forces part 1 p2 Flashcards
1
Q
what’s a scalar quantity?
A
physical thing that can be measured
2
Q
what’s a vector quantity?
A
an object that has magnitude and direction
3
Q
what’s contact forces?
A
objects that are physically touching
4
Q
examples of contact forces:
A
friction
air resistance
tension
normal touching
5
Q
what’s a non contact force?
A
objects that are physically separated
6
Q
examples of a non contact force:
A
gravitational force
electrostatic force
normal context force
7
Q
is force vector or scalar?
A
vector
8
Q
what a resultant force?
A
multiple forces on an objects which is equal to one force
9
Q
what does work done mean?
A
energy transferred
