Question 1

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 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

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 4

The amplitude of the wave shown in the figure is

Accepted Answer

A)  A. 
B)  B. 
C)  C. 
D)  D. 
A)  A. 
B)  B. 
C)  C. 
D)  D.

Question 5

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 6

Light of which of the following colors has the highest frequency?

Accepted Answer

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

Question 7

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 8

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 9

A boat at anchor is rocked by waves whose crests are 50 m apart and whose speed is 10 m/s.These waves reach the boat once every

Accepted Answer

A) 0.2 s. 
B) 5 s. 
C) 50 s. 
D) 500 s. 
A) 0.2 s. 
B) 5 s. 
C) 50 s. 
D) 500 s.

Question 10

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 11

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 12

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 13

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.

Question 14

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 15

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 16

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 17

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 18

A sound wave whose frequency is 50 Hz

Accepted Answer

A) has a relatively short wavelength. 
B) has a relatively long wavelength. 
C) is very soft. 
D) is very loud. 
A) has a relatively short wavelength. 
B) has a relatively long wavelength. 
C) is very soft. 
D) is very loud.

Question 19

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 20

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

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

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

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

The amplitude of the wave shown in the figure is

When waves go from one place to another, they carry

Light of which of the following colors has the highest frequency?

In an electromagnetic wave, the electric field is

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

A boat at anchor is rocked by waves whose crests are 50 m apart and whose speed is 10 m/s.These waves reach the boat once every

When the American flag is viewed with red light it appears

A changing electric field gives rise to

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

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

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

Ultrasound refers to sound whose

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

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

A sound wave whose frequency is 50 Hz

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

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

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

Filters

Exam 7: Waves

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

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

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

The amplitude of the wave shown in the figure is

When waves go from one place to another, they carry

Light of which of the following colors has the highest frequency?

In an electromagnetic wave, the electric field is

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

A boat at anchor is rocked by waves whose crests are 50 m apart and whose speed is 10 m/s.These waves reach the boat once every

When the American flag is viewed with red light it appears

A changing electric field gives rise to

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

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

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

Ultrasound refers to sound whose

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

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

A sound wave whose frequency is 50 Hz

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

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

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

Filters