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 9
A sound wave hits a boundary and some of its energy is absorbed, some is reflected, and some is transmitted. What is this process called?
A wave pulse travels down a rope and reflects off a fixed end. What happens to the pulse?
A wave pulse travels down a rope and reflects off a free end. What happens to the pulse?
A wave pulse travels from a light string to a heavy string. What happens to the reflected pulse?
A wave travels from air into water. What happens to part of the wave at the boundary?
Describe what happens to a wave when it is transmitted into a medium with a lower speed.
Describe what happens to the amplitude of a wave when some energy is absorbed at a boundary.
A sound wave travels from air (speed = 340 m/s) into water (speed = 1500 m/s). If the frequency is 500 Hz, what is the wavelength in water?
Which of the following best describes transmission of a wave?
(1) The wave bounces back from a surface
(2) The wave passes through a medium or boundary
(3) The wave is absorbed by the medium
(4) The wave is destroyed at the boundary
Which of the following best describes what happens when a wave encounters a boundary between two media?
(1) Only reflection occurs
(2) Only transmission occurs
(3) Both reflection and transmission can occur
(4) The wave disappears
Which of the following is most likely to reflect sound waves?
(1) Thick curtain
(2) Concrete wall
(3) Open window
(4) Carpeted floor
Which of the following is NOT a factor that affects the reflection of sound?
(1) Surface material
(2) Surface shape
(3) Color of the surface
(4) Angle of incidence
Fill in the blank: The ________ is the angle between the incident wave and the normal to the surface.
Fill in the blank: The ________ is the angle between the reflected wave and the normal.
Fill in the blank: The line drawn perpendicular to the surface at the point where the wave strikes is called the ________.
Fill in the blank: The process by which a wave passes through a boundary into a new medium is called ________.
True or False: All of the energy of a wave is always reflected at a boundary between two media.
True or False: The amount of wave energy reflected depends on the difference in properties between the two media.
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 angle of transmission is always equal to the angle of incidence.
