✨ Free preview
🛹
Friction and Surfaces
Investigate how rough and smooth surfaces change how easily things slide and roll.
⏱ 16 min❓ 8 questions
What you'll be able to do
- ✔I know friction is a force that slows things down
- ✔I can compare rough and smooth surfaces
- ✔I can plan a fair test of how far things slide
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.
- ⚖️True or false — Read the statement and decide if it's true or false.
👪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.
Sign in and subscribe to unlock the full lesson and save your progress.
Curriculum: AC9S3U03