Worksheets5.3 Reflection of waves
Total questions: 10
Worksheet time: 7mins
Which quantity changes after the wave is being reflected?
Speed
Direction of propagation of wave
Frequency
Wavelength
Which comparison is correct about the reflected sound wave and the incident sound wave?
The speed of the incident wave
and the reflected wave is the
same
The angle of the incident wave is greater than the
angle of the reflected wave
The frequency of the incident
wave is less than the reflected
wave
The wavelength of the incident wave is shorter
than the reflected wave
A ship transmits an ultrasonic wave pulse to the seabed and receives an echo 0.12s later. The speed of the ultrasonic waves in sea water is 1500 m s–1 . What is the depth of the sea?
180
330
90m
360
Bright fringes produced on the white screen of ripple tank represent the wavefront for trough.
True
False
Direction of propagation of the wave is _____ to the wavefront.
parallel
perpendicular
same
circular
The phenomenon of reflected waves cause the angle of incidence equal to angle of reflection.
True
False
Choose the characteristics of waves that do not change after the phenomenon of reflection.
Wavelength
Direction of propagation
Speed
Frequency
Below are the example and applications of reflection of waves, except
Radio waves
Ultrasonic waves
water waves moving across shallow water
Echo
______ – the angle between the normal and the reflected ray.
Angle of incidence
Angle of reflection
Angle of coincidence
Angle of direction
The imaginary line perpendicular to a reflecting surface is called _____.
crooked line
parallel line
angular line
normal line
