Tides
What causes the tides?
Mostly moon
Only cause of fundamental forces that we know of is __________.
God
Force of gravity is called what?
Weight
Objects rotate around what?
Their center of mass
What tides form when the sun, moon, and earth are in the same line with each other?
Spring Tides
What forces hold molecules together?
Electromagnetic
What are the two different units/unit combinations that show force?
kgm/s2 or N
What are the highest tides?
Spring tides
Where is Earth's gravitational force field stronger? Closer or further
Closer
What is the equation for the Universal Law of Gravity?
(G(m1 x m2))/d^2
What do tides do?
Provides waterbeds and nurseries, washes and detoxes shorelines
Are gravitational forces shielded?
no
If your mass is 40 kg, what is your weight in Newtons and pounds?
392 N or 89 lbs
If the gravitational forces of the sun and moon were to be increased, the result would be ________.
Flooding the coastlands
How were Neptune and Pluto discovered?
By their perturbations of the orbit of Uranus
What is the force of gravity between two objects whose masses are 5 x 10^20kg and 2x10^15kg?
6.67 x 10^5 N