Waves Review - 1st

Front

What is refraction in the context of light behavior?

Back

Refraction is the bending of light as it passes from one medium to another, caused by a change in its speed.

Front

How does light behave when it reflects off an irregular surface?

Back

Light reflects in many different directions when it strikes an irregular surface, such as a crumpled piece of paper.

Front

What is a mechanical wave?

Back

A mechanical wave is a type of wave that requires a medium (solid, liquid, or gas) to travel through.

Front

Can you name a type of wave that requires a medium to travel?

Back

Sound waves are a type of mechanical wave that requires a medium to travel.

Front

Why does sound travel faster in water than in air?

Back

Sound travels faster in water than in air because water is denser than air, allowing sound waves to transmit more quickly.

Front

What is the difference between mechanical waves and electromagnetic waves?

Back

Mechanical waves require a medium to travel, while electromagnetic waves do not require a medium and can travel through a vacuum.

Front

What is reflection in the context of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What are ultrasonic waves?

Back

Ultrasonic waves are sound waves with frequencies above the upper limit of human hearing, typically above 20 kHz.

Front

How do bats and porpoises use ultrasonic waves?

Back

Bats and porpoises use ultrasonic waves for echolocation, allowing them to navigate and locate objects by interpreting the echoes of the sound waves they produce.