Wave Reflection and Transmission
Physics ⇒ Waves and Sound
Wave Reflection and Transmission starts at 8 and continues till grade 12.
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See sample questions for grade 10
A sound wave strikes a boundary between two media. If most of the wave energy is reflected, what can you infer about the difference in the properties of the two media?
A wave pulse is sent down a rope attached to a wall. Describe what happens when the pulse reaches the wall.
A wave pulse travels from a thin rope to a thick rope. What happens to the transmitted and reflected pulses?
A wave traveling along a rope meets a fixed end. What happens to the wave?
A student claps their hands in front of a large wall and hears an echo 2 seconds later. If the speed of sound is 340 m/s, how far is the wall from the student?
A light wave strikes a glass surface at an angle of 60° to the normal. If the angle of reflection is measured to be 60°, what law does this observation confirm?
A sound wave with a frequency of 500 Hz travels from air (speed = 340 m/s) into a solid where the speed of sound is 1700 m/s. Calculate the wavelength of the sound in the solid.
A student observes that when a wave pulse reaches a boundary between two ropes of different densities, part of the energy is reflected and part is transmitted. Explain why not all the energy is reflected or transmitted.
A sound wave travels from air into a brick wall. What happens to most of the wave energy? (1) It is reflected (2) It is transmitted (3) It is absorbed (4) It is amplified
If a wave passes from a less dense to a more dense medium, what happens to the reflected wave? (1) It is inverted (2) It is not inverted (3) It disappears (4) It speeds up
When a sound wave passes from air into water, which of the following properties changes? (1) Frequency (2) Wavelength (3) Speed (4) Amplitude
Which of the following best describes transmission of a wave? (1) The wave bounces back (2) The wave passes through a medium or boundary (3) The wave is absorbed (4) The wave is destroyed
Fill in the blank: The ______ is the angle between the incident wave and the normal to the surface.
Fill in the blank: The ______ of a wave remains unchanged when it passes from one medium to another.
Fill in the blank: The law of reflection states that the angle of incidence is ______ to the angle of reflection.
Fill in the blank: The normal is a line drawn ______ to the surface at the point where the wave strikes.
True or False: The amplitude of a reflected wave is always equal to the amplitude of the incident wave.
True or False: The angle of incidence is always equal to the angle of reflection for a wave reflecting off a flat surface.
True or False: The direction of a wave always changes when it is reflected.
True or False: The law of reflection applies to all types of waves, including sound, light, and water waves.
