EASY
Upper Secondary-IGCSE
IMPORTANT
Earn 100

The Earth’s rotation on its axis and also its rotation around the Sun are cyclical and periodic. State how long the Earth takes to orbit the Sun once.

Important Questions on Earth and the Solar System

MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.1>Q 2
Explain the observations that lead us to the conclusion that the Earth spins on its axis.
HARD
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.1>Q 3
Explain the phases of the Moon.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.1>Q 4
The Earth orbits the Sun at an average distance of 1.5×108 km and the period of orbit is 365 days. Calculate the average orbital speed of the Earth around the Sun. Express the result in kmh. Correct the answer to five decimal places.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.2>Q 2
What shape is the orbit of Mars as shown in the following figure?

Question Image

MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.2>Q 3
List the rocky planets that orbit the Sun.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 24 - Earth and the Solar System>Exercise 24.2>Q 5
Explain how the Solar System formed and how it led to some planets being rocky and others being gaseous.