Chapter 26 Physics Quiz Review

The fact that light travels at 300,000 km/s in empty space is a consequence of _______ . A. energy conservation. B. electromagnetic wave propagation. C. Maxwell's laws. D. electromagnetic field induction.

A. energy conservation

Compared to violet waves, the wavelength of red waves is ________ . A. longer. B. shorter. C. the same. D. undefined for visible light.

A. longer

A lunar eclipse occurs when the ___________ . A. moon passes into Earth's shadow. B. Earth passes into the sun's shadow. C. sun passes into Earth's shadow. D. Earth passes into the moon's shadow.

A. moon passes into the Earth's shadow

When ultraviolet light is incident upon glass, atoms in the glass _________ . A. resonate. B. are forced into vibration. C. pass the light energy along practically undiminished. D. freely absorb and re-emit most of the ultraviolet light.

A. resonate

Red-hot and blue-hot stars appear white to the eye because ___________ . A. they are too dim to fire the cones. B. they are overwhelmed by the blackness of the nighttime sky. C. eye receptivity peaks in the yellow-green part of the spectrum. D. they are too dim to fire the rods.

A. they are too dim to fire the cones

Glass is opaque to wave frequencies that ____________ . A. are below its natural frequencies. B. match its natural frequencies. C. none of these. D. both of these.

B. match its natural frequencies

The main difference between the retina of a human eye and that of a dog's eye is the ________ . A. more intricate optic nerve in a human's eye. B. predominance of cones in a dog's retina C. absence of cones in a dog's retina. D. absence of cones in a human's eye

C. absence of cones in a dog's retina

Most of the waves in the electromagnetic spectrum are ___________ . A. infrared light. B. blue light. C. invisible. D. ultraviolet light.

C. invisible

n the periphery of our vision, we are __________ . A. more sensitive to low frequencies than high ones. B. sensitive to both movement and color. C. sensitive to movement, but cannot see color. D. insensitive to color and movement.

C. sensitive to movement, but cannot see color.

Which of the following is fundamentally different from the others? A. radio waves. B. gamma rays. C. sound waves. D. X-rays.

C. sound waves

The source of all electromagnetic waves is ___________ . A. electric fields. B. heat. C. vibrating charges. D. magnetic fields.

C. vibrating charges

When visible light is incident upon clear glass, atoms in the glass _________ . A. resonate. B. convert the light energy into internal energy. C. convert the light energy into sound waves. D. are forced into vibration.

D. are forced into vibration

The sensation of color is seen when light falls on the eye's ______ . A. both. B. rods. C. neither. D. cones.

D. cones.

Infrared waves are often called heat waves because they ______ . A. emanate from relatively hot sources. B. are the predominant waves emitted by the sun. C. are absorbed rather than reflected by the skin. D. induce resonance in molecules and increase internal energy in a substance.

D. induce resonance in molecules and increase internal energy in a substance.

The cones in the retina of the eye are _________. A. concentrated along the periphery of vision. B. uniformly spread along the visual field. C. concentrated around the blind spot. D. most densely packed at the center of vision.

D. most densely packed at the center of vision.

Electromagnetic waves consist of _________ . A. high frequency gravitational waves. B. particles of light energy. C. compressions and rarefactions of electromagnetic pulses. D. oscillating electric and magnetic fields.

D. oscillating electric and magnetic fields.

The natural frequency of the electrons in the atoms of glass is in the __________ . A. infrared part of the spectrum. B. microwaves part of the spectrum. C. visible part of the spectrum. D. ultraviolet part of the spectrum.

D. ultraviolet part of the spectrum