Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
×
eraser
Reset score!
Oops!
×
magnet
Take 25 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 25 points!
Oops!
15
×
In radio communication and broadcasting, what device is used to convert sound waves to electrical signals?
microphone
Oops!
Check
Okay!
Check
20
×
What does RADAR mean?
radio detection and ranging
Oops!
Check
Okay!
Check
15
×
Which EM wave is used in fiber optic communication, photography and illumination?
visible light
Oops!
Check
Okay!
Check
15
×
What term refers to the use of light in medical treatment of a variety of ailments such as topical infections?
phototherapy
Oops!
Check
Okay!
Check
15
×
Which EM wave is used to show the temperature variation of the body?
infrared
Oops!
Check
Okay!
Check
15
×
Which EM wave helps our body to produce a certain vitamin that is essential in our body's calcium absorption?
ultraviolet
Oops!
Check
Okay!
Check
15
×
These are long, thin strands arranged in bundles and are used in communication.
fiber optics or optical fibers
Oops!
Check
Okay!
Check
15
×
A mobile phone works by transmitting radio waves which are received by cell sites to a target mobile phone. True or False
False
Oops!
Check
Okay!
Check
15
×
Which EM wave is used to treat cancer?
gamma
Oops!
Check
Okay!
Check
×
trap
No points!
Oops!
×
gold
Win 50 points!
Okay!
×
gift
Win 25 points!
Okay!
×
baam
Lose 25 points!
Oops!
15
×
Radio and sound waves both travel at the speed of light. True or False
False
Oops!
Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
gold
Win 50 points!
Okay!
×
shark
Other team loses 20 points!
Okay!
×
lifesaver
Give 5 points!
Oops!
15
×
Long wavelength X-rays can penetrate the flesh and our bones. True or False
False
Oops!
Check
Okay!
Check
15
×
Which EM wave is used in sterilizing water from drinking fountains?
ultraviolet
Oops!
Check
Okay!
Check
15
×
In radio communication, what does FM stand for?
frequency modulation
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies
