imed by making an improvised telephone.
Learning Task 2
Activity Title: Makeshift Telephone
Materials:
2 disposable cups or empty clean tin cans long string or thread
2 matchsticks
Procedures:

1. Punch a hole on each end of empty tin cans. Ask help from an elder
member of the family for your safety.

2. Using the long string or thread, make a knot to the matchsticks at the
outside part of the empty tin cans or disposable cups.

3. Try talking on the other end while one of your family members will listen
on the other end with the string tightly pulled. Did he/she hear a sound?

Copy and draw in the box the makeshift telephone you have made.
Label
the materials you have used. Do this on your answer sheet.
Makeshift telephone illustration



Questions:
Answer the following questions on your answer sheet.
1. What happened to the sound you produced from one of the empty
cans of your makeshift telephone?

2. Did the sound you produce travel from one end to the other?

3. Try to shorten the long string and talk once again with one of your family
members, how did the length of the string affect the quality of sound
produced?

4. Try to use different types and thickness of strings, what happened to the
sound produced if you used different types and thickness of string?

5. What components or material/s of your gadget affect the transfer of
sounds you produced in your makeshift telephone?

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