Motion:Motion:

Falling BodiesFalling Bodies

AristotleAristotle

EarthEarth WaterWater AirAir FireFire

AristotleAristotle• the speed at which

something falls is proportional to its weight

• and inversely proportional to the density of the medium through which it falls

• the speed at which something falls is proportional to its weight

• and inversely proportional to the density of the medium through which it falls

GalileoGalileo

fall faster?or slower?fall faster?or slower?

in a vacuum, all objects fall

at the same rate

in a vacuum, all objects fall

at the same rate

water clock

Distancetravelled

Distance fallen is proportional to the square

of the time

Distance fallen is proportional to the square

of the time

1

4

9

16

25

Isaac NewtonIsaac Newton

• References: