formulas from chapter 3 Flashcards
1
Q
displacement
A
displacement(delta x) = final position - initial position
2
Q
means “change in”
A
delta
3
Q
pythagorean theorem
A
axa + bxb = cxc
4
Q
speed
A
speed= distance/ time
(The / means over or divided by )
5
Q
velocity
A
v= displacement / time
6
Q
acceleration
A
a= final velocity - initial velocity divided by time
7
Q
what is the unit of force
A
newton
8
Q
what is weight measured in
A
force
9
Q
force/ second law of motion
A
F = ma
or force = mass x acceleration
10
Q
newton
A
kgm/s(second) squared
11
Q
kgm squared over second squared
A
joule
12
Q
g ( force of gravity on an object)
A
g= 9.81 m/s squared
13
Q
weight
A
Force of weight = mass x g (9.81 m/s squared )
14
Q
law of universal gravitation
A
Force = G x mass of object 1 x mass of object 2 over distance squared
15
Q
distance
A
d= 1/2 (acceleration of gravity) (time) squared
d= 1/2 gt squared
