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 8
A light wave strikes a glass window at an angle. Some of the light passes through, and some bounces back. What is this an example of?
A sound wave travels from air into a brick wall. What happens to most of the wave's energy?
A wave travels from medium A to medium B. If medium B is denser, what happens to the speed of the wave?
Describe what happens to a sound wave when it hits a soft, thick curtain.
A light wave strikes a glass window at an angle. Some of the light passes through, and some bounces back. What is this an example of?
A sound wave travels from air into a brick wall. What happens to most of the wave's energy?
A student shouts towards a cliff and hears an echo 2 seconds later. What phenomenon is responsible for the echo?
Describe what happens to a sound wave when it hits a soft, thick curtain.
Which of the following best describes the normal? (1) A line parallel to the surface (2) A line perpendicular to the surface (3) A line at 45° to the surface (4) A line along the wave direction
Which of the following best describes transmission of a wave? (1) The wave is absorbed by the medium (2) The wave passes through the medium (3) The wave bounces back from the medium (4) The wave disappears
Which of the following is an example of transmission? (1) Hearing someone through a closed door (2) Hearing an echo (3) Seeing your reflection in a mirror (4) Sound bouncing off a wall
Which of the following is an example of wave transmission? (1) An echo (2) Light passing through glass (3) Sound bouncing off a canyon wall (4) A shadow forming behind an object
Fill in the blank: The angle between the incident wave and the normal is called the angle of ________.
Fill in the blank: The angle of reflection is measured from the ______ to the reflected wave.
Fill in the blank: The bouncing back of a wave from a surface is called ________.
Fill in the blank: When a wave passes from one medium to another, it is called ________.
True or False: A wave can be both reflected and transmitted at the same boundary.
True or False: All of the energy of a wave is always reflected at a boundary.
True or False: The angle of incidence is measured from the surface of the barrier.
True or False: The law of reflection applies to both sound and light waves.
