1) the earth needs to be traveling at 29,500m/s to successfully travels around the earth.
2) The earth will fly off tangent to the sun if the earth's speed is greater than critical speed
3) The earth will crash into the sun if its speed is less then critical speed
4) The planet closest to the sun will travel faster than the planet furthest away from the sun.
5) Venus's critical speed would be greater than Mars's.
6) A and C are connected and have the same speed.
7) The spaceship would be sucked into the neutron star because of its massive amouts of gravity.
8) Gravity holds the earth together.
Gravitational Force Lab
1) Point A has a greater gravitational effect on the moon because it closer to the moon.
2) Because the distance is shorter between the moon and the Earth.
3) Because the earth has a high tangential speed so it is falling around the sun.
4) r because gravitational attraction is directly related to teh distance between the two objects.
5) a Increase
b Increase
6) a Decrease
b Decrease
7) Point A
Tidal Force Lab
1) The Earth and the sun have the largest gravitational force.
2) The Earth and the moon have the largest tidal force.
3) For tidal effect, two objects located close together is more important than the strength of gravitational force.
