Forces and Newton's laws
Resolve forces; apply Newton's laws to connected particles, pulleys and inclined planes
What you'll learn
- 1
Imagine pushing a heavy 🛒 shopping trolley. It doesn't move until you push it, and once it's moving, it doesn't stop by itself — it keeps rolling until something stops it.
- 2
What does a force do to an object?
- 3
Use the number line to show what happens when you push a 5 kg block with a force of 10 N. The block's speed changes by 2 m/s each second.
- 4
A 3 kg ball is pushed with a force of 6 N. How fast does it speed up each second? (Hint: Force = mass × acceleration)
- 5
If you push a 4 kg box with a force of 12 N, what is its acceleration?
- 6
Two kids push a 10 kg sled. One pushes north with 20 N, the other pushes south with 12 N. Find the net force and acceleration.
- 7
A 5 kg object has a net force of 15 N acting on it. What is its acceleration?
Practise Forces and Newton's laws with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.