CAIE IGCSE Physics 6 Space Physics Questions

Covered syllabus points

6.1.1 The Earth 6.1.2 The Solar System 6.2.1 The Sun as a star 6.2.2 Stars 6.2.3 The Universe

[Maximum number: 7]

(a)

The Solar System includes the Sun and planets.
State two other types of natural object that orbit the Sun.
1
2

[ 2 ]

(b)

State the shape of the orbits of the planets.

[ 1 ]

(c)

Fig. 10.1 shows the orbit of an object around the Sun. At point A, the object is closest to the Sun. At point B, the object is furthest away from the Sun.

Fig. 10.1

State and explain the energy transfer as the object travels from point A to point B.
statement
explanation

[ 2 ]

(d)

Jupiter is $7.8 \times 10^{11} \mathrm{~m}$ from the Sun. The speed of light in a vacuum is $3.0 \times 10^{8} \mathrm{~m} / \mathrm{s}$ .

Calculate the time taken for light from the Sun to reach Jupiter.
time =

[ 2 ]

$2.6 \times 10^{3} \mathrm{~s}$ $v=s / t \mathbf{O R}(t=) s / v \mathbf{O R} 7.8 \times 10^{11} / 3.0 \times 10^{8}$

[Maximum number: 1]

In which regions of the electromagnetic spectrum does the Sun radiate most of its energy?

microwave to infrared

ultraviolet to X-ray

infrared to ultraviolet

radio to infrared

[Maximum number: 1]

The nearest star to the Sun is 4 light-years away.
A spaceship travels at 0.1 % of the speed of light.
What is the total time taken for a journey from the Sun to the star and back again?

400 years

800 years

4000 years

8000 years

[Maximum number: 1]

What is the approximate diameter of the Milky Way?

100000 kilometres

1000000 kilometres

100000 light-years

1000000 light-years

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CAIE IGCSE Physics 6 Space Physics Topic Practice

Covered syllabus points

Question 1

Question (a)

Question (b)

Question (c)

Question (d)

Question 2

Question 3

Question 4