Forces and Motion | Electricity and Magnetism | Properties of Matter

How can the floor make a force?

Teaching Guidance for 5-11 11-14 Supporting Physics Teaching

How can a floor push?

Wrong Track: How can the floor push up on Papa Tombola? It's just there for him to stand on.

Right Lines: Any body can provide a force that supports.

A floor in terms of atoms

Thinking about the learning

A floor seems to just be. How such a passive object can provide an upward force is indeed a puzzle.

A helpful way to think about this force is to imagine the atoms in the body. At a microscopic level the body is being distorted. The upward force is provided by the spring-like bonds between atoms.

Here are some children's ideas on contact forces:

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