Very short answer type questions (1 mark each)
1.What travels from the source of sound to the listener's ear and not the air?
2. Which physical quantity is carried by a wave?
3. Which of the following are mechanical waves?
(a) sound wave (b) light wave (c) radio wave (d) water wave
4. What kind of waves are the sound waves?
5. Can sound waves propagate through
6. Name a wave that can travel through vacuum.
7. Show compressions and rarefactions in a longitudinal wave.
8. Why do water waves die out after some time?
9. Two person talk to each other on the surface of the moon. Will they be able to hear each other?
10. How is the wave velocity related to wavelength and frequency?
11. Expand the term SONAR.
Short answer type questions (2 marks each)
12. What is an elastic wave?
13. What is the main difference between a mechanical wave and a non mechanical wave?
14. Write down two differences between a longitudinal and a transverse wave.
15. Draw the displacement-time graph for a wave created when a stone is thrown into a pond.
16. Define the amplitude of a wave. Show it graphically. What does the amplitude of a wave describe?
17. Show the wavelength of a wave with the help of a diagram.
18. What is the audible range? Name an animal which plays games by producing ultrasound.
Short answer type questions (3 marks each)
19. How is a longitudinal wave represented graphically?
20. The displacement-distance graph of a wave pulse at t=0 s is shown here.
1.What travels from the source of sound to the listener's ear and not the air?
2. Which physical quantity is carried by a wave?
3. Which of the following are mechanical waves?
(a) sound wave (b) light wave (c) radio wave (d) water wave
4. What kind of waves are the sound waves?
5. Can sound waves propagate through
6. Name a wave that can travel through vacuum.
7. Show compressions and rarefactions in a longitudinal wave.
8. Why do water waves die out after some time?
9. Two person talk to each other on the surface of the moon. Will they be able to hear each other?
10. How is the wave velocity related to wavelength and frequency?
11. Expand the term SONAR.
Short answer type questions (2 marks each)
12. What is an elastic wave?
13. What is the main difference between a mechanical wave and a non mechanical wave?
14. Write down two differences between a longitudinal and a transverse wave.
15. Draw the displacement-time graph for a wave created when a stone is thrown into a pond.
16. Define the amplitude of a wave. Show it graphically. What does the amplitude of a wave describe?
17. Show the wavelength of a wave with the help of a diagram.
18. What is the audible range? Name an animal which plays games by producing ultrasound.
Short answer type questions (3 marks each)
19. How is a longitudinal wave represented graphically?
20. The displacement-distance graph of a wave pulse at t=0 s is shown here.
