Earth's Gravity

What is the gravitational pull of the earth means?

• The force that allows an airplane in space.

• The force that pull an objects towards the center of earth.

• The force that allows an object to float on the earth.

Why the existence of the gravitational pull of earth is importance? Select two answers.

• All objects will sink into water

• All objects will fall to the ground toward the earth.

• All objects will remain in their position.

• All objects will float in the air

Who discovered gravity of earth?

• Sir Alexander Graham Bell

• Sir Isa Newton

• Sir Isaac Newton

• Sir Abraham Lincoln

How many gravity effects can we experience?

• 1

• 2

• 3

• 4

What will happened if the gravity did not exist?

• All objects on earth remain in their positions.

• All objects will fall towards the earth when released.

• All objects not be able to stay and simply float away.

What is the meaning of gravity

• The force that pulls an object toward the center of the earth.

• The force that pulls an object into the earth's atmosphere

• The force that pulls an object towards the center of the moon

• The force that pulls an object out of the center of the earth.

Which of the following statement is true?

• Earth's gravitational attraction changes according to the place on the surface of the earth.

• The attraction acting between two objects is the gravitational force of the earth.

• Not all objects are drawn towards the center of the earth.

• The length of an objects is affected by the gravitational force of the earth.

ALL OBJECTS ON EARTH WILL FALL TO THE GROUND.

Which of the following forces is the related to the above statement?

• Pulling force

• Pushing force

• Frictional force

• The earth's gravity

Diagram 1 shows a boy kicking the ball upwards.

What will happen to the ball after a while ?

• The ball will keep moving upwards.

• The ball will fall down.

• The ball will float in the air.

• The ball will move forward.

Which of the following is the reason why satellites are able to orbit the earth?

• The gravitational pull of the earth.

• The rapid rotation of the satellite.

• The small size of the satellite.

• The earth rotates on its axis.