Space Physics
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Earth and the Solar System
SubtopicEarth and the Solar System under Space Physics for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
The Moon does not produce its own light. Why does it appear bright when viewed from Earth?
A.It is made of hot, glowing gases
B.It absorbs light and releases it at night
C.It reflects light from the distant stars
D.It reflects light from the Sun
- 2.
What primary physical process causes the cycle of day and night on Earth?
A.The Earth's orbit around the Sun
B.The Earth's rotation on its axis
C.The Sun's rotation on its axis
D.The Moon's orbit around the Earth
- 3.
Which of the following objects is located at the center of our Solar System?
A.The Moon
B.Jupiter
C.The Sun
D.The Earth
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
SubtopicStars and the Universe under Space Physics for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
What is the term used to describe the increase in the observed wavelength of light from distant galaxies as they move away from us?
A.Redshift
B.Blueshift
C.Refraction
D.The Doppler Effect of Sound
- 2.
A light-year is a unit used by astronomers to measure which of the following?
A.The time it takes for light to travel from the Sun to Earth
B.The age of a star since its formation
C.The distance light travels in a vacuum in one year
D.The speed at which a galaxy moves away from Earth
- 3.
What is the primary source of energy for a star during its stable 'Main Sequence' phase?
A.Chemical combustion of methane gas
B.Nuclear fusion of hydrogen nuclei into helium
C.Gravitational potential energy from continuous collapse
D.Nuclear fission of heavy elements like uranium
Download the worksheet for Space Physics - Stars and the Universe to practice offline. It includes additional chapter-level practice questions.
The Big Bang Theory and Redshift
SubtopicThe Big Bang Theory and Redshift under Space Physics for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which observation regarding distant galaxies provides evidence that the universe is expanding?
A.Distant galaxies are much larger than nearby ones.
B.Distant galaxies appear bluer than nearby ones.
C.Distant galaxies are moving towards the Milky Way.
D.The further away a galaxy is, the greater its redshift.
- 2.
What is Cosmic Microwave Background Radiation (CMBR)?
A.Radiation left over from the early stages of the universe.
B.Energy emitted by black holes at the center of the Milky Way.
C.Radio waves used by scientists to communicate with satellites.
D.Light reflected off the edge of the solar system.
- 3.
According to the Big Bang Theory, how did the universe begin?
A.As a cold, empty void that slowly filled with matter.
B.From a massive star that exploded in the center of the galaxy.
C.From an extremely hot and dense singularity that began expanding.
D.Through the steady and continuous creation of matter over infinite time.
Download the worksheet for Space Physics - The Big Bang Theory and Redshift to practice offline. It includes additional chapter-level practice questions.