Speed, velocity and acceleration

Distinguish scalar speed from vector velocity and calculate speed and acceleration from real motion data.

⏱ 18 min❓ 8 questions

What you'll be able to do

✔I can explain the difference between distance and displacement, and between speed and velocity
✔I can calculate average speed and acceleration, converting between km/h and m/s
✔I can recognise that speeding up, slowing down and changing direction are all accelerations

How this works

1Read the short explanations first — they teach you what you need before each question.
2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

8 questions and 1 quick teaching card, including:

🔘Multiple choice — Tap the answer you think is best, then check it.
🔢Number answer — Work out the answer and type the number.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Curriculum: AC9S10U05