Question 1

The ionosphere

Accepted Answer

A)  reflects radio waves. 
B)  is responsible for the blue color of the sky. 
C)  is responsible for rainbows. 
D)  is caused by the exhausts of high-altitude aircraft. 
A)  reflects radio waves. 
B)  is responsible for the blue color of the sky. 
C)  is responsible for rainbows. 
D)  is caused by the exhausts of high-altitude aircraft.

Question 2

The image a camera lens forms on the film or sensor is

Accepted Answer

A)  always real. 
B)  always virtual. 
C)  sometimes real and sometimes virtual. 
D)  neither real nor virtual. 
A)  always real. 
B)  always virtual. 
C)  sometimes real and sometimes virtual. 
D)  neither real nor virtual.

Question 3

A wave of amplitude A interferes with another wave of the same kind with the same frequency whose amplitude is also

Accepted Answer

A)  has an amplitude of 2A. 
B)  has an amplitude between 0 and A. 
C)  has an amplitude between A and 2A. 
D)  has an amplitude between 0 and 2A. 
A)  has an amplitude of 2A. 
B)  has an amplitude between 0 and A. 
C)  has an amplitude between A and 2A. 
D)  has an amplitude between 0 and 2A.

Question 4

Relative to its object, a real image formed by a lens is always

Accepted Answer

A)  erect. 
B)  inverted. 
C)  smaller. 
D)  larger. 
A)  erect. 
B)  inverted. 
C)  smaller. 
D)  larger.

Question 5

Two waves meet at a time when one has the instantaneous amplitude A and the other has the instantaneous amplitude

Accepted Answer

A)  A + B. 
B)  A - B. 
C)  between A + B and A - B. 
D)  indeterminate. 
A)  A + B. 
B)  A - B. 
C)  between A + B and A - B. 
D)  indeterminate.

Question 6

The Swedish flag is blue and yellow. When viewed with blue light it appears

Accepted Answer

A)  all blue. 
B)  blue and yellow. 
C)  blue and black. 
D)  white and yellow. 
A)  all blue. 
B)  blue and yellow. 
C)  blue and black. 
D)  white and yellow.

Question 7

Relative to the radio signals sent out by a spacecraft headed away from the earth, the signals that are received on the earth have

Accepted Answer

A)  a lower speed. 
B)  a lower frequency. 
C)  a shorter wavelength. 
D)  all of these properties. 
A)  a lower speed. 
B)  a lower frequency. 
C)  a shorter wavelength. 
D)  all of these properties.

Question 8

Which one of the following effects does not occur in all types of wave?

Accepted Answer

A)  reflection 
B)  polarization 
C)  diffraction 
D)  the Doppler effect 
A)  reflection 
B)  polarization 
C)  diffraction 
D)  the Doppler effect

Question 9

An example of a purely longitudinal wave 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 10

Which of the following is not a property of an electromagnetic wave?

Accepted Answer

A)  wavelength 
B)  speed 
C)  power 
D)  electric charge 
A)  wavelength 
B)  speed 
C)  power 
D)  electric charge

Question 11

The image formed by a diverging lens of a real object is always which of the following?

Accepted Answer

A)  virtual 
B)  real 
C)  inverted 
D)  larger than the object 
A)  virtual 
B)  real 
C)  inverted 
D)  larger than the object

Question 12

The musical note A has a frequency of 440 Hz and its wavelength in seawater is 3.5 m. The speed of sound in seawater is

Accepted Answer

A)  80 m/s. 
B)  126 m/s. 
C)  1540 m/s. 
D)  3 × 108 m/s. 
A)  80 m/s. 
B)  126 m/s. 
C)  1540 m/s. 
D)  3 × 108 m/s.

Question 13

Radio amateurs are permitted to communicate on the "10-meter band". What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 × 108 m/s.

Accepted Answer

A)  3.3 × 10-8 Hz 
B)  3.0 × 107 Hz 
C)  3.3 × 107 Hz 
D)  3.0 × 109 Hz 
A)  3.3 × 10-8 Hz 
B)  3.0 × 107 Hz 
C)  3.3 × 107 Hz 
D)  3.0 × 109 Hz

Question 14

Of the following kinds of waves, the ones that cannot travel through a vacuum are

Accepted Answer

A)  X-rays. 
B)  radio waves. 
C)  light waves. 
D)  sound waves. 
A)  X-rays. 
B)  radio waves. 
C)  light waves. 
D)  sound waves.

Question 15

A pure musical note causes a thin wooden panel nearby to vibrate with the same frequency. This is an example of

Accepted Answer

A)  an overtone. 
B)  diffraction. 
C)  interference. 
D)  resonance. 
A)  an overtone. 
B)  diffraction. 
C)  interference. 
D)  resonance.

Question 16

In a transverse wave, the individual particles of the medium move

Accepted Answer

A)  in circles. 
B)  in ellipses. 
C)  parallel to the direction of travel. 
D)  perpendicular to the direction of travel. 
A)  in circles. 
B)  in ellipses. 
C)  parallel to the direction of travel. 
D)  perpendicular to the direction of travel.

The ionosphere

The image a camera lens forms on the film or sensor is

A wave of amplitude A interferes with another wave of the same kind with the same frequency whose amplitude is also

Relative to its object, a real image formed by a lens is always

Two waves meet at a time when one has the instantaneous amplitude A and the other has the instantaneous amplitude

The Swedish flag is blue and yellow. When viewed with blue light it appears

Relative to the radio signals sent out by a spacecraft headed away from the earth, the signals that are received on the earth have

Which one of the following effects does not occur in all types of wave?

An example of a purely longitudinal wave is a

Which of the following is not a property of an electromagnetic wave?

The image formed by a diverging lens of a real object is always which of the following?

The musical note A has a frequency of 440 Hz and its wavelength in seawater is 3.5 m. The speed of sound in seawater is

Radio amateurs are permitted to communicate on the "10-meter band". What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 × 10⁸ m/s.

Of the following kinds of waves, the ones that cannot travel through a vacuum are

A pure musical note causes a thin wooden panel nearby to vibrate with the same frequency. This is an example of

In a transverse wave, the individual particles of the medium move

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

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Exam 7: Waves

The ionosphere

The image a camera lens forms on the film or sensor is

A wave of amplitude A interferes with another wave of the same kind with the same frequency whose amplitude is also

Relative to its object, a real image formed by a lens is always

Two waves meet at a time when one has the instantaneous amplitude A and the other has the instantaneous amplitude

The Swedish flag is blue and yellow. When viewed with blue light it appears

Relative to the radio signals sent out by a spacecraft headed away from the earth, the signals that are received on the earth have

Which one of the following effects does not occur in all types of wave?

An example of a purely longitudinal wave is a

Which of the following is not a property of an electromagnetic wave?

The image formed by a diverging lens of a real object is always which of the following?

The musical note A has a frequency of 440 Hz and its wavelength in seawater is 3.5 m. The speed of sound in seawater is

Radio amateurs are permitted to communicate on the "10-meter band". What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 × 108 m/s.

Of the following kinds of waves, the ones that cannot travel through a vacuum are

A pure musical note causes a thin wooden panel nearby to vibrate with the same frequency. This is an example of

In a transverse wave, the individual particles of the medium move

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

Radio amateurs are permitted to communicate on the "10-meter band". What frequency of radio waves corresponds to a wavelength of 10 meters? The speed of radio waves is 3 × 10⁸ m/s.