words
what is physical property?
a property that is measurable
if you are 80 pounds here how many pounds would you weigh on the moon?
13 pounds
what is momentum
the characteristics of a moving object
how are the low and high tides caused
The moons gravitational pull
what is acceleration
how something gains speed
who was the first person to discover gravity?
sir Isaac Newton
how did Isaac newton discover gravity?
a apple falling on his head.
what does gravity do?
it holds us down on earth