Different surfaces in real life (non-statutory)
I can explain why some surfaces are suitable for different jobs, and give examples from real life.
- Year 3
Different surfaces in real life (non-statutory)
I can explain why some surfaces are suitable for different jobs, and give examples from real life.
Lesson details
Key learning points
- Friction can be a useful force.
- Friction can be an unhelpful force.
- Scientists, designers and engineers need to choose materials with properties suitable for their work or products.
- Large amounts of friction can create heat.
Keywords
Frictional forces - Frictional forces are forces that act between the surfaces of objects.
Surface - The surface is the top or outside layer of an object or material.
Grip - A grip is a firm hold or tight grasp.
Properties - A material's properties are its qualities, such as how hard or soft it is or whether it is rough or smooth.
Common misconception
Friction always hinders motion therefore you always want to eliminate friction.
Multiple examples of positive uses of friction, including to help start motion by pushing off, are included.
Equipment
See additional material for further support and guidance.
Content guidance
- Risk assessment required - equipment
- Exploration of objects
Supervision
Adult supervision required
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1. forces slow down moving objects.
Q2.Which word is used to describe what a material can do or how it behaves?
Q3.The rougher the surface, the the frictional force.
Q4.Starting with the surface that would produce the least frictional force, order these surfaces by how much they would slow down a marble travelling on them.
Q5.Starting with the ice rink, order these surfaces by the amount of frictional force they would produce when an object moves across them.
Q6.Match each investigation feature with its description.
