Chapter 1: Forces Flashcards
What can a force be?
A push or a pull
What can forces be measured with?
A newtonmeter in newtons
What are three examples of contact force?
Friction, drag forces and support forces
What do forces always occur in?
Pairs
When there is a balanced force what do we call it?
An equilibrium
What happens when there is friction?
When two objects move against each other
What are two examples of a drag force?
Water resistance and air resistance
What is a support force that balances the weight of an object?
Upthrust
In physics terms what is a field?
A special region where certain objects experience a non-contact force
What is mass?
The amount of ‘stuff’ something is made of
What is Hooke’s Law?
It states that the extension of a spring doubles when you double the force. This means there is a linear relationship between force and extension