Pressure
Class 8 Science: force and pressure
Push with the same force through a nail point, a shoe heel or a camel's foot. Why do some sink in and others don't?
Words to know
- Pressure
- Force acting on each unit of area: pressure = force ÷ area.
- Pascal (Pa)
- The unit of pressure: 1 newton on 1 square metre.
- Area
- How big a surface is, in square metres.
- Force
- A push or pull, in newtons.
Quick check
Answer 3 questions to check what you learned.
Try at home
Press a pencil into a ball of dough with the flat end, then with the sharp point, using the same push. Which goes deeper? That is pressure.