Question 1
The Sun radiates most of its energy in three regions of the electromagnetic spectrum.
In the pie chart, region 1 is infrared radiation and region 2 is visible radiation.
What is region 3 ?
A
microwave
B
radio
C
ultraviolet
D
X-ray
Question 2
The nearest star to the Sun is about four light-years away from the Earth.
A student makes three statements about the star.
1 Light from the star takes about four years to reach the Earth.
2 Light from the Sun takes about four years to travel to the star and back to the Earth.
3 The star is outside our galaxy.
Which statements are correct?
A
1,2 and 3
B
1 and 3 only
C
1 only
D
2 and 3 only
Question 3
It is summer in the northern hemisphere of the Earth in June.
Which statement explains why?
A
The Earth is closer to the Sun in June.
B
The Earth spins on its axis in the opposite direction to that in which it rotates around the Sun.
C
The Moon is full in June.
D
The north pole of the axis of the Earth's rotation is tilted towards the Sun in June.
Question 4
Which planet in our Solar System is nearest to the Sun and what is the nature of the planet?
planet
nature
Mercury
rocky
Mercury
gaseous
Venus
rocky
Venus
gaseous
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