Sound and Light Waves Practice Quiz

What is reflection in terms of wave behavior?

• Reflection is the bending of a wave as it passes through different mediums.

• Reflection is the bouncing back of a wave when it hits a barrier.

• Reflection is the absorption of a wave by a material.

• Reflection is the scattering of a wave in multiple directions.

What happens to a sound wave when it moves from a gas to a solid?

• It slows down.

• It speeds up.

• It remains the same.

• It gets absorbed.

What is refraction?

• Refraction is the bending of a wave as it passes at an angle from one medium to another.

• Refraction is the reflection of light when it hits a surface.

• Refraction is the absorption of light by a medium.

• Refraction is the scattering of light in different directions.

What happens to the speed of sound when it travels through different media?

• The speed of sound remains constant regardless of the medium.

• The speed of sound slows down when moving from gas to solid.

• The speed of sound changes depending on the medium; it generally speeds up when moving from gas to solid.

• The speed of sound is fastest in gases compared to solids.

What is the principle of superposition in wave theory?

• The principle of superposition states that waves can only exist independently without interaction.

• The principle of superposition states that when two or more waves overlap, the resulting wave is the sum of the individual waves.

• The principle of superposition states that waves can only travel in one direction at a time.

• The principle of superposition states that the speed of a wave is determined by its frequency and wavelength.

What color does an object appear if it absorbs all colors except yellow?

• Red

• Blue

• Green

• Yellow

Why do waves refract?

• Waves refract because they lose energy in a medium.

• Waves refract because they change direction due to a change in speed as they move from one medium to another.

• Waves refract because they are influenced by gravity.

• Waves refract because they are reflected off surfaces.

What is the speed of light in a vacuum?

• 299,792 kilometers per second (km/s)

• 150,000 kilometers per second (km/s)

• 300,000 kilometers per second (km/s)

• 1,000,000 kilometers per second (km/s)

How does the energy of electromagnetic waves relate to their frequency?

• Electromagnetic waves with higher frequencies have more energy than waves with lower frequencies.

• Electromagnetic waves with lower frequencies have more energy than waves with higher frequencies.

• The energy of electromagnetic waves is independent of their frequency.

• All electromagnetic waves have the same energy regardless of their frequency.

What causes the appearance of a broken stem in water?

• Reflection

• Refraction

• Diffraction

• Absorption