Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Conceptual Physics > Physics Exam #3 > Flashcards

Physics Exam #3 Flashcards

1
Q

Define Waves

A

is a moving disturbance that transfers energy through matter or space.
Ex: water, sound, light, micro, x-ray, ultraviolet, seismic, human (waves)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Crest

A

the highest point of a transverse wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Trough

A

the lowest point of a transverse wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Wavelength

A

the distance between one point on a wave and the exact same point on the next wave.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Amplitude

A

the maximum extent of vibration or the distance from the resting position of the medium to the crest or trough

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Frequency

A

the number of waves produced in a given amount of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Mechanical Waves

A

waves the require a medium to transfer energy
Ex: ocean, sound waves, water waves, seismic waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Electromagnetic Waves

A

waves that go through vacuums, can transfer energy through a medium or empty space.
Ex: radio, light, infared, ultraviolet, x-rays, gamma rays (waves)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Medium

A

something through which a wave travels
solids, liquids, gas
Ex: water wave the medium is water; sound wave = sound; earthquake = ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Transverse Waves

A

the particles of a medium vibrate in opposite (perpendicular) direction of the direction the wave is traveling.
Ex: take the form of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Longitudinal Waves

A

Particles move parallel to the direction of the wave and come in the form of sound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

compressions

A

the squished-up part of the longitudinal wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Rarefactions

A

the spread-out part of the longitudinal wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Light Wave Example

A

transverse wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Micro Wave Example

A

Microwaves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Sound Wave Example

A

Choir singing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Water Wave Example

A

Wave of water (dropping a rock in the water)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Radio Wave Example

A

Bluetooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

X-Ray Wave Example

A

x-ray, mammorgraphyU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

UV Ray Example

A

Tanning Beds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Seismic Wave Example

A

Earthquakes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

EM Spectrum

A

The electromagnetic spectrum is the range of all types of electromagnetic radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

How does sound Work?

A

Sound waves move through matter by making the particles of the medium vibrate.

For example, when you hit a drum, the drum vibrates, and the sound waves travel through the air to your ears.

Objects that vibrate slowly produce low-pitched sounds, while objects that vibrate quickly produce higher-pitched sounds.

It can travel through solids, liquids, gases

Properties: volume, pitch, amplitude, frequency.

24
Q

How Does sound change in different Media?

A

Solids:
Travels fastest through solids because the particles in solids are closer together, allowing sound waves to travel more efficiently.

Travel further without losing much energy

Example: Drums

Liquids:
Travels slower through liquids than solids but faster than through gases. Particles are less tightly packed than in solids, so sound waves encounter more resistance.

Sonar: a way to use sounds to locate in water (bats/dolphins)

Gases:
Travels slowest through gases because the particles in gases are far apart. Sound waves have to push against air molecules; causing energy to be lost quickly.

Sound from a bell, horn, alarm clock

25
Overview of Sound
Sound travels fastest through solids, slower through liquids, and slowest through gases due to the difference in particle arrangement and density in each medium.
26
Pitch
how high or low a sound is
27
Volume
how loud or soft a sound is
28
Ultrasound
sound waves with frequencies above the normal human range of hearing (20-100 kHz)
29
Infrasound
Sounds with frequencies below the normal range of hearing (20-200 kHz)
30
Outer Ear:
Catches the sound wave
31
Middle Ear
takes the sound waves and vibrates the eardrum
32
Inner Ear
Sends the messages to the brain
33
Brain
puts it together so you can understand the sounds
34
Doppler Effect
Is the apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound Long Wavelength/Low Frequency Small Wavelength/High Frequency The Doppler Effect for moving sound source
35
Resonance
the frequency of sound waves exactly matches the natural frequency of an object
36
Period
amount of time it takes for one cycle to pass a given point T = 1/f
37
Opaque
does not allow light to pass through. ALl light absorbed or reflected Ex: wood, table
38
Translucent
can be seen through but not clearly. Allows some light to go through, but some is absorbed or reflected. Ex: wax paper, tissue paper, shades
39
Transparent
almost allows all light to go through, so it can be seen through clearly (trans= across) Ex: window glass, diamond, glass lens, contacts
40
How do we see objects?
Light reflects off them and back to our eyes
41
How do we see colors?
the objects reflect that color of white light, and it absorbs all of the other colors.
42
Subtractive System of Color
Objects create color by subtracting and absorbing certain wavelengths of color while reflecting other wavelengths back to the viewer Uses colorants and reflected light Cyan, magenta, and yellow
43
Additive System of Color
Light is emitted directly from a source before an object reflects light. Red, blue and green
44
Primary and Secondary Colors of LIGHT
Primary: Red, Blue, Green Secondary: Yellow, Cyan, Magenta
45
Primary and Secondary Colors of PIGMENT
Primary: Yellow, Cyan, Magenta Secondary: Red, Blue, Green
46
Reflection (Regular/Diffuse)
When light bounces off an object. Regular: When an object's surface is smooth, and you see an image. Example: a plant (flat) mirror Diffuse: where a rough surface scatters light in many directions and no image appears. Ex: paper is rough enough to scatter light so there is no image.
47
Refraction
light slows down as it goes from space to air. It slows down even more in water and glass. Why? Atoms get in the way Ex: use a lens to curve light on purpose
48
Convex Lenses
(or position) lenses converge (or focus) light and can form images. Ex: magnifying glass, telescope, microscope, binoculars, eyeglass, far-sightedness, camera, projectors
49
Concave Lenses
(or negative) lenses diverge (or spread out) light rays
50
Polarizing Lenses
have special chemical applied to them to filter light the chemical molecules ar elined up specifically to block some of the light from passing through lens. Slits only allow one light to go through.
51
Concave Mirrors
image shows in from the mirror, image different in size
52
Convex Mirror
The reflective surface bulges toward the light source
53
Near Sightedness
light focuses in front of the retina
54
Far-sightedness
light focuses behind the retina
55
Law of Reflection
Angle of Incidence = Angle of Reflection On a flat mirror Incidence = the created light by objects The angle of Reflection = image of the object
56
Diffraction
is the slight bending of light as it passes around the edge of an object. The amount of bending depends on the relative size of the wavelength of light to the size of the opening. If the opening is much larger than the light's wavelength, the bending will be almost unnoticeable.

Conceptual Physics (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions