CP2e Newton's Third Law Flashcards
Newton’s Third Law
Is about the forces on two different object when they interact with eachother. This interaction can happen:
- When objects touch, such as when you sit on a chair
- At a distance, such as the gravitational attraction between the Earth and the moon
action-reaction forces (definition)
A pair of forces acting on two interactive objects
Action-reaction forces are always…
the same size and in opposite direction
Action-reaction forces are also the same…
type of force
Equilibrium
When a situation is not changing because all the things affecting it balance out
Action-reaction forces and balanced forces are not the same. In both cases the sizes of the forces are equal and act in different directions, but:
- action-reaction forces act on different objects
- balanced forces all act on the same object
Collisions
The action-reaction forces that occur during a collision are the same but they do not necessarily have the same effects on the two obejects because…
the objects have different masses
