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Study sets matching "physics em"

30 terms
physics EM
high frequency radio waves used in cel…
another name for heat waves
the longest wavelength in the entire s…
the wave with a frequency just above t…
microwaves
infrared
am radio waves
ultraviolet waves
high frequency radio waves used in cel…
microwaves
another name for heat waves
infrared
11 terms
Physics EM
Dangers of microwaves
Dangers of infra-red
Dangers of ultra violet
Dangers of gamma rays
Internal heating of body tissue
Skin burns
Damage to surface cells (skin cancer and blindness)
Cancer cell mutations
Dangers of microwaves
Internal heating of body tissue
Dangers of infra-red
Skin burns
21 terms
Physics-EM
voltage
current
resistance
power
the push relate to an electric field inside a circuit
the rate at which electrons flow through a wire
the effectiveness of a material to allow electrons to pass th…
the rate at which energy is used
voltage
the push relate to an electric field inside a circuit
current
the rate at which electrons flow through a wire
36 terms
EM Waves ~ Honors Physics
Amplitude
Angle of Incidence
Angle of Reflection
Angle of Refraction
displacement of the equilibrium of a wave to its highest point
angle created by the normal and the incidence ray
always equal to the angle of incidence; angle created by norm…
occurs when an incident ray comes into a new medium and is be…
Amplitude
displacement of the equilibrium of a wave to its highest point
Angle of Incidence
angle created by the normal and the incidence ray
12 terms
Physics EMS
Electromagnetic Spectrum
Radiation
Cosmic Radiation
Photon
A range of light energy based on wavelength, energy, and fequ…
Light Energy
Light Energy from space
Massless bundle of electromagnetic energy
Electromagnetic Spectrum
A range of light energy based on wavelength, energy, and fequ…
Radiation
Light Energy
16 terms
Vocab. EM (Physics)
Electric Fields
Magnetic Fields
Magnetic Domain
Magnetic Poles
An area where the direction moves way the force would place a…
The invisible area around a magnet like material
The place within a object which....
Pole that have magnets inside of them.The opposites attract,…
Electric Fields
An area where the direction moves way the force would place a…
Magnetic Fields
The invisible area around a magnet like material
36 terms
EM and Fluid Physics
Effective Nuclear Charge (Zeff)
Average Molecular Speed Equation
Avogadro's Number
Boyle's Law
a measure of the net positive charge experienced by the outer…
KE=(1/2)(m)(v^2)=(3/2)(Kb)(T)... where Kb = Boltzmann constant
6.022 E +23 molecules per mole
Pressure and Volume are inversely proportional
Effective Nuclear Charge (Zeff)
a measure of the net positive charge experienced by the outer…
Average Molecular Speed Equation
KE=(1/2)(m)(v^2)=(3/2)(Kb)(T)... where Kb = Boltzmann constant
16 terms
Physics midterm EM
Discuss the similarities and differenc…
3 ways to induce and Emf in a loop?
How much work is done on the charge by…
RHR1
-they both produce one another ... -electric field goes from pos…
-bring a magnet closer or farther away... -change the area of th…
MAGNETIC FIELDS DO NOT WORK !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!…
with a flat RIGHT hand..... -thumb points with V... -fingers point…
Discuss the similarities and differenc…
-they both produce one another ... -electric field goes from pos…
3 ways to induce and Emf in a loop?
-bring a magnet closer or farther away... -change the area of th…
7 terms
as physics em radiation
radiowaves
microwaves
infrared
visible light
3
-2
-5
-6
radiowaves
3
microwaves
-2
12 terms
Physics Definitions: EM waves
Nature of EM waves
Visible Light
Dispersion
Monochromatic
EM waves consist of oscillating magnetic and electric fields…
400-700 nanometres
The splitting of a complex wave into its component parts when…
Light of the same wavelength (or in a VERY small range)
Nature of EM waves
EM waves consist of oscillating magnetic and electric fields…
Visible Light
400-700 nanometres
17 terms
Physics: EM Spectrum
Recall the EM spectrum in order of fre…
Recall the EM spectrum in order of wav…
How do you work out wave speed?
What type of waves are EM waves?
Gamma rays, X-rays, UV rays, visible light, infrared rays, mi…
Gamma rays, X-rays, UV rays, visible light, infrared rays, mi…
Frequency x Wavelength
Transverse
Recall the EM spectrum in order of fre…
Gamma rays, X-rays, UV rays, visible light, infrared rays, mi…
Recall the EM spectrum in order of wav…
Gamma rays, X-rays, UV rays, visible light, infrared rays, mi…
22 terms
Physics REV EM spectrum
Colours of the visible spectrum? (7)
What are radio waves used for?
What are microwaves used for?
What is infrared used for?
Red, orange, yellow, green, blue, indigo, violet
Communications in television and radio
Cooking and satellite transmissions (for phones) and send inf…
For heaters and night vision equipment
Colours of the visible spectrum? (7)
Red, orange, yellow, green, blue, indigo, violet
What are radio waves used for?
Communications in television and radio
23 terms
Physics - EM waves
What are radio waves used for?
How long are the wavelengths of radio…
How do radio waves transmit long-wave…
How do radio waves transmit TV and FM…
Communication
Longer than 10cm
The waves diffract around the earth
Waves are pointed directly at the place of reception
What are radio waves used for?
Communication
How long are the wavelengths of radio…
Longer than 10cm
16 terms
Physics: EM Spectrum
What is the speed of any EM wave?
What do waves do?
What type of waves are EM waves?
What do EM waves do when absorbed?
3 x 10⁸ m/s
Transfer energy
Transverse
Raise the object's temperature. Can also cause electrons to o…
What is the speed of any EM wave?
3 x 10⁸ m/s
What do waves do?
Transfer energy
12 terms
Physics IGCSE - EM waves
List the EM spectrum in order.
What are the uses of radio waves?
What are the uses of microwaves?
What are the dangers of microwaves?
Radio, microwaves, infrared, visible, ultraviolet, x-rays, ga…
Broadcasting, communication
Cooking, satellite transmissions
Internal heating
List the EM spectrum in order.
Radio, microwaves, infrared, visible, ultraviolet, x-rays, ga…
What are the uses of radio waves?
Broadcasting, communication
10 terms
Unit 8 Physics EM
Frequency
Wavelength
Ultraviolet Light
X-rays
How many waves can pass a given point per second, measured in…
Horizontal distance between the crests or between the troughs…
Another type of electromagnetic wave produced by the sun that…
Higher frequency than ultraviolet rays but lower than gamma r…
Frequency
How many waves can pass a given point per second, measured in…
Wavelength
Horizontal distance between the crests or between the troughs…
22 terms
Physics EM Radiation
Wave is both electric and magnetic
B. E. D. A. C. G. H. F.
Green
Green
Why is EM radiation called an EM wave? What is meant by EM?
Representation of the EM spectrum and place it in the appropr…
Which wave is shorter...Red or green light?
Which wave has the highest frequency Red or green?
Wave is both electric and magnetic
Why is EM radiation called an EM wave? What is meant by EM?
B. E. D. A. C. G. H. F.
Representation of the EM spectrum and place it in the appropr…
39 terms
Physics- EM Waves and Light- 1
What produces magnetic waves?
ALL Electromagnetic waves travel at
What is the speed of light in meter/ s…
Electromagnetic waves differ only
changing electric and magnetic fields traveling through empty…
the speed of light
3 * 10^8 meters/ second... 186,282.397 miles / second
by wavelength and frequency
What produces magnetic waves?
changing electric and magnetic fields traveling through empty…
ALL Electromagnetic waves travel at
the speed of light
10 terms
Physics: EM Radiation and Energy
What is a Source?
How does the frequency of thermal radi…
What speed does radiation travel at?
What happens when Radiation is Transmi…
An Object which emits radiation.
It increases with Temperature.
Speed of light.
It just goes through the matter, like glass.
What is a Source?
An Object which emits radiation.
How does the frequency of thermal radi…
It increases with Temperature.
7 terms
Physics - EM waves and communication
What are microwaves used for?
Why are microwaves good ?
What are radio waves used for ?
What are infrared waves used for ?
Used for satellite communication.
Because they can pass through the weather watery atmosphere t…
Used for communication. The long wave lengths diffract around…
Used for remote controls and optical fibres
What are microwaves used for?
Used for satellite communication.
Why are microwaves good ?
Because they can pass through the weather watery atmosphere t…
55 terms
physics wave and em quiz
wave
equilibrium
pulse
longitudinal
a disturbance that travels through a medium from one location…
when a slinky is stretched from end to end and is held at res…
when you jerk the slinky forward, the beginning of the slinky…
a slinky wave is a _______ wave, the pulse is transferred thr…
wave
a disturbance that travels through a medium from one location…
equilibrium
when a slinky is stretched from end to end and is held at res…
33 terms
Physics Sound/EM Vocabulary
Transverse Wave
Longitudinal Wave
Frequency
Speed
Perpendicular to wave; up/down; contained in EM
Parallel to wave; contained in earthquakes, sound, explosions…
# of waves/cycles passing a point in a period of time
Product of Wavelength/Frequency; Speed of wave depends on med…
Transverse Wave
Perpendicular to wave; up/down; contained in EM
Longitudinal Wave
Parallel to wave; contained in earthquakes, sound, explosions…
14 terms
Physics - EM Waves
Radio
Micro
Infared
Visible
10(-1) to 10(6)
10(-3) to 10(-1)
7 x 10(-7) to 10(-3)
4 x 10(-7) to 7 x 10(-7)
Radio
10(-1) to 10(6)
Micro
10(-3) to 10(-1)
8 terms
Physics - EM Waves
Properties of EM Waves
Radio Waves
Microwaves
Infrared Waves
1. Can travel through a vacuum... 2. Travel at a same speed (3…
1. TV and radio broadcasting... 2. Radio communication
1. Cooking food... 2. Sattelite/Radar communications
1. Night vision equipment... 2. Infra-red glasses... 3. Infra-red…
Properties of EM Waves
1. Can travel through a vacuum... 2. Travel at a same speed (3…
Radio Waves
1. TV and radio broadcasting... 2. Radio communication
19 terms
Physics EM waves/colors
Magenta
Yellow
Cyan
White
Red+Blue
Red+Green
Green+Blue
Red+Green+Blue
Magenta
Red+Blue
Yellow
Red+Green
24 terms
Physics em formulas
Electric force btwn 2 pt charges
Electric field
Electric field around a point charge
Electric potential energy
F=kq1q2/r^2
E=Fe/q
E=kq/r^2
Ue=qV
Electric force btwn 2 pt charges
F=kq1q2/r^2
Electric field
E=Fe/q
7 terms
Physics EM Waves
Radio
Micro
Infra-red
Visible Light
10^-1 to 10^6
10-3 to 10-1
7x10-7 to 10-3
4x10-7 to 7x10-7
Radio
10^-1 to 10^6
Micro
10-3 to 10-1
58 terms
physics waves and the em spectrum
examples of uses of radio waves
examples of uses of microwaves
examples of uses of infrared
examples of uses of visible light
radio transmitter... radio
microwave oven... microwave transmitter... television
electric fire... infrared grill
sight... photography
examples of uses of radio waves
radio transmitter... radio
examples of uses of microwaves
microwave oven... microwave transmitter... television
16 terms
Physics EM spectrum
Dual nature of light
Longest wavelength
Highest frequency
Greatest energy
Light acts a wave and a particle
Radio waves
Gamma rays
Gamma rays
Dual nature of light
Light acts a wave and a particle
Longest wavelength
Radio waves
19 terms
AP PHYSICS EM
A
B
C
d
area
magnetic field
capacitance
distance
A
area
B
magnetic field
31 terms
Physics Sound and EM Spectrum
Longitudinal wave
Mechanical wave
Pressure wave
Sound wave
has its oscillations parallel to the motion of the wave
requires a medium to travel through. None of these in a vacuum
has alternating high pressure and low pressure regions
a mechanical, longitudinal, and pressure wave
Longitudinal wave
has its oscillations parallel to the motion of the wave
Mechanical wave
requires a medium to travel through. None of these in a vacuum
17 terms
Physics EM spectrum and Light
Scientific theory
Scientific law
Aristotle
Christian Huygens
well-substantiated explanation of some aspect of the natural…
a statement based on repeated experimental observations that…
-neither a particle nor a wave... - thought that energy came out…
-believed it was an "aether" wave... -thought of the wave theory…
Scientific theory
well-substantiated explanation of some aspect of the natural…
Scientific law
a statement based on repeated experimental observations that…
17 terms
Physics Exploring the Universe/EM Spectrum
Rhyme to remember EM spectrum
Uses of Radiowaves
Uses of Microwaves
Uses of Infrared
Red Meat Is Very Unhealthy eXept Gammon
*communications... *satellite transmissions
*cooking... *communications... *satellite transmissions
*cooking... *thermal imaging... *security systems... *short range comm…
Rhyme to remember EM spectrum
Red Meat Is Very Unhealthy eXept Gammon
Uses of Radiowaves
*communications... *satellite transmissions
14 terms
EMS Physics Review
inertia
mass
weight
conduction
Newton's 1st law: the tendency of an object to resist a chang…
the amount of matter in an object.
a measure of the force of gravity pulling down on an object.
heat transferred directly from one substance to another witho…
inertia
Newton's 1st law: the tendency of an object to resist a chang…
mass
the amount of matter in an object.
39 terms
Physics - Light and EM spectrum
What is the electromagnetic spectrum?
What is the EM spectrum order?
What speed do EM waves travel at?
Which EM wave is the only one we can s…
The range of electromagnetic waves placed in order of increas…
Radio waves, microwaves, infrared, visible light, UV, X-rays,…
300,000,000 m/s
Visible light.
What is the electromagnetic spectrum?
The range of electromagnetic waves placed in order of increas…
What is the EM spectrum order?
Radio waves, microwaves, infrared, visible light, UV, X-rays,…
26 terms
Physics(em waves)
Tip: electromagnetic waves are....
Tip: all electromagnetic waves travel…
What is a wave
What is a medium
Transverse waves carrying energy and information in their ele…
Speed of light
Vibrations the transfer energy from place to place without a…
A substance some waves must travel through
Tip: electromagnetic waves are....
Transverse waves carrying energy and information in their ele…
Tip: all electromagnetic waves travel…
Speed of light
15 terms
Physics Circuits, Magnetism and EM
For electricitky to flow through a cir…
Differentiate between series and paral…
Define Magnetism
What are magnetic domains?
complete
Total resistance... Series: R=R1+R2 (increase)... Parallel: 1/e= 1/…
The properties and interactions of magnets
Region of atoms group together with magnetic fields.
For electricitky to flow through a cir…
complete
Differentiate between series and paral…
Total resistance... Series: R=R1+R2 (increase)... Parallel: 1/e= 1/…
42 terms
physical description 5 EMES
a round face
a square face
long hair
short hair
a round face
a square face
20 terms
Physics EM Questions and Formulas
Current
Voltage (resistance equation)
Voltage (energy equation)
Power (Wattage)
charge/time
resistance*current
energy transferred/charge
voltage*current
Current
charge/time
Voltage (resistance equation)
resistance*current
10 terms
Physics: The Electromagnetic Spectrum and EM waves
The electromagnetic spectrum
The wave speed of ALL EM waves in a va…
Radio waves
Micro waves
All the main types of electromagnetic radiation put on a scal…
v = 3 x 10⁸ m/s.
Have largest wavelength on EM spectrum.... Most common in commun…
They are used in microwave ovens and used for the heating of…
The electromagnetic spectrum
All the main types of electromagnetic radiation put on a scal…
The wave speed of ALL EM waves in a va…
v = 3 x 10⁸ m/s.
43 terms
physical geography em 3
floodplain
stream
drainage basin
trunk stream
the area of flat land near a stream that experiences flooding…
a channel in which water flows downhill by the force of gravity
a geographic region drained by a single trunk stream and the…
a single large stream into which smaller tributaries merge
floodplain
the area of flat land near a stream that experiences flooding…
stream
a channel in which water flows downhill by the force of gravity
23 terms
Physics color and EMS
Incandescence
Fluorescence
Intensity
White light
The process of making light with heat
a process by which atoms release light energy
a measure of the amount of light energy per second falling on…
the equal combination of all the colors of light
Incandescence
The process of making light with heat
Fluorescence
a process by which atoms release light energy
16 terms
Physical Science Chapter EM
Energy
Kinetic Energy
Potential Energy
Gravitational Potential Energy
The ability to do work or cause change, the ability to move a…
Energy that an object has due to its motion.
Stored energy that results from the position or shape of an o…
Potential energy that depends on the height of an object.
Energy
The ability to do work or cause change, the ability to move a…
Kinetic Energy
Energy that an object has due to its motion.
14 terms
Physical Science EM Quiz
What is the wavelength of a Radiowave?
What is the wavelength of a Microwave?
What is the wavelength of a Infrared w…
What is the wavelength of Visible Light?
19 cm- planet size
30 cm- 1 mm
760 nm- 1,000,000 nm
380 nm- 700 nm
What is the wavelength of a Radiowave?
19 cm- planet size
What is the wavelength of a Microwave?
30 cm- 1 mm
27 terms
Physics Light Waves & EM Waves
Electromagnetic wave
Transmission
Absorption
Scattering
a wave consisting of an osculating electric field and magneti…
EM waves pass through matter
EM waves absorbed by matter
EM wave is altered by the matter, and leaves in many directio…
Electromagnetic wave
a wave consisting of an osculating electric field and magneti…
Transmission
EM waves pass through matter
39 terms
physical science em test
electromagnetic waves are waves create…
true or false: em waves dont need anyt…
what are all em waves created by?
true or false: how fast they move (fre…
electric: magnetic
true
charged particles (usually electrons) moving
true
electromagnetic waves are waves create…
electric: magnetic
true or false: em waves dont need anyt…
true
7 terms
Physics - EM wavelength order of magnitude
Radio
Microwave
Infrared
Visible
1 - 10^5
10^-1 - 10^-3
10^-4 - 10^-6
10^-7
Radio
1 - 10^5
Microwave
10^-1 - 10^-3
24 terms
science - physics revision - EM waves
Em radiation - frequency...
Em radiation - wavelength...
1. RADIO WAVES uses
1. RADIO WAVES risks
increases as you go down
increases as you go up
tv and radio signals, communicating/broadcasts
none
Em radiation - frequency...
increases as you go down
Em radiation - wavelength...
increases as you go up
20 terms
Physics ch. 14 EM test
Something that is heated until it glow…
Infrared light has
EM energy travels more slowly through…
Which phenomenon do EM waves exhibit t…
Incandescent
Shorter wavelengths than red light has
Vacuum
Gravitational lensing
Something that is heated until it glow…
Incandescent
Infrared light has
Shorter wavelengths than red light has
25 terms
Physics 1111 Waves, EM Waves, Optics
Which statements about images are corr…
Is it possible to see a virtual image?
Starting from very far away, an object…
A and D
A virtual image cannot be formed on a screen.
Yes because the rays that appear to come from a virtual image…
The image eventually changes from real to virtual.
A ball swinging at the end of a massless string, as shown in…
Which statements about images are corr…
A virtual image cannot be formed on a screen.
Is it possible to see a virtual image?
Yes because the rays that appear to come from a virtual image…
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