labelled in the circuit diagram above.
A) ____________________
B) ____________________
C) ____________________
D) ____________________ (4 marks)
2. Underline the correct answer.
Will electricity flow through the circuit? Yes / No. (1 mark)
3. Give a reason for your answer.
______________________________________________________________
______________________________________________________________
(2 marks)
4. In the box below draw a circuit (using pictures or symbols) to show how a buzzer works. Mark clearly the switch, wires, buzzer and battery.
Total: 20 marks