GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Gravity is the force that controls which of the following?
A
Pulls all matter together
B
Holds electrons in orbit around the nucleus
C
Turns protons into neutrons during radioactive decay
D
Holds protons and neutrons together in the nucleus
Explanation: 

Detailed explanation-1: -The answer is gravity: an invisible force that pulls objects toward each other. Earth’s gravity is what keeps you on the ground and what makes things fall. Anything that has mass also has gravity. Objects with more mass have more gravity.

Detailed explanation-2: -First, gravity is the force that pulls us to the surface of the Earth, keeps the planets in orbit around the Sun and causes the formation of planets, stars and galaxies.

Detailed explanation-3: -When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion. Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls.

There is 1 question to complete.