Contact and Non contact forces

what is a force

A push or pull that acts on an object due to the interaction with another object

what can applying a force to an object cause the object to do

stretch, compress or bend

are forces scalar or vector quantities

vector as they have both a magnitude and direction

what is force measured in

newtons (N)

the strength of a non contact force _____ as the objects get further apart

decreases

what is electrostatic force

The force between charged objects can be attractive or repulsive

what is gravity

the force of attraction between any two objects that have mass

what are contact forces

Forces that act when two objects are physically touching

what is upthrust

the supporting force exerted by a fluid on an object acting upwards

what is air resistance

a resistive force attempting to slow an object due to rubbing pm a surface or against air opposing the motion

what is tension

the pulling force being exterted through a rope

give an example of normal contact force/ reaction force

a rock on a table has mass so it exerts the force of weight downwards, to keep it in place and stop it from falling the table must be exerting an equal and opposite force upwards