Longitudinal Waves

Q.

Define Longitudinal Wave.

Q.

Why is a sound wave called a longitudinal wave?

Q.

Plucking a guitar string is an example of transverse wave of string vibration, while sound produced by it gives you a longitudinal wave in the air.

1. True

2. False

Q. A medium can carry a longitudinal wave because it has the property of ___ .

1. elasticity
2. mass
3. density
4. volume

Q.

What is the difference between transverse and longitudinal wave ?

Explain with examples.

And show a diagram.

Q.

What is the term used for the distance between two consecutive compressions or rarefactions called?

Q. Which of the following is a longitudinal wave?

1. Spring oscillations
2. Light wave
3. Vibrations on a guitar string
4. Glass vibrations

Q.

Due to vibration of particles of the medium _____.

1. kinetic energy increases

2. interchange of kinetic and potential energy takes place

3. potential energy increases

4. kinetic energy becomes zero after some time

Q.

Sound waves are always longitudinal in nature.

1. True

2. False

Q. What is the nature of sound waves travelling through air?

1. Longitudinal
2. Can be longitudinal or transverse
3. Electromagnetic
4. Transverse

Q. In which of the following media sound can travel as a transverse wave?

1. Liquids
2. Gases
3. Solids
4. Liquids and gases

Q.

Sound travels through rocks in the form of

1. Non-elastic waves

2. Only transverse and elastic waves

3. Only longitudinal and elastic waves

4. Both longitudinal, transverse and elastic waves

Q. Can sound travel as transverse waves?

Q. Sound waves are a sequence of compressions and rarefactions.

1. True
2. False

Q. Sound can travel through solids and liquids, but not through gases.

1. False
2. True

Q.

Define longitudinal waves.

Q.

What are compression and rarefaction in longitudinal waves?

Q.

What type of waves is an electro magnetic wave?(transverse or longitudinal wave)

Q.

What is amplitude and vacuum.

Q. A wave in which particles oscillate parallel to the direction of wave propagation is known as:

1. transverse wave
2. longitudinal wave
3. non-mechanical wave
4. electromagnetic wave

Q. When wave motion is parallel to particle motion, then that type of wave is called as ___

1. longitudinal waves
2. transverse waves
3. noise
4. disturbance

Q.

Sound can travel through :

(a) gases only (b) solids only (c) liquids only (d) solids, liquids and gases

Q. why sound cannot travel without a medium?

Q.

mechanical waves lose energy as they travel through a medium.justify

Q.

If the density of air molecules is more in the given region, then ______.

1. it is a rarefaction which is formed

2. it is a crest which is formed

3. it is a compression which is formed

4. it is a trough which is formed

Q. The following image shows a wave propagating through a spring.

This is an example of a ___.

1. longitudinal wave
2. transverse wave
3. electromagnetic wave
4. non-mechanical wave

Q.

What is a longitudinal wave ?

Q. Which of the following waves can be polarized (i) Heat waves (ii) Sound waves? Give reason to support your answer.

Q.

Sound travels as a transverse wave.

1. True
2. False

Q. A longitudinal wave is propagating in water as shown below.
What can be the possible direction of vibration of water molecules?

1. 
2. 
3. 
4.