Light Waves- Assessment

Front

What is amplitude in the context of waves?

Back

Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium. In light waves, it relates to the brightness of the light.

Front

What type of wave carries energy through empty space?

Back

Light waves are a type of electromagnetic wave that can travel through a vacuum, carrying energy from one place to another.

Front

Which type of light is known to cause skin cancer?

Back

Ultraviolet (UV) light is known to be responsible for causing skin cancer.

Front

True or False: A material can absorb energy from some types of light and not others.

Back

True. For example, a green plant absorbs red and blue light while reflecting green light.

Front

How can sunlight damage house paint?

Back

Sunlight can damage house paint by providing energy that causes chemical changes in the paint, leading to fading and deterioration.

Front

What is the relationship between wavelength and color in light waves?

Back

Different colors of light correspond to different wavelengths; for example, blue light has a shorter wavelength than red light.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 300,000 kilometers per second).

Front

What is the difference between visible light and ultraviolet light?

Back

Visible light is the portion of the electromagnetic spectrum that can be seen by the human eye, while ultraviolet light has shorter wavelengths and is not visible to the human eye.

Front

What happens to light when it hits a reflective surface?

Back

When light hits a reflective surface, it bounces back, a process known as reflection.

Front

What is refraction in the context of light waves?

Back

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