Sound and Light Quiz

What is the definition of frequency in terms of sound waves?

• The amount of energy that flows through a certain area

• The number of times per second a sound wave repeats itself

• Human perception of sound intensity

• How high or low a sound seems to be

What does intensity refer to in the context of sound?

• The number of times per second a sound wave repeats itself

• Human perception of sound intensity

• Amount of energy that flows through a certain area in a given amount of time

• A set of natural frequencies at which an instrument vibrates

How is loudness defined?

• The number of times per second a sound wave repeats itself

• Human perception of sound intensity measured in decibels

• How high or low a sound seems to be

• A set of natural frequencies at which an instrument vibrates

What is pitch related to in sound waves?

• The number of times per second a sound wave repeats itself

• Amount of energy that flows through a certain area

• How high or low a sound seems to be, related to frequency

• A set of natural frequencies at which an instrument vibrates

What are overtones?

• The number of times per second a sound wave repeats itself

• A set of natural frequencies at which an instrument vibrates

• Human perception of sound intensity

• How high or low a sound seems to be

What does the term "resonates" refer to?

• The number of times per second a sound wave repeats itself

• Hollow chambers that amplify sound when air inside vibrates

• Human perception of sound intensity

• A set of natural frequencies at which an instrument vibrates

What is regular reflection?

• Reflection of light off a rough surface

• Reflection of light off a smooth surface like a mirror

• The angle of incidence is equal to the angle of reflection

• Light rays appear to be touching but do not pass through the image

What is the law of reflection?

• Reflection of light off a smooth surface

• The angle of incidence is equal to the angle of reflection

• Light rays appear to be touching but do not pass through the image

• Occurs when light passes from one medium to another

What occurs during refraction of light?

• Light reflects off a smooth surface

• Light reflects off a rough surface

• Light passes from one medium to another and is bent or refracted

• Light rays appear to be touching but do not pass through the image

What is a virtual image?

• Light rays actually passing through an image

• Light rays appear to be touching but do not pass through the image

• Light rays are bent or refracted

• Light reflects off a rough surface