Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/41

Click to flip

41 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
The nucleus of an atom is made up of
B. Protons and Neutrons
A. Electrons and protons
B. Protons and neutrons
C. Electrons and neutrons
D. Protons, electrons, and neutrons
In a vacuum, electromagnetic radiation of short wavelengths....
B.Travels as fast as radiation of long wavelengths
A. Can travel both faster and slower than radiation of long wavelengths
B. Travels as fast as radiation of long wavelengths
C. Travels faster than radiation of long wavelengths
D. Travels slower than radiation of long wavelengths
Snell's law is a ratio between the sine of the angle of incidence and the sine of the angle of refraction which...
A. Remains constant for the medium
A. Remains constant for the medium
B. Is difficult to define
C. Often is a number greater than 10
D. Changes in relationship to the angle of incidence
If a light ray stikes a flat mirror at an angle of 30 degrees from the normal, the ray will be reflected at an angle of
A. 60 degrees from the mirror's surface
A. 60 degrees from the mirror's surface
B. 90 degrees from the normal
C. 30 degrees from the mirror's surface
D. 60 degrees from the normal
If light waves change speed when they pass from one medium into another, the light will be...
B. Refracted
A. Reflected
B. Refracted
C. Diffused
D. Separated
A wave will travel only as long as it has _____ to carry
A. energy
A. energy
B. mass
C. matter
D. amplitude
If a light ray is traveling from air into glass and meets this boundary at an angle of incidence of 36 degrees, which of the following is the angle of refraction
A. 22 degrees
A. 22 degrees
B. 36 degrees
C. None of these
D. 45 degrees
An image of a distant object produced by the refraction of light through air layers of different densities is _______.
B. a mirage
A. incoherent
B. a mirage
C. a ghost image
D. coherent
The line that is perpendicular to a surface at any given point is called the
A. normal
A. normal
B. incidence
C. measuring line
D. nonsense
If a light ray strikes a flat mirror at an angle of 27 degrees from the normal, the reflected ray will be
D. 27 degrees from the normal
A. 63 degrees from the normal
B. 27 degrees from the normal
C. 90 degrees from the mirror's surface
D. 27 degrees from the normal
When a straight line is drawn perpendicular to a flat mirror at the point where an incoming ray strikes the mirror's surface, the angles of incidence and reflection are measured from the normal and
D. the angles of incidence and reflection are equal
A. the angle of incidence is less than the angle of reflection
B. the angle of incidence is greater than the angle of refraction
C. the angle of incidence can be greater than or less than the angle of reflection
D. the angles of incidence and reflection are equal
Refraction is the term for the bending of a wave disturbance as it passes at an angle from one ________ into another.
A. medium
A. medium
B. area
C. glass
D. boundary
When a light ray passes from water (n=1.333) into diamond (n=2.419) at an angle of 45 degrees, its path is
C. bent toward the normal
A. not bent
B. bent away from the normal
C. bent toward the normal
D. parallel to the normal
Which of the following is the most likely angle of refraction for a light beam traveling from air into a glass prism stiking at an angle of 35 degrees?
A. 26 degrees
A. 26 degrees
B. 46 degrees
C. 56 degrees
D. 35 degrees
Two ducks are flying south when they encounter a large cloud. If their speed was 35 km/h before reaching the cloud and it changes to 25 km/h after entering the cloud, where are they headed?
D. south for the winter
A. south for the summer
B. 10 km/h north
C. 60 km/h south
D. south for the winter
Which is an example of refraction?
D. A fish appears closer to the surface of the water than it really is when observed from a riverbank.
A. A parabolic mirror in a headlight focuses light into one beam.
B. Light is bent slightly around corners.
C. In a mirror, when you lift your right arm, the left arm of your image is raised
D. A fish appears closer to the surface of the water than it really is when observed from a riverbank.
If a light ray strikes a flat mirror at an angle of 14 degrees from the normal, the reflected ray will be
B. 14 degrees from the normal
A. 90 degrees from the mirror's surface
B. 14 degrees from the normal
C. 27 degrees from the normal
D. 13 degrees from the mirror's surface
Reflection of light waves from a smooth surface is
C. regular reflection
A. diffuse reflection
B. mirror reflection
C. regular reflection
D. irregular reflection
The _______ of light can change when light is refracted because the wavelength changes
A. color
A. color
B. transparency
C. frequency
D. media
Which of the following describes what will happen to a light ray incident on a glass to air boundary at greater than the critical angle?
D. total reflection
A. partial reflection, total transmission
B. total transmission
C. partial reflection, partial transmission
D. total reflection
When a light ray moves from air into glass at an angle of 45 degrees, its path is...
C.Bent toward the normal
A. Bent away from the normal
B. Parallel to the normal
C. Bent toward the normal
D. Not bent
Which interaction of nature holds the planets, stars, and galaxies together, even though its effect on elementary particles is negligible?
B. Gravitational
A. Electromagnetic
B. Gravitational
C. Strong
D. Weak
Part of a pencil that is placed in a glass of water appears bent in relation to the part of the pencil that extends out of the water. What is this phenomenon called?
C. Refraction
A. Reflection
B. Interference
C. Refraction
D. Diffraction
The speed of electromagnetic waves is _________.
D. 300,000 km/s in a vacuum
A. Different for each frequency in a vacuum
B. Less for light than for X-rays
C. Greater in water than in air
D. 300,000 km/s in a vacuum
If a light ray is traveling from glass into air and meets this boundary at an angle of incidence of 36 degrees, which of the following is the angle of refraction
B. 45 degrees
A. 22 degrees
B. 45 degrees
C. None of these
D. 36 degrees
A radio wave has a speed of 3.00 x 10^8 m/s and a frequency of 107 MHz. What is the wavelength?
C. 2.79 m
A. 0.100 m
B. 45.0 m
C. 2.79 m
D. 3.21 m
Which of the following is a wave whose source is some form of repeating motion?
D. Periodic wave
A. Transverse
B. Pulse wave
C. Sine wave
D. Periodic wave
What happens to the energy carried in a given time interval by a mechanical wave when the wave's amplitude is doubled?
B. It increases by a factor of four.
A. It increases by a factor of two.
B. It increases by a factor of four.
C. It decreases by a factor of four.
D. It decreases by a factor of two.
Which of the following is the interference that results when individual displacements on opposite sides of the equilibrium position are added together to form the resultant wave?
A. Destructive
A. Destructive
B. Complete constructive
C. Complete destructive
D. Constructive
Which of the following is the interference that results when individual displacements on the same side of the equilibrium position are added together to form the resultant wave?
B. Constructive
A. Complete constructive
B. Constructive
C. Complete destructive
D. Destructive
Tripling the displacement from equilibrium of an object in simple harmonic motion will change the magnitude of the object's maximum acceleration by what factor?
D. 3
A. 9
B. 1
C. one-third
D. 3
An amusement park ride swings back and forth once every 40.0 s. What is the ride's frequency?
B. 2.50 x 10^-2 Hz
A. 25.0 x 10^-2 Hz
B. 2.50 x 10^-2 Hz
C. 40.0 x 10^-2 Hz
D. 5.00 x 10^-2 Hz
Which of the following is the time it takes to complete a cycle of motion?
A. Period
A. Period
B. Amplitude
C. Revolution
D. Frequency
Water waves are ___________.
D. Both A and B
A. Compressional waves
B. Transverse waves
C. Seismic waves
D. Both a and b
How many nodes and antinodes are shown in the standing wave above?
A. Five nodes and four antinodes
A. Five nodes and four antinodes
B. Four nodes and three antinodes
C. Four nodes and four antinodes
D. Four nodes and five antinodes
Wave A carries more energy than wave B. Wave B has a smaller ______ than wave A.
D. Amplitude
A. Wavelength
B. Frequency
C. Speed
D. Amplitude
Two waves can occupy the same space at the same time because waves
A. are displacements of matter
A. are displacements of matter
B. do not cause interference patterns
C. cannot pass through one another
D. are matter
The angle between the string of a pendulum at its equilibrium position and at its maximum displacement is its
A. Amplitude
A. Amplitude
B. Frequency
C. Period
D. Vibration
In the waveform of the longitudinal wave shown above, the compressed regions correspond to
A. Crests
A. Crests
B. Troughs
C. The mass
D. The wavelength
What happens to the energy carried in a given time interval by a mechanical wave when the wave's amplitude is halved?
A. It decreases by a factor of four.
A. It decreases by a factor of four.
B. It decreases by a factor of two.
C. It increases by a factor of four.
D. It increases by a factor of two.
A 2.0 m long stretched rope is fixed at both ends. Which wavelength would NOT produce standing waves on this rope?
B. 3.0 m
A. 6.0 m
B. 3.0 m
C. 2.0 m
D. 4.0 m