Physical Quantities, Units and Measurement topic check · G3 Physics and O-Level Physics
Check what you know about Measurement, practise what needs work, then check your progress and return for a later review.
Learning objectives
- Represent a physical quantity with a numerical magnitude and unit
- Recall the six prescribed SI base quantities and their units
- Use the prescribed SI prefixes from nano to tera
- Compare orders of magnitude from a typical atom to the Earth
- Select and justify measuring instruments by range and precision
- Distinguish scalar and vector quantities and give examples
- Add two vectors graphically to determine a resultant
Your next step
Check what I know
Start with a check of what you already know. Answer each question and say how sure you are. We'll use this to suggest what to practise next.
Finding your next step…
Check what I know
Start here to see which parts you already know.
About 8 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Answer 7 short questions. It shows what to work on next and doesn't count towards course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Practise
Work through questions with marking and feedback as you learn.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Questions are picked at random each time you start. You'll see the answer after each question. It's for practice only and doesn't count towards course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Practise after feedback
After a check, practise the skills it showed you need to work on.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Questions are picked at random each time you start. You'll see the answer after each question. It's for practice only and doesn't count towards course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Check my progress
When you feel ready, answer on your own to show what you can do.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Answer 7 questions. You'll see your score, the answers and explanations at the end. Your result can count towards your course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Check again
After practising what your progress check showed, check those skills again.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Answer 7 questions. You'll see your score, the answers and explanations at the end. Your result can count towards your course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Review
Come back later to see whether your learning has lasted.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Answer 7 questions. You'll see your score, the answers and explanations at the end. A scheduled review counts towards your course progress only when it is due.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Practise: multiple-choice
Work through questions with marking and feedback as you learn.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Questions are picked at random each time you start. You'll see the answer after each question. It's for practice only and doesn't count towards course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Practise: written
Work through questions with marking and feedback as you learn.
About 10 minutes
Checking question availability…
Time is up, but your answers have not been submitted yet. Check your connection and try again.
Questions are picked at random each time you start. You'll see the answer after each question. It's for practice only and doesn't count towards course progress.
Getting your questions…
Recent attempts
History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
Next step
Vernier caliper trainer
Interactive vernier readings with a static instrument-reading fallback.
About 8 minutes
Practise choosing the vernier reading from labelled main-scale and vernier-scale values.
Micrometer trainer
Interactive micrometer readings with a static instrument-reading fallback.
About 8 minutes
Practise combining the sleeve and thimble readings and checking for zero error.