Light Waves Pre-Unit Assessment

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What happens to a material when it absorbs light?

Back

When a material absorbs light, it can gain energy, which may cause changes such as heating or color alteration.

Front

What is ultraviolet (UV) light?

Back

Ultraviolet light is a type of light that is not visible to the human eye but can cause chemical reactions, such as fading colors or causing sunburn.

Front

How does sunlight affect colors of materials over time?

Back

Sunlight can cause materials to fade because it contains UV light that can break down the chemical bonds in dyes and pigments.

Front

What is infrared (IR) light?

Back

Infrared light is a type of light that is felt as heat and is not visible to the human eye.

Front

What is the difference between visible light and other types of light?

Back

Visible light is the portion of the electromagnetic spectrum that can be seen by the human eye, while other types, like UV and IR, are not visible.

Front

Can light change the temperature of an object?

Back

Yes, when light is absorbed by an object, it can increase the object's temperature.

Front

What is the role of energy in light interactions with materials?

Back

Energy from light can cause physical changes in materials, such as heating them up or changing their color.

Front

What is the effect of X-ray light on materials?

Back

X-ray light can penetrate materials and is often used in medical imaging; it can also cause changes at a molecular level.

Front

Why do some types of light not heat up certain materials?

Back

Some materials do not absorb certain types of light, meaning they do not gain energy from that light, resulting in no heating.