Unit 12: Waves

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Question 1 of 10 0% read

1. Which factor does not affect wave speed?

A Medium

B Elasticity

C Density

D Amplitude

2. Which property of waves depends on energy?

A Frequency

B Amplitude

C Wavelength

D Time period

3. The maximum displacement of a vibrating particle from its mean position is called:

A Wavelength

B Frequency

C Amplitude

D Velocity

4. Reflection of waves occurs when waves:

A Change medium

B Hit a barrier

C Increase frequency

D Decrease speed

5. The time taken by a wave to complete one vibration is called:

A Frequency

B Amplitude

C Time period

D Wavelength

6. The unit of wave speed is:

A m

B m/s

C Hz

D s

7. Mechanical waves require:

A Vacuum

B Medium

C Electric field

D Magnetic field

8. Which wave phenomenon explains bending of waves around obstacles?

A Reflection

B Refraction

C Diffraction

D Interference

9. Which of the following waves has both transverse and longitudinal properties?

A Sound wave

B Light wave

C Water surface wave

D Radio wave

10. Interference occurs when:

A Two waves overlap

B Wave changes speed

C Wave reflects

D Wave refracts

Unit 12: Waves

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