Amplify Light Waves Unit Test

Front

What is light energy?

Back

Light energy is a form of energy that travels in waves and can be seen by the human eye. It is responsible for the illumination of our surroundings.

Front

How does sunlight differ from light from a desk lamp?

Back

Sunlight contains a broader spectrum of light, including ultraviolet (UV) rays, which can carry more energy than the light from a desk lamp.

Front

What is wavelength in relation to light?

Back

Wavelength is the distance between two consecutive peaks of a light wave. It determines the color of the light.

Front

What is amplitude in relation to light?

Back

Amplitude refers to the height of the light wave. It is related to the brightness of the light.

Front

What happens to materials when they absorb light energy?

Back

When materials absorb light energy, they can heat up, change color, or undergo physical changes, such as melting.

Front

What is the role of energy in the drying process of glue?

Back

Energy from light can cause the molecules in glue to move faster, leading to evaporation of solvents and hardening of the glue.

Front

Can light cause physical changes in materials?

Back

Yes, light can cause physical changes in materials by providing energy that can lead to reactions such as fading, melting, or chemical changes.

Front

What is the difference between ultraviolet light and visible light?

Back

Ultraviolet light has a shorter wavelength than visible light and carries more energy, which can cause chemical reactions.

Front

Why do some materials melt under sunlight but not under artificial light?

Back

Some materials require a certain amount of energy to change state, which may only be provided by sunlight due to its intensity and spectrum.

Front

What is the significance of different types of light in heating materials?

Back

Different types of light have different wavelengths and energy levels, affecting their ability to heat or change materials.