Question 1

When the American flag is viewed with red light it appears

Accepted Answer

A)  all red. 
B)  red, white, and blue. 
C)  red and blue. 
D)  red and black. 
A)  all red. 
B)  red, white, and blue. 
C)  red and blue. 
D)  red and black.

Question 2

You are looking at the bottom of a lake 1.2 m deep from a boat. To you the lake seems to be

Accepted Answer

A)  less than 1.2 m deep. 
B)  1.2 m deep. 
C)  more than 1.2 m deep. 
D)  Any of these choices could be correct, depending on the height of the sun. 
A)  less than 1.2 m deep. 
B)  1.2 m deep. 
C)  more than 1.2 m deep. 
D)  Any of these choices could be correct, depending on the height of the sun.

Question 3

A changing electric field gives rise to

Accepted Answer

A)  a magnetic field. 
B)  electromagnetic waves. 
C)  sound waves. 
D)  nothing in particular. 
A)  a magnetic field. 
B)  electromagnetic waves. 
C)  sound waves. 
D)  nothing in particular.

Question 4

Ocean waves with a period is 10 s are found to have a wavelength of 120 m. Their speed is

Accepted Answer

A)  0.083 m/s. 
B)  12 m/s. 
C)  120 m/s. 
D)  1200 m/s. 
A)  0.083 m/s. 
B)  12 m/s. 
C)  120 m/s. 
D)  1200 m/s.

Question 5

A frequency that is not an overtone of the fundamental frequency F is

Accepted Answer

A)  F/2. 
B)  2F. 
C)  3F. 
D)  4F. 
A)  F/2. 
B)  2F. 
C)  3F. 
D)  4F.

Question 6

The amplitude of a sound wave determines its

Accepted Answer

A)  loudness. 
B)  pitch. 
C)  wavelength. 
D)  overtones. 
A)  loudness. 
B)  pitch. 
C)  wavelength. 
D)  overtones.

Question 7

Of the following, the highest index of refraction is found in

Accepted Answer

A)  air. 
B)  water. 
C)  glass. 
D)  diamond. 
A)  air. 
B)  water. 
C)  glass. 
D)  diamond.

Question 8

A 80-dB sound carries more energy than a 40-dB sound by a factor of

Accepted Answer

A)  2. 
B)  40. 
C)  400. 
D)  10,000. 
A)  2. 
B)  40. 
C)  400. 
D)  10,000.

Question 9

Ultrasound refers to sound whose

Accepted Answer

A)  frequency is too high for most people to hear. 
B)  wavelength is too long for most people to hear. 
C)  intensity level is 100 dB or more. 
D)  frequency has undergone a Doppler shift to a higher one. 
A)  frequency is too high for most people to hear. 
B)  wavelength is too long for most people to hear. 
C)  intensity level is 100 dB or more. 
D)  frequency has undergone a Doppler shift to a higher one.

Question 10

In an electromagnetic wave, the electric field is

Accepted Answer

A)  parallel to both the magnetic field and the wave direction. 
B)  perpendicular to both the magnetic field and the wave direction. 
C)  parallel to the magnetic field and perpendicular to the wave direction. 
D)  perpendicular to the magnetic field and parallel to the wave direction. 
A)  parallel to both the magnetic field and the wave direction. 
B)  perpendicular to both the magnetic field and the wave direction. 
C)  parallel to the magnetic field and perpendicular to the wave direction. 
D)  perpendicular to the magnetic field and parallel to the wave direction.

Question 11

When waves go from one place to another, they carry

Accepted Answer

A)  amplitude. 
B)  frequency. 
C)  wavelength. 
D)  energy. 
A)  amplitude. 
B)  frequency. 
C)  wavelength. 
D)  energy.

Question 12

A converging lens of focal length f produces a real image of a real object when the object is

Accepted Answer

A)  closer than f from the lens. 
B)  at the distance f from the lens. 
C)  farther than f from the lens. 
D)  at any distance from the lens. 
A)  closer than f from the lens. 
B)  at the distance f from the lens. 
C)  farther than f from the lens. 
D)  at any distance from the lens.

Question 13

A converging lens of focal length f produces a virtual image of a real object when the object is

Accepted Answer

A)  closer than f from the lens. 
B)  at the distance f from the lens. 
C)  farther than f from the lens. 
D)  at any distance from the lens. 
A)  closer than f from the lens. 
B)  at the distance f from the lens. 
C)  farther than f from the lens. 
D)  at any distance from the lens.

Question 14

The property of light waves that leads to the phenomenon of color is

Accepted Answer

A)  speed. 
B)  amplitude. 
C)  acceleration. 
D)  frequency. 
A)  speed. 
B)  amplitude. 
C)  acceleration. 
D)  frequency.

Question 15

Sound waves of frequency 300 Hz have a speed relative to sound waves in the same medium of frequency 600 Hz that is

Accepted Answer

A)  half as great. 
B)  the same. 
C)  twice as great. 
D)  four times as great. 
A)  half as great. 
B)  the same. 
C)  twice as great. 
D)  four times as great.

Question 16

When a sound wave goes from air into water, the quantity that remains unchanged is its

Accepted Answer

A)  speed. 
B)  amplitude. 
C)  frequency. 
D)  wavelength. 
A)  speed. 
B)  amplitude. 
C)  frequency. 
D)  wavelength.

Question 17

Light of which of the following colors is scattered most in the atmosphere?

Accepted Answer

A)  red 
B)  blue 
C)  yellow 
D)  green 
A)  red 
B)  blue 
C)  yellow 
D)  green

Question 18

An example of a wave that is partly longitudinal and partly transverse is a

Accepted Answer

A)  sound wave. 
B)  light wave. 
C)  water wave. 
D)  wave in a stretched string. 
A)  sound wave. 
B)  light wave. 
C)  water wave. 
D)  wave in a stretched string.

Question 19

The bending of waves around the edge of an obstacle in their path is an example of

Accepted Answer

A)  refraction. 
B)  reflection. 
C)  diffraction. 
D)  the Doppler effect. 
A)  refraction. 
B)  reflection. 
C)  diffraction. 
D)  the Doppler effect.

Question 20

The speed of light in a transparent plastic whose index of refraction is 1.5 is

Accepted Answer

A)  1.5 × 108 m/s. 
B)  2 × 108 m/s. 
C)  3 × 108 m/s. 
D)  4.5 × 108 m/s. 
A)  1.5 × 108 m/s. 
B)  2 × 108 m/s. 
C)  3 × 108 m/s. 
D)  4.5 × 108 m/s.

When the American flag is viewed with red light it appears

You are looking at the bottom of a lake 1.2 m deep from a boat. To you the lake seems to be

A changing electric field gives rise to

Ocean waves with a period is 10 s are found to have a wavelength of 120 m. Their speed is

A frequency that is not an overtone of the fundamental frequency F is

The amplitude of a sound wave determines its

Of the following, the highest index of refraction is found in

A 80-dB sound carries more energy than a 40-dB sound by a factor of

Ultrasound refers to sound whose

In an electromagnetic wave, the electric field is

When waves go from one place to another, they carry

A converging lens of focal length f produces a real image of a real object when the object is

A converging lens of focal length f produces a virtual image of a real object when the object is

The property of light waves that leads to the phenomenon of color is

Sound waves of frequency 300 Hz have a speed relative to sound waves in the same medium of frequency 600 Hz that is

When a sound wave goes from air into water, the quantity that remains unchanged is its

Light of which of the following colors is scattered most in the atmosphere?

An example of a wave that is partly longitudinal and partly transverse is a

The bending of waves around the edge of an obstacle in their path is an example of

The speed of light in a transparent plastic whose index of refraction is 1.5 is

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Exam 7: Waves

When the American flag is viewed with red light it appears

You are looking at the bottom of a lake 1.2 m deep from a boat. To you the lake seems to be

A changing electric field gives rise to

Ocean waves with a period is 10 s are found to have a wavelength of 120 m. Their speed is

A frequency that is not an overtone of the fundamental frequency F is

The amplitude of a sound wave determines its

Of the following, the highest index of refraction is found in

A 80-dB sound carries more energy than a 40-dB sound by a factor of

Ultrasound refers to sound whose

In an electromagnetic wave, the electric field is

When waves go from one place to another, they carry

A converging lens of focal length f produces a real image of a real object when the object is

A converging lens of focal length f produces a virtual image of a real object when the object is

The property of light waves that leads to the phenomenon of color is

Sound waves of frequency 300 Hz have a speed relative to sound waves in the same medium of frequency 600 Hz that is

When a sound wave goes from air into water, the quantity that remains unchanged is its

Light of which of the following colors is scattered most in the atmosphere?

An example of a wave that is partly longitudinal and partly transverse is a

The bending of waves around the edge of an obstacle in their path is an example of

The speed of light in a transparent plastic whose index of refraction is 1.5 is

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe Galaxies

Filters