Fizik F4 KSSM Chapter 3

A person who jumps up will return to the ground. What force causes the person to return to the ground?

• Gravitational force

• Centripetal force

• Gravitational acceleration

• Centripetal Acceleration

Air molecules remain in the atmosphere without escaping to the outer space. What force acts between the molecules in the atmosphere and the Earth?

• Gravitational force

• Net Force

• Gravitational Linear velocity

• Centripetal force

Tick the answer that involves in Newton's Universal Law of Gravitation.

• Mass of first body

• Mass of second body

• distance between the center of both body

• Gravitational constant

• velocity

How do the masses of two bodies influence the gravitational force between them?

• the bigger the mass, the greater the gravitational force

• the smaller the mass, the greater the gravitational force

• the bigger the mass, the weaker the gravitational force

• mass of the bodies do not effect the gravitational force

What is the effect of distance between two bodies on gravitational force between them?

• As the distance increases, the gravitational force decrease

• As the distance increases, the gravitational force increase

• As the distance decrease, the gravitational force decrease

• the distance between two bodies do not effect the gravitational force

why is the magnitude of gravitational force between you and your patner small?

• The masses between two bodies of small mass has a very small magnitude.

• The masses between two bodies of small mass has a very high magnitude.

• The distance between two bodies is very small.

• because they ignore gravitational force.

What are the factors that influence the value of gravitational acceleration?

• Mass of an object

• Distance of the object

• Gravitational constant

• velocity

what is the definition of centripetal force?

• A force acts on the body in a direction towards the center of the circle for a body in circular motion

• A force acts on two bodies in a direction towards the center of the circle for a body in difference motion

• the force that react between two bodies which is directly proportional to masses of two bodies

what is the factors that effect the centripetal forces?

• mass of the object

• linear speed

• radius of circle

• gravitational acceleration

Based on Kepler's Law, name the shape orbits used by the planet in the solar system.

• Circular

• Oval

• Ellipse

• Round