Light And Sound Test Prep

Front

What are X rays?

Back

X rays are a type of electromagnetic radiation with higher energy than visible light, allowing them to pass through many materials, including human tissue.

Front

How do X rays differ from radio waves?

Back

X rays have higher energy and higher frequencies compared to radio waves.

Front

What does translucent mean?

Back

Translucent materials allow some light to pass through but not enough to see clearly through them.

Front

What is reflection in terms of light?

Back

Reflection is the bouncing of light off a surface.

Front

What is compression in sound?

Back

Compression is when matter is pushed together, creating areas of high pressure in a sound wave.

Front

How is sound measured?

Back

Sound is measured in decibels (dB), which quantify the intensity of sound.

Front

What is the difference between opaque and transparent materials?

Back

Opaque materials do not allow any light to pass through, while transparent materials allow all light to pass through.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, changing its speed.

Front

What are the two main types of waves?

Back

The two main types of waves are mechanical waves (which require a medium) and electromagnetic waves (which can travel through a vacuum).

Front

What is the speed of sound in air?

Back

The speed of sound in air at room temperature is approximately 343 meters per second.