Waves unit review

Front

What is the purpose of wearing sunglasses in bright sunlight?

Back

Sunglasses partially absorb light, reducing glare and allowing for comfortable vision.

Front

What type of electromagnetic wave is primarily emitted by the sun?

Back

Ultraviolet waves.

Front

What happens to sound when you decrease its amplitude?

Back

The sound becomes quieter.

Front

How can you identify a sound wave with a low pitch?

Back

A sound wave with a low pitch has a longer wavelength and lower frequency.

Front

What is density, and how is it calculated?

Back

Density is the mass per unit volume of a substance, calculated as density = mass/volume.

Front

What are the properties of electromagnetic waves?

Back

Electromagnetic waves travel at the speed of light, do not require a medium, and can exhibit properties of both waves and particles.

Front

What is the relationship between frequency and wavelength in waves?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is the difference between transverse and longitudinal waves?

Back

Transverse waves have oscillations perpendicular to the direction of wave travel, while longitudinal waves have oscillations parallel to the direction of wave travel.

Front

How does temperature affect the speed of sound in a medium?

Back

The speed of sound increases with an increase in temperature.

Front

What is the effect of a medium on the speed of sound?

Back

Sound travels faster in solids than in liquids, and faster in liquids than in gases.