Flashcards Lights, Sound & Communication Waves

Front

Which of the following is NOT a property of light waves? Reflection, Refraction, Magnetism, Absorption

Back

Magnetism

Front

What do we call the bending of light as it passes from one medium to another?

Back

Refraction

Front

Which color of visible light has the shortest wavelength?

Back

Violet

Front

What is the unit used to measure the frequency of a wave?

Back

Hertz

Front

Which part of the electromagnetic spectrum can humans see?

Back

Visible light

Front

Which device is used to split white light into its component colors?

Back

Prism

Front

Which of the following is an example of a longitudinal wave? Light wave, Sound wave, Water wave, X-ray

Back

Sound wave

Front

What is the main function of a lens in optical devices?

Back

To focus or spread light

Front

If a light wave passes from air into water, what happens to its speed?

Back

Decreases

Front

Why does a red object appear red?

Back

Reflects red light