Science Quiz #652
Science and Nature Quiz for 14 July 2021
A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.
1
Q1.
What was an armillary sphere designed to do?
A
Enable astronomers to calculate the position of stars with respect to the horizon and the meridian
B
Represent kingship in the pommel of a royal sword
C
Determine latitude and longitude
D
Demonstrate the principal circles of the heavens, in an earth-centred or sun-centred universe
Select from the options above.
2
Q2.
The 2020 Nobel Prize in Physics in part honoured the discovery that a robust prediction of the general theory of relativity is what?
A
Cosmic microwave background radiation
B
A supermassive compact object at the centre of our galaxy
Select from the options above.
3
Q3.
What is the most noticeable reaction when sodium is put into water?
A
A flame and a virtually immediate explosion
B
The sodium dissolves instantly
C
The sodium turns yellow
Select from the options above.
4
Q4.
Iodine used as a topical wash rather than taken internally has what effect?
B
It protects against sunburn
C
Its fumes unblock sinuses
D
It kills bacteria, e.g. in and around mild cuts and scrapes
Select from the options above.
5
Q5.
Red sea plume or limu kohu (asparagopsis taxiformis) is a species of seaweed being investigated for what?
A
A role in coral regeneration
C
Reducing methane in sheep and cattle burps
Select from the options above.
6
Q6.
Which of these is a portable media player launched by Apple on October 23, 2001?
Select from the options above.
7
Q7.
What is the process of decreasing or eliminating an unwanted magnetic field, a term first used by Commander Charles F. Goodeve, RCNVR, during World War II while trying to counter German mines?
D
Lambert Point Deperming
Select from the options above.