Space Physics

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Earth and the Solar System

Subtopic

Earth and the Solar System under Space Physics for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$As the distance of a planet from the Sun increases, how does its orbital period change?$
A. $The orbital period increases.$
B. $The orbital period decreases.$
C. $The orbital period remains the same.$
D. $The orbital period first increases, then decreases.$
2.
$What is the primary source of the Sun's energy?$
A. $Chemical combustion of hydrogen with oxygen$
B. $Nuclear fission of uranium in the core$
C. $Nuclear fusion of hydrogen nuclei into helium nuclei$
D. $Gravitational heating from the collapse of the solar nebula$
3.
$The diagram shows a partial classification of objects within our Solar System. Based on the classification, which of the following planets belongs in the box labeled 'Terrestrial Planets'?$
A. $Jupiter$
B. $Saturn$
C. $Neptune$
D. $Mars$

Download the worksheet for Space Physics - Earth and the Solar System to practice offline. It includes additional chapter-level practice questions.

Stars and the Universe

Subtopic

Stars and the Universe under Space Physics for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$What is the approximate speed of light in a vacuum, often used to define a 'light-year'?$
A. $3.0 \times 10^{8}$
B. $1.5 \times 10^{11}$
C. $9.5 \times 10^{15}$
D. $3.0 \times 10^{5}$
2.
$Which of the following best describes the 'Main Sequence' stage of a star's life?$
A. $The star is expanding rapidly after exhausting its fuel$
B. $The star is in a stable state with balanced inward gravity and outward radiation pressure$
C. $The star has collapsed into a very dense object after a supernova$
D. $The star is cooling down as a white dwarf$
3.
$The diagram shows the life cycle of a star significantly more massive than our Sun. What stage is represented by label 'D'?$
A. $White Dwarf$
B. $Red Giant$
C. $Black Hole or Neutron Star$
D. $Planetary Nebula$

Download the worksheet for Space Physics - Stars and the Universe to practice offline. It includes additional chapter-level practice questions.

Space Physics - IGCSE Grade 12 Physics Notes & Revision | Krit.club