logo

Learning objective

Know that the current estimate for the Hubble constant is approximately 18 × 10² per second.

Read the explanation, check the common trap, then practise with flashcards and questions.

Practise this topicRead the exam answerTopic hub

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE PhysicsSpace physicsSupplement content

Study support

Understand this objective

Quick explanation

Know that the current estimate for the Hubble constant is approximately 18 × 10² per second

  • This point belongs to The Universe, especially The Universe outcomes.
  • You need to be able to know that the current estimate for the Hubble constant is approximately 18 × 10² per second.
  • The key ideas to know are Know.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Know

Why it matters

This objective helps connect The Universe outcomes to exam-style questions, flashcards, and revision notes for The Universe.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 4 structured question: The Universe

Paper 4Theory (Extended)1 marks

Description

Hubble Constant

The current estimate for the Hubble constant is approximately 18 × 10² per second, which indicates the rate of expansion of the universe.

  1. a

    State the current estimate for the Hubble constant.

    Aim for approximately 1 distinct marking point.

    [1]
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route

Cambridge IGCSEPhysics resources