Exploring St Elmo's Fire
Interactive Video
•
Life Skills, Biology, Physics, Science
•
KG - University
•
Hard
Wayground Content
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the visual appearance of St Elmo's Fire?
A greenish glow with a whistling sound
A bright red glow with a hissing sound
A bright bluish purplish glow, sometimes with a buzzing sound
A dim yellow glow with a crackling sound
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who is St Elmo, after whom the phenomenon is named?
A mythical sea creature
A Christian saint and patron of sailors
A scientist who discovered the phenomenon
A famous sailor from the 18th century
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the luminous effect of St Elmo's Fire?
Reflection of sunlight on water
Combustion of gases in the atmosphere
Corona discharge from sharp objects
Magnetic fields around the Earth
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does plasma tend to concentrate in the context of St Elmo's Fire?
Flat surfaces like the ocean
On the ground during a storm
Sharp points like ship masts
Inside closed spaces
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one technological application of corona discharge mentioned in the video?
Generating electricity for homes
Heating water for industrial use
Creating ozone for disinfection
Producing sound waves for communication
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