Resultant Forces Flashcards
1
Q
which force increases as an object speed increases
A
air resistance
2
Q
unit for weight
A
newtons
3
Q
size of a resultant force on an object travelling at a constant speed
A
0
4
Q
define resultant force
A
the overall force on an object
5
Q
what is velocity
A
speed in a given direction
6
Q
describe motion of an object moving forward if there is a resultant force acting on it in the other direction
A
it will be slowing down
7
Q
why does a skydiver slow down when they open a parachute
A
the parachute has a large surface area and so the air resistance increases to give a resultant force upwards
8
Q
name the force allowing a cyclist to move forwards
A
friction
