Multiple Choice (2 Points each)
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1.
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A body at rest may have
A) | velocity | B) | momentum | C) | speed | D) | energy |
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2.
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Pitch of a sound corresponds to its
A) | amplitude | B) | frequency | C) | period | D) | speed |
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3.
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The color of light depends on its
A) | wavelength | B) | intensity | C) | amplitude | D) | velocity |
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4.
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If you warm your hand by holding them to one side of a flame, heat transfer is
primarily by
A) | radiation | B) | convection | C) | vaporization | D) | conduction |
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5.
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A red rose
A) | reflects all colors | B) | absorbs all colors but red | C) | absorbs red
light | D) | refracts red light |
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6.
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The temperature of a substance remains constant while it absorbs heat.
Which of the following best describes the substance?
A) | solide | B) | gas | C) | liquid | D) | substance undergoing a phase
change |
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7.
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Police radar uses the principle of
A) | Doppler effect | B) | interference | C) | resonance | D) | refraction |
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8.
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If the speed of light through a liquid is measured at 2.4x108 m/s,
what is the index of refraction of the liquid? (c = 3x108 m/s)
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9.
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In winter dark-colored clothes keep you warmer than light-colored clothes
because
A) | light-colored clothes absorb all light and heat associated with
it. | B) | light-colored clothes reflect all light and heat associated with
it. | C) | dark-colored clothes reflect all light and heat associated with
it. | D) | dark-colored clothes absorb all light and heat associated with
it. |
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10.
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A spectrum of colors seen on an oil slick on a wet street is primarily a result
of
A) | interference | B) | diffraction | C) | scattering | D) | polarization |
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11.
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The amplitude of the wave shown below is
A) | 20 cm | B) | 9 cm | C) | 10
cm | D) | 18 cm |
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12.
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As the temperature of air increases, the velocity of sound waves in
air
A) | decreases | B) | remain constant | C) | increases | D) | may increase or
decrease |
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13.
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Which of the following electromagnetic waves has the longest
wavelength?
A) | radio waves | B) | blue light | C) | red
light | D) | infrared |
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