Waves

Front

What is reflection in the context of waves?

Back

Reflection is the bouncing back of a wave when it hits a barrier or a different medium.

Front

What is refraction?

Back

Refraction is the bending of a wave as it passes from one medium to another due to a change in speed.

Front

What is diffraction?

Back

Diffraction is the spreading out of waves when they pass through a narrow opening or around obstacles.

Front

What is a transverse wave?

Back

A transverse wave is a wave in which the motion of the medium is perpendicular to the direction of the wave.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a wave in which the motion of the medium is parallel to the direction of the wave.

Front

What happens to light when it passes through a convex lens?

Back

Light rays converge when they pass through a convex lens, focusing the light to a point.

Front

What is absorption in the context of waves?

Back

Absorption is the process by which a wave's energy is taken up by the medium it travels through.

Front

What is the difference between reflection and refraction?

Back

Reflection involves bouncing back of waves, while refraction involves bending of waves as they change mediums.

Front

Can sound waves be reflected?

Back

Yes, sound waves can be reflected, which is why you can hear echoes.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second.