Chapter 03: Electromagnetic Energy - Multiple Choice

The four properties of photons are _______, _______, _______, and _______.

• size, shape, spin, mass

• frequency, mass, amplitude, wavelength

• frequency, wavelength, velocity, amplitude

• refraction, velocity, spin, amplitude

The smallest quantity of any type of electromagnetic radiation is a(n) _________.

• photon

• electron

• neutrino

• quark

What is the velocity of all electromagnetic radiation?

• 3 × 10^8 m/s

The rate of rise and fall of a sine wave is called its __________.

• amplitude

• frequency

• wavelength

• velocity

A hertz (Hz) is equal to ______ cycle(s) per second.

• 1

• 10

• 100

• 0.1

What is the electromagnetic wave equation?

• c = f l

• c = f/l

• c = f v

• c = f – l

The _________ of electromagnetic radiation is constant.

• amplitude

• velocity

• frequency

• wavelength

If the wavelength of a beam of electromagnetic radiation increases by a factor of 2, then its frequency must __________.

• double

• increase four times

• decrease by half

• remain constant

The intensity of radiation __________ in __________ proportion to the square of the distance of the object from the source.

• increases, direct

• decreases, direct

• increases, inverse

• decreases, inverse

The reduction of radiation intensity due to scattering and absorption is called______.

• reflection

• refraction

• attenuation

• dispersion