Understand that the strength of the Sun's gravitational field diminishes with distance, and that the orbital speeds of planets decrease as they move further from the Sun.

Quick explanation

Understand that the strength of the Sun's gravitational field diminishes with distance, and that the orbital speeds of planets decrease as they move further from the Sun

• This point belongs to The Solar System, especially The Solar System outcomes.
• You need to be able to understand that the strength of the Sun's gravitational field diminishes with distance, and that the orbital speeds of planets decrease as they move further from the Sun.
• The key ideas to know are Know and Explain.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.