scalar, vector, contact forces Flashcards
1
Q
what is scalar
A
has magnitude
2
Q
vector and example
A
has magnitude and direction eg forces
3
Q
contact forces
A
friction
air-resistance
tension
upthrust
4
Q
non contact forces
A
gravitational
electrostatic
magnetic
5
Q
what is gravity
A
force of attraction between all masses
6
Q
what is mass
A
how much matter it contains
7
Q
what is weight
A
force acting on an object due to gravity
8
Q
what does the weight of an object depend on
A
gravitational field strength where the object is and is directly proportional to its mass
9
Q
equation to work out weight
A
mass x gravitational field strength
10
Q
what is resultant force
A
where more than one force acts on an object, these forces can be seen as a single force that has the same effect as all forces acting together
