Kepler's Laws and Universal Gravitation

Planets revolve around the sun in elliptical orbits

• Law of Periods

• Law of orbits

• Law of Areas

Tags

NGSS.HS-ESS1-4

A force of attraction exists between all the objects in the universe.

• Kepler's first law

• Kepler's second law

• Kepler's third law

• Newton's law of gravitation

Tags

NGSS.HS-PS2-4

who proposed Earth centered model?

• Copernicus

• Ptolemy

• Kepler

• Tycho Brahe

In which position is Earth travelling fastest?

• 1

• 5

• 7

• 10

Tags

NGSS.HS-ESS1-4

Picking up a rock requires less effort on the Moon than on

Earth. Why?

• The mass of the rock on the Moon is less.

• The acceleration due to gravity 'g' on the moon is greater than on the Earth.

• The acceleration due to gravity 'g' on the Moon is smaller than on the Earth.

Tags

NGSS.HS-PS2-4

when the mass of the objects increases the gravitational force between them

• decreases

• increases

• no change

Tags

NGSS.HS-PS2-4

When the distance between two objects increases the gravitational force between them

• decreases

• increases

• no change

Tags

NGSS.HS-PS2-4

For a planet revolving around the Sun, the time period of the planet depends on

• Mass of the Sun

• Mass of the planet

• Distance between the planet and the Sun

• Both A and C

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

'G' is called

• acceleration due to gravity

• gravity

• gravitational constant

• gravitational force

Unit of 'G' is

• N-m²/kg

• N-m/kg²

• N-m²/kg2

• N-m/kg

Tags

NGSS.HS-PS2-4