General Science Flashcards
1
Q
What is a Hygrometer used for?
A
Measuring moisture
2
Q
What is a Hydrometer used for?
A
Measuring gravity of liquids
3
Q
What measures atmospheric pressure?
A
A Barometer
4
Q
If you decrease the focal length the image…
A
magnifies!
5
Q
What is a Geiger-Muller (GM) counter used for?
A
Measuring all sorts of radiation: alpha gamma etc
6
Q
Escape Velocity of the Earth
A
11 km/s (7mi/s)
7
Q
Length of Planetary Orbits:
A
Mercury 88 days; Venus 225 days, Mars 690; Jupiter 12 years; Saturn 29 years;
8
Q
Length of Planetary Rotational Periods
A
Mercury 58 days; Venus 116 days; Mars 1 day; Jupiter 9 hours; Saturn 10 hours; Neptune 16hrs; Uranus 17 hours
9
Q
Gerontology is the science of…?
A
Ageing
10
Q
What is Albedo?
A
The percentage of radiant energy reflected by a surface
