Activity:Tapping the table:
Sit to one end of the table with your ear against it. Ask any of your family
members to scratch/tap the other end of the table. Repeat the experiment
while sitting up. Record your observations and inference.
Observations:
1. When your ear is against the table:________________________________________.
2. When You are sitting up:________________________________________________.
Inference: ______________________________________________________________.
Answers & Comments
Answer:
Answer:
a loud sound (higher amplitude) is heard
a softer sound (lesser amplitude) is heard
inference: a large surface area (table) increases the amplitude of sound.