Physics - Universal Gravitation

Newton’s law of Universal Gravitation

if the distance between two object dubled , the attraction force will..

• increase

• decrease

• not affect

This is a statement of which scientific law?

Object attract other objects with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Law of Universal Gravitation

As an object moves further from the surface of the Earth, what happens to its mass?

• The mass of the object will not vary as it moves further from the surface of the Earth

• The mass of the object will decrease as it moves further from the surface of the Earth.

• The mass of the object will increase as it moves further from the surface of the Earth.

Which of the following is the most accurate description of "escape velocity"?

• Escape velocity is the velocity needed to get away from the Earth's gravitational force.

• Escape velocity is the velocity needed to get away from the Earth's gravitational force and is dependent upon the mass of the satellite.

• Escape velocity is the velocity needed to get away from the Earth's gravitational force and not dependent upon the mass of the satellite.

• Escape velocity is the velocity needed to get away from the Earth's gravitational force and not dependent upon the mass of the satellite but is dependent upon the geometric structure of the launch vehicle.

The force of gravity on a person or object on the surface of a planet is called

• mass.

• weight.

• terminal velocity

• free fall.

The law of universal gravitation states that any two objects in the uni-verse that have mass, without exception,

• attract each other.

• repel each other.

• combine to provide a balanced force.

• create friction

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

If I double the distance between two objects, what happens to their gravitational Force?

• 4x bigger
• 4x smaller
• 2x bigger
• 2x smaller

The law of universal gravitation is credited to whom?

• Einstein
• Galileo
• Darwin
• Newton

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• more
• same
• dosen't matter
• less