Contact forces
I can observe that some forces need contact between two objects and give examples from real life.
- Year 3
Contact forces
I can observe that some forces need contact between two objects and give examples from real life.
Lesson details
Key learning points
- Pushes and pulls are forces
- Some forces are contact forces
- Contact forces are forces that act between two objects that are physically touching each other
- Pushing a car up a hill and kicking a ball are examples of contact forces
Keywords
Force - A force is a push or a pull. Forces can make objects change speed, change direction, or change shape.
Push - A push is a force that moves an object further away.
Pull - A pull is force that brings an object closer.
Contact force - Contact forces occur when objects are touching each other.
Venn diagram - A Venn diagram is a way of displaying how you group items. It is made up of overlapping circles.
Common misconception
Kicks/throws and catches are not pushes and pulls.
Explicit explanation that kicks and throws are pushes, and catches are pulls; that pushes and pulls can involve short term contact.
Equipment
Task 3: elastic bands, a stringed instrument, scissors and paper, a wheeled toy
Content guidance
- Exploration of objects
Supervision
Adult supervision recommended
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which of these pictures shows a squash?
Q2.A force happens when two surfaces move over each other.
Q3.What do friction forces do to moving objects?
Q4.Which material can you squash?
Q5.How would you make this light switch work?
Q6.Are friction forces helpful or unhelpful for these activities? Match the word to the activity.
Assessment exit quiz
6 Questions
Q1.Forces are and pulls.
Q2.Which of these activities involves both pushing and pulling?
Q3.Match the forces word to the activity.
