Gravity

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, giving weight to physical objects and causing them to fall towards the Earth.

Front

Is gravity the weakest fundamental force?

Back

Yes, gravity is considered the weakest of the four fundamental forces of nature.

Front

What are the four fundamental forces of nature?

Back

The four fundamental forces are gravity, electromagnetism, the weak nuclear force, and the strong nuclear force.

Front

How does gravity affect objects on Earth?

Back

Gravity pulls objects towards the center of the Earth, giving them weight and causing them to fall when dropped.

Front

Why is gravity important for life on Earth?

Back

Gravity helps maintain the atmosphere, keeps water in place, and allows for the existence of stable environments necessary for life.

Front

Can gravity be overcome?

Back

Yes, gravity can be overcome by exerting a greater force, such as when a bird flaps its wings to fly.

Front

What role does gravity play in the motion of planets?

Back

Gravity is the force that keeps planets in orbit around the sun and governs their motion in space.

Front

What is the relationship between mass and gravity?

Back

The strength of gravity between two objects is directly proportional to their masses; greater mass results in a stronger gravitational pull.

Front

How does gravity affect time?

Back

According to general relativity, time runs slower in stronger gravitational fields, a phenomenon known as gravitational time dilation.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity.