Gravity

What are the 4 basic forces in nature?

• Gravity force, magnetic force, decreasing force, increasing force

• gravitational force, electromagnetic force, weak force, strong nuclear force

• Pulling force, pushing force, decreasing force, increasing force

• 1st force, 2nd force, 3rd force, 4th force

Select the false statement

• Gravity is weak

• Gravity is the strongest force

• Gravity holds the universe together

• There is gravity in space

WHO CAME UP WITH THE LAW OF UNIVERSAL GRAVITATION?

• Albert Einstien

• Galileo Galilei

• Sir Isac newton

• It has not yet been discovered

Gravity depends on which 2 things

• Masses of the objects involved

• Their weight

• The distance between them

• Their volume

We feel the pull of Earth but not the pull of a rock.

• True

• False

What did newton realize when the apple fell on him

• The apples with more volume fell quicker

• As the apple was falling from the tree it was gaining speed

• Heavier objects fall at the same rate, Which means that gravity must depend on the mass of the object

• Gravity would have to “pull harder” on the heavier object to get it moving

Gravity pushes objects away from each other

• True

• False

Depending on how far apart 2 objects are...

• They will always have a gravitational force

• After 30k miles gravity disappears

• After 40k miles gravity disappears

• After 50k miles gravity disappears

The force depends on the product of the masses of two objects divided by the square of the (r)

• True

• False

Does gravity change depending on where you are in the universe?

• Yes

• No