Famous Scientists & Descriptions of Electromagnetic Spectrum Flashcards

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1
Q

APPLICATIONS OF GAMMA RAYS

A

RADIOTHERAPY TO TREAT TUMOURS AND CANCERS

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2
Q

APPLICATIONS OF X-RAY

A

DIAGNOSING BONE FRACTURES & AIRPORT SECURITY SCANNER

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3
Q

APPLICATIONS OF ULTRAVIOLET

A

SECURITY MARKINGS, STERILIZATION OF WATER IN DRINKING FOUNTAINS, FLOURESCENCE

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4
Q

APPLICATIONS OF VISIBLE LIGHT

A

ARTIFICIAL LIGHTS, ELECTRONICS SCREENS & OPTICAL FIBERS

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5
Q

INFRARED APPLICATIONS

A

THERMAL IMAGING, NIGHT VISION GOGGLES & REMOTE CONTROLS (IR CONTROL)

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6
Q

MICROWAVES APPLICATIONS

A

RADAR (Radio Detection & Ranging)
Satellite Communication
Terrestrial Communication

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7
Q

Showed experimental evidence of electromagnetic waves and their link to light

A

HEINRICH HERTZ

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8
Q

Contributed in developing equations that showed the relationships of electricity and magnetism

A

James Clark Maxwell

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9
Q

Formulated the principle behind electromagnetic induction

A

Michael Faraday

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10
Q

Demonstrated the magnetic effect based on the direction of the current

A

ANDRE-MARIE AMPERE

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11
Q

Showed how a current carrying wire behaves like a magnet

A

HANS CHRISTIAN OERSTED

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12
Q

Treats tumours & cancer through the process they call radiotherapy

A

Gamma Rays

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13
Q

_____ sterilize surgical instruments because
they easily penetrate through materials and the energy
they release kills bacteria and other microorganisms.

A

Gamma Rays

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14
Q

Sensitive documents such as credit cards, banknotes, and
passports include a ___ watermark that is only seen under
__ emitting light.

A

Security Markings, Ultraviolet

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15
Q

____ light disinfection is one water treatment system
that can be used to remove most forms of microbiological
contamination from water.

A

Ultraviolet, Sterilization of drinking fountains

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16
Q

_____ are produced using an _____ tube. They are emitted
when fast moving electrons hit a metal target

A

X-ray

17
Q

_____ wavelength _____ can penetrate the flesh but not the
bones that’s why it is used in diagnosing bone fractures.

A

Long wavelength x-rays

18
Q

_____ wavelength _____ can penetrate through metals
which can be used in _______

A

Short wavelength x-rays, Airport Security Scanners

19
Q

Some washing powder contains _______ chemicals which
glow in sunlight. This makes your shirt look whiter than
white in daylight.

A

Flourescence, Ultraviolet

20
Q

One use of _______ in medicine is ______, a
flexible tube with tiny camera that is used to observe the
internal parts of the body.

A

Visible Light, optic fibers, endoscope

21
Q

any light
source that produce light instead of natural lights
produced by the sun.

A

Artificial Lights

22
Q

Enables us to see things around us. It also gives light to
the screen of most electronic devices

A

Visible Light

23
Q

use _______ technology to
capture the ______ being emitted as heat by objects in
the field of view.

A

Night Vision Goggles, thermal imaging & infrared

24
Q

_____ are used to show the temperature variation of the
body

A

Thermal Imaging through Infrared Scanners

25
Q

uses LED lights to transmit
signals to control devices.

A

Remote Control (IR Remote)

26
Q

is a detection
system used to determine the range, angle or velocity of
objects. It can be used to detect aircraft, ships, and the
like.

A

RADAR (Radio Detection & Ranging)

27
Q

Thus, they create
molecular friction which produces heat that will cook the
food.

A

Cooking, Microwave

28
Q

A _______ is a radio transmitter and receiver that uses
________. ________ depend on overlapping
network of ____. Each __ has its tower that receives and
sends microwave signals.

A

Cellphone, Terrestrial Communication, Microwaves

29
Q

____ are used in satellite communications because
it can penetrate the earth’s atmosphere.

A

Satellite Communication & Microwaves

30
Q

It has a long
wavelength capable of transmitting sound and picture
information over long distances.

A

Radio/Television Signals under Radio Waves

31
Q

Is a space-based
navigation system that provides geographical position and
time information anywhere on or near the earth. It
communicates with stations on the ground using ______

A

GPS (Global Positioning System) Radio Waves

32
Q

It is a medical imaging technique that uses powerful
magnets, computer and radio waves to make detailed
pictures inside your body.

A

MRI (Magnetic Resonance Imagery)