Question 1

Light travels faster in

Accepted Answer

A) warm air. 
B) cool air. 
C) a vacuum. 
A) warm air. 
B) cool air. 
C) a vacuum.

Question 2

A sheet of red paper will look black when illuminated with

Accepted Answer

A) red light. 
B) yellow light. 
C) magenta light. 
D) cyan light. 
E) none of the above 
A) red light. 
B) yellow light. 
C) magenta light. 
D) cyan light. 
E) none of the above

Question 3

Clouds are semi-transparent to

Accepted Answer

A) ultraviolet light. 
B) infrared light. 
C) none of the above. 
A) ultraviolet light. 
B) infrared light. 
C) none of the above.

Question 4

Which of these has a higher frequency than visible light?

Accepted Answer

A) radio wave 
B) microwave 
C) infrared wave 
D) ultraviolet wave 
A) radio wave 
B) microwave 
C) infrared wave 
D) ultraviolet wave

Question 5

The complementary color of blue is

Accepted Answer

A) red. 
B) green. 
C) yellow. 
D) cyan. 
E) magenta. 
A) red. 
B) green. 
C) yellow. 
D) cyan. 
E) magenta.

Question 6

Because of refraction, a person standing waist deep in a swimming pool appears to have

Accepted Answer

A) shorter legs. 
B) longer legs. 
C) thinner legs. 
D) none of the above 
A) shorter legs. 
B) longer legs. 
C) thinner legs. 
D) none of the above

Question 7

Ultraviolet light that shines on a pane of transparent glass

Accepted Answer

A) produces a chain of absorptions and re-emissions through the glass. 
B) transforms to thermal energy. 
C) is mostly reflected. 
A) produces a chain of absorptions and re-emissions through the glass. 
B) transforms to thermal energy. 
C) is mostly reflected.

Question 8

A rough surface for infrared waves may be polished for

Accepted Answer

A) radio waves. 
B) light waves. 
C) both 
D) neither 
A) radio waves. 
B) light waves. 
C) both 
D) neither

Question 9

Humans see best in the yellow-green region of the spectrum. So the efficiency of sodium yellow-green lamps that illuminate highways is

Accepted Answer

A) higher. 
B) lower. 
C) not affected. 
A) higher. 
B) lower. 
C) not affected.

Question 10

The inversion of your image in a plane mirror is actually an inversion of

Accepted Answer

A) left and right. 
B) up and down. 
C) front and back. 
D) all of the above 
A) left and right. 
B) up and down. 
C) front and back. 
D) all of the above

Question 11

If you wish to spear a fish with a regular spear, you should compensate for refraction and throw your spear

Accepted Answer

A) directly at the sighted fish. 
B) above the sighted fish. 
C) below the sighted fish. 
A) directly at the sighted fish. 
B) above the sighted fish. 
C) below the sighted fish.

Question 12

Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at

Accepted Answer

A) different speeds. 
B) the same speed. 
C) decreased speed. 
A) different speeds. 
B) the same speed. 
C) decreased speed.

Question 13

If you wish to send a beam of laser light to a space station that is above the atmosphere near the horizon, aim your laser

Accepted Answer

A) above your line of sight. 
B) below your line of sight. 
C) along your line of sight. 
A) above your line of sight. 
B) below your line of sight. 
C) along your line of sight.

Question 14

Why is ultraviolet light not transmitted by glass?

Accepted Answer

Ultraviolet light (UV)is in the range of

Question 15

Refraction results from differences in light's

Accepted Answer

A) frequency. 
B) incident angles. 
C) speed. 
D) all of the above 
E) none of the above 
A) frequency. 
B) incident angles. 
C) speed. 
D) all of the above 
E) none of the above

Question 16

Which will warm up quicker in sunlight?

Accepted Answer

A) a piece of colored glass 
B) a piece of clear glass 
C) both the same 
A) a piece of colored glass 
B) a piece of clear glass 
C) both the same

Question 17

The secondary rainbow is dimmer than the primary rainbow because

Accepted Answer

A) its colors are inverted. 
B) it is larger, and its energy spreads across more area. 
C) it is farther from the viewer. 
D) it simply has much less energy than the primary bow. 
E) of an extra reflection and refraction in the drops. 
A) its colors are inverted. 
B) it is larger, and its energy spreads across more area. 
C) it is farther from the viewer. 
D) it simply has much less energy than the primary bow. 
E) of an extra reflection and refraction in the drops.

Question 18

Standing at the shore of a still lake, the reflected view of scenery on the far side of the lake is the view you would see if you were upside down with your eye in the line of sight

Accepted Answer

A) where it presently is. 
B) at the surface of the water where the light reflects. 
C) directly beneath you, as far below water level as you are above. 
D) close to the distant shore. 
E) none of the above 
A) where it presently is. 
B) at the surface of the water where the light reflects. 
C) directly beneath you, as far below water level as you are above. 
D) close to the distant shore. 
E) none of the above

Question 19

Ninety percent of light incident on a certain piece of glass passes through it. How much light passes through two pieces of this glass?

Accepted Answer

A) 80% 
B) 81% 
C) 85% 
D) 89% 
E) 90% 
A) 80% 
B) 81% 
C) 85% 
D) 89% 
E) 90%

Question 20

A beam of light emerges from water into air at an angle bent

Accepted Answer

A) towards the normal 
B) away from the normal. 
C) in a direction parallel to the normal. 
D) in a direction perpendicular to the normal. 
E) not at all. 
A) towards the normal 
B) away from the normal. 
C) in a direction parallel to the normal. 
D) in a direction perpendicular to the normal. 
E) not at all.

Exam 11: Light

Light travels faster in

A sheet of red paper will look black when illuminated with

Clouds are semi-transparent to

Which of these has a higher frequency than visible light?

The complementary color of blue is

Because of refraction, a person standing waist deep in a swimming pool appears to have

Ultraviolet light that shines on a pane of transparent glass

A rough surface for infrared waves may be polished for

Humans see best in the yellow-green region of the spectrum. So the efficiency of sodium yellow-green lamps that illuminate highways is

The inversion of your image in a plane mirror is actually an inversion of

If you wish to spear a fish with a regular spear, you should compensate for refraction and throw your spear

Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at

If you wish to send a beam of laser light to a space station that is above the atmosphere near the horizon, aim your laser

Why is ultraviolet light not transmitted by glass?

Refraction results from differences in light's

Which will warm up quicker in sunlight?

The secondary rainbow is dimmer than the primary rainbow because

Standing at the shore of a still lake, the reflected view of scenery on the far side of the lake is the view you would see if you were upside down with your eye in the line of sight

Ninety percent of light incident on a certain piece of glass passes through it. How much light passes through two pieces of this glass?

A beam of light emerges from water into air at an angle bent

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Timereading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: the Nature of Science

Filters