forces Flashcards
1
Q
difference between vector and scalar quantities
A
scalar has magnitude only but vector has direction and magnitude.
2
Q
what is a force?
A
a push or pull that acts on an object due to the interaction with another object
3
Q
contact and non contact forces, examples of each too
A
contact : objects that are physically touching eg friction, air resistance, tension
non-contact : force between objects that are physically touching eg gravitational force, electrostatic force and magentic force
4
Q
what is weight
A
the force acting on an object due to the gravitational field around earth. measured in newtons.
