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Science Quiz #237

Science and Nature Quiz for 31 July 2013

A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

0 out of ?
1

How many degrees are there in the angle on either side of a straight line?

A
90
B
180
C
360
D
0
Select from the options above.
2

Which of these was the name of a mission to explore Mars?

Note: This question was updated in January 2022
A
Discovery 4
B
Beagle II
C
Apollo 13
D
The Manhattan Project
Select from the options above.
3

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?

A
Crystals
B
Light emitting diodes
C
Pixels
D
Phosphorus
Select from the options above.
4

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.
5

Which of these is a type of butterfly?

A
Lettuce green
B
Cabbage white
C
Broccoli blue
D
Turnip brown
Select from the options above.
6

What is a "devil's coach horse"?

A
Beetle
B
Any sign of bad luck
C
Gathering storm clouds
D
Typhoon
Select from the options above.
7

A nectarine is a shiny-skinned variety of what?

A
Orange
B
Apple
C
Peach
D
Plum
Select from the options above.
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