Science of Sound and Light

What is sound energy?

• Sound energy is a form of energy produced by heat.

• Sound energy is a form of energy produced by light waves.

• Sound energy is a form of energy produced by vibrating objects and transmitted through a medium.

• Sound energy is a form of energy produced by chemical reactions.

What are sound waves?

• Particles that travel through a medium and can be detected by the human ear.

• Vibrations that travel through a medium and can be detected by the human ear.

• Pressure waves that can be detected by the human ear.

• Electromagnetic waves that can be detected by the human ear.

What is the difference between pitch and frequency?

• Pitch and frequency are the same thing.

• Pitch is the perceived frequency of a sound, while frequency is the actual number of cycles of a wave that occur in one second.

• Pitch is the actual number of cycles of a wave that occur in one second, while frequency is the perceived frequency of a sound.

• Pitch is the loudness of a sound, while frequency is the duration of the sound.

How does sound travel through different mediums?

• Sound travels through different mediums by emitting particles that carry the sound waves.

• Sound travels through different mediums by releasing energy in the form of light waves.

• Sound travels through different mediums by changing its frequency.

• Sound travels through different mediums by creating vibrations or waves that propagate through the medium.

What is the reflection of sound?

• The bending of sound waves around obstacles.

• The amplification of sound waves when they encounter a surface.

• Absorption of sound waves when they encounter a surface.

• Bouncing back of sound waves when they encounter a surface.

How does the reflection of sound help in hearing echoes?

• The reflection of sound waves distorts the quality of the echoes.

• The reflection of sound waves changes the pitch of the echoes.

• The reflection of sound waves amplifies the volume of the echoes.

• The reflection of sound waves allows us to hear echoes.

What is visible light?

• Visible light is a form of electromagnetic radiation that is visible to the human eye.

• Visible light is a form of radio waves that can be detected by a radio receiver.

• Visible light is a type of heat energy that can be felt by the human body.

• Visible light is a form of sound waves that can be heard by the human ear.

How does light travel?

• Sound waves

• Gravity waves

• Electromagnetic waves

• Radio waves

What is refraction of light?

• The scattering of light in all directions.

• The absorption of light by a material.

• The reflection of light off a surface.

• The bending of light as it passes from one medium to another due to the change in its speed.

How does refraction of light affect the bending of light rays?

• Refraction of light causes the scattering of light rays.

• Refraction of light causes the bending of light rays.

• Refraction of light causes the straightening of light rays.

• Refraction of light has no effect on the bending of light rays.