Science Quiz #701
Science and Nature Quiz for 22 June 2022
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1
Q1.
What is Neptune's main satellite?
Select from the options above.
2
Q2.
Churning cream produces what?
Select from the options above.
3
Q3.
A plasma display panel contains many tiny cells between two panels of glass which hold a mixture of noble gases. The gas in the cells is electrically turned into a plasma which emits ultraviolet light which then excites what to emit visible light?
Select from the options above.
4
Q4.
How many days are there in the last three months of the Western calendar year?
Select from the options above.
5
Q5.
What is a heterodyne?
A
A radiotelegraph signal
B
A signal frequency created by combining or mixing two other frequencies
Select from the options above.
6
Q6.
Why is the ratio of the speed of a projectile to the speed of sound called the Mach number?
A
It is a shortened form of the Italian word "Macho"
B
It is an acronym for "Moving Article Calculated for Haste"
C
It is named after the first plane to exceed the sound barrier
D
It is named after an Austrian physicist
Select from the options above.
7
Q7.
What is a "devil's coach horse"?
Select from the options above.