forces - scaler/vector quantities and contact/non contact forces Flashcards
examples of scalar forces
mass, temperature, speed, energy and time
what are the characteristics of a scalar quantity
they only have a magnitude (size)
examples of vector quantities
displacement, weight, force, velocity, acceleration and momentum
what are the characteristics of a vector quantity
they have both a magnitude and a direction
how do you represent a vector
using an arrow
what does the length of the arrow represent
the magnitude of a vector
what is a force
a push or pull that acts on an object due to the interaction with another object
what do all forced have
magnitude and a direction
what is force measured in
newtons (N)
what is a contact force
a force created when two objects are physically touching
what is an example of a contact force
friction
tension when pulling a rope
air resistance
what is a non-contact force
when the two objects are physically separated
what is an example of a non-contact force
- gravity
- electrostatic force
- magnetic force
