Famous Scientists & Descriptions of Electromagnetic Spectrum

Question 1

APPLICATIONS OF GAMMA RAYS

Answer 1

RADIOTHERAPY TO TREAT TUMOURS AND CANCERS

Question 2

APPLICATIONS OF X-RAY

Answer 2

DIAGNOSING BONE FRACTURES & AIRPORT SECURITY SCANNER

Question 3

APPLICATIONS OF ULTRAVIOLET

Answer 3

SECURITY MARKINGS, STERILIZATION OF WATER IN DRINKING FOUNTAINS, FLOURESCENCE

Question 4

APPLICATIONS OF VISIBLE LIGHT

Answer 4

ARTIFICIAL LIGHTS, ELECTRONICS SCREENS & OPTICAL FIBERS

Question 5

INFRARED APPLICATIONS

Answer 5

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

Question 6

MICROWAVES APPLICATIONS

Answer 6

RADAR (Radio Detection & Ranging)
Satellite Communication
Terrestrial Communication

Question 7

Showed experimental evidence of electromagnetic waves and their link to light

Answer 7

HEINRICH HERTZ

Question 8

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

Answer 8

James Clark Maxwell

Question 9

Formulated the principle behind electromagnetic induction

Answer 9

Michael Faraday

Question 10

Demonstrated the magnetic effect based on the direction of the current

Answer 10

ANDRE-MARIE AMPERE

Question 11

Showed how a current carrying wire behaves like a magnet

Answer 11

HANS CHRISTIAN OERSTED

Question 12

Treats tumours & cancer through the process they call radiotherapy

Answer 12

Gamma Rays

Question 13

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

Answer 13

Gamma Rays

Question 14

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

Answer 14

Security Markings, Ultraviolet

Question 15

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

Answer 15

Ultraviolet, Sterilization of drinking fountains

Question 16

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

Answer 16

X-ray

Question 17

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

Answer 17

Long wavelength x-rays

Question 18

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

Answer 18

Short wavelength x-rays, Airport Security Scanners

Question 19

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

Answer 19

Flourescence, Ultraviolet

Question 20

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

Answer 20

Visible Light, optic fibers, endoscope

Question 21

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

Answer 21

Artificial Lights

Question 22

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

Answer 22

Visible Light

Question 23

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

Answer 23

Night Vision Goggles, thermal imaging & infrared

Question 24

_____ are used to show the temperature variation of the
body

Answer 24

Thermal Imaging through Infrared Scanners

Question 25

uses LED lights to transmit signals to control devices.

Answer 25

Remote Control (IR Remote)

Question 26

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.

Answer 26

RADAR (Radio Detection & Ranging)

Question 27

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

Answer 27

Cooking, Microwave

Question 28

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

Answer 28

Cellphone, Terrestrial Communication, Microwaves

Question 29

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

Answer 29

Satellite Communication & Microwaves

Question 30

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

Answer 30

Radio/Television Signals under Radio Waves

Question 31

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 ______

Answer 31

GPS (Global Positioning System) Radio Waves

Question 32

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

Answer 32

MRI (Magnetic Resonance Imagery)