1. The celestial body with the greatest influence on our tides is the:
A moon
B sun
C nearest planet |
2. Approximately how many high and low tides are there in a period of 24 hours?
A 1 high and 1 low
B 2 high and 2 low
C 1 high and 2 low |
3. The tides which cause most damage to our beaches and occur at full and new moon phases are:
A neap tides
B spring tides
C low tides |
4. The tides that occur at first and last quarter phases are:
A neap
B spring
C high |
5. A solar eclipse occurs when people on earth cannot see the:
A 'morning star'
B moon
C sun |
6. A lunar eclipse occurs when people on earth cannot see the:
A moon
B sun
C Venus |
7. The darkest part of the shadow cast in an eclipse is the:
A penumbra
B umbrella
C umbra |
8. In what order of alignment are the sun, the earth and the moon in a solar eclipse?
A sun, earth, moon
B sun, moon, earth
C moon, sun, earth |
9. In what order of alignment are the sun, the earth and the moon in a lunar eclipse?
Asun, moon, earth
Bsun, earth, moon
Cmoon, sun, earth |
10. The time of rotation of the earth on its axis is about:
A24 hours
B12 hours
C1 year |
11. The sun appears to 'rise' in the east and 'set' in the west because:
Athe stars revolve around the earth from north to south
Bthe earth rotates from west to east
Cthe earth rotates from east to west |
12. At any one time, the amount of the earth illuminated by sunlight is:
A100%
Bquarter
Chalf |
13. The tilt of the earth on its axis causes:
Aday and night to be of different lengths in different parts of the world
Bthe seasons
Csummer and winter |
14. The correct order of the seasons is:
Aspring summer, winter, autumn
Bsummer, winter, spring, autumn
Cspring, summer, autumn, winter |
15. The seasons depend on:
Athe tilt of the earth on its axis
Bthe angle of sunlight at differenet parts of the world
Cthe distance between the earth and the sun |