Units, prefixes and standard form
Convert prefixes, squared and cubed units. Write numbers in standard form.
Choose a chapter or answer file. Check the ISBN against your book.
Student book: ISBN 9780007590223
Collins supplies one Word document for Student Book 1. It is a DOCX download, containing chapter assignments and practice-question answers. Match your edition and question label. The file opens in a word processor; it is not a PDF.
1 publisher-hosted answer files. Checked on 7 October 2026.
Open the publisher’s answer collection →
Check the publisher’s book details
Answers open on the publisher’s website. PhysicsHelp is an independent site.
Convert prefixes, squared and cubed units. Write numbers in standard form.
Work with absolute and percentage uncertainty, repeated readings and timing.
Choose equations and solve constant-acceleration problems with signs, braking and vertical motion.
Related practice uses original PhysicsHelp questions.