levers and moments questions 28 - 40 Flashcards
1
Q
what is a pivot / fulcrum
A
a point at which a body will rotate around
2
Q
what is a moment
A
a turning force calculated by multiplying the size of a force acting around a pivot by the distance from the pivot
3
Q
in what directions do we consider newtons laws for around a pivot
A
clockwise and anticlockwise
4
Q
name 2 simple machines
A
gears and leavers
5
Q
what is work done
A
a measure of energy transferred by a force acting over a distance. measured in joules
6
Q
what are the units for force
A
newtons
7
Q
what are the units for acceleration
A
meters per second squared
8
Q
what are the units for time
A
seconds
9
Q
what are the units for energy
A
joules
10
Q
what are the units for velocity
A
meters per second
11
Q
what are the units for the spring constant
A
newtons per meter
12
Q
what are the units for moments
A
newton meter
