Light and radiation

Radiation is

• any way in which energy is transferred through space

• rapidly fluctuating energy

• the way energy is transferred from place to place

• the number of waves passing any single point

Visible light is

• the particular type of electromagnetic interference that is available in the atmosphere

• the way in which energy is transferred

• the particular type of electromagnetic radiation to which human eyes are sensitive

• total energy emission times temperature

Which is the type of invisible electromagnetic radiation?

• radio waves

• infrared waves

• ultraviolet waves

• all of the above

The number of wave crests passing any given point per unit time is known as the waves

• frequency

• amplitude

• wavelength

• period

wavelength X frequency =

• velocity

• amplitude

• period

• spectrum

True or False - Light, radio, ultraviolet, and gamma rays are all forms of electromagnetic radiation

• TRUE

• FALSE

Sound is a familiar type of electromagnetic wave

• TRUE

• FALSE

What are the colors of the visible light spectrum?

Which of the following describe radio waves?

• Low frequency.

• Long wavelengths.

• Used in communications.

• Are visible.

Which of the following describe ultra violet (UV) light?

• High frequency waves.

• Long wavelengths.

• More powerful than visible light.

• Can cause cancer in high doses.