Torch parts

Torch parts

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about explaining what the different parts of a torch do.
Look at the torch you have been given, you can open it, examine the batteries and the inside.

Question 1Change answer

a) Explain how the batteries of the torch allow the torch to work or make it useful.

Question 1Change answer

b) Explain how the switch of the torch allows it to work or makes it useful.

Question 1Change answer

c) Explain how the reflective collar of the torch allows it to work or makes it useful.

Question 1Change answer

d) Explain how the bulb of the torch allows it to work or makes it useful.

Question 1Change answer

e) Explain how the plastic casing of the torch allows it to work or makes it useful.
Task administration: 
This task can be completed with pencil and paper or online with other equipment.
 
Equipment
You will need to supply students with a torch that can be taken apart and examined.
Level:
4
Curriculum info: 
Science, Knowledge, Physical World
Keywords: 
physics concepts, circuits, torches
Description of task: 
Students explain how the parts of a torch help it work.
Making Better Sense: 
Batteries (torches)
Answers/responses: 

a)
b)
c)
d)
e)

Batteries: Supplies (chemical) energy.
Switch: Allows the circuit to be completed to allow the torch to work (or reverse of).
Reflective collar: Allows the light to be directed/focussed/form a beam.
Bulb: Converts the (chemical) energy of the battery into light (energy).
Plastic casing: Holds the components together.