9. Complete Activity 10.9 (Page 119).
• Take a slinky as shown below.
• Ask a friend to hold one of its ends. You hold the other end and move away from your friend. Now you release the slinky.
• What happened?
• How did the slinky acquire energy when stretched?
• Would the slinky acquire energy when it is compressed?
Answer:
Aim: To stetch the slinky and then release it and conclude based on the observations.
Materials required: Slinky.
Procedure:
(i) The slinky should be held at one end. While holding it fixed at one end, the other end should be pulled.
(ii) Then the slinky should be released. The observations are noted.
(iii) The activity is repeated by compressing the slinky.
Observations:
The slinky oscillates back and forth in both cases.
Conclusions:
- The slinky acquires potential energy when stretched/compressed due to the work done to deform its coils.
- When it is released, it oscillates because the potential energy gets converted into kinetic energy back and forth.
“• Take a slinky as shown below.
• Ask a friend to hold one of its ends. You hold the other end and move away from your friend. Now you release the slinky.
• What happened?
• How did the slinky acquire energy when stretched?
• Would the slinky acquire energy when it is compressed?” – Solved.
Related Links:
Solution to Activity 10.1
Solution to Activity 10.2
Solution to Activity 10.3
Solution to Activity 10.4
Solution to Activity 10.5
Solution to Activity 10.6
Solution to Activity 10.7
Solution to Activity 10.8
Solution to Activity 10.9
Solution to Activity 10.10
Solution to Activity 10.11
Solution to Activity 10.12
Solution to Activity 10.13
Solution to Activity 10.14
Solution to Activity 10.15
Solution to Activity 10.16
Solution to Activity 10.17
Solutions to Chapter 10 Work and Energy
