Gravity

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between their centers.

Front

What is the formula for gravitational force?

Back

The formula for gravitational force (F) is F = G * (m1 * m2) / r^2, where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.

Front

How does distance affect gravitational force?

Back

Gravitational force decreases as the distance between two objects increases; specifically, it is inversely proportional to the square of the distance.

Front

What is an elliptical orbit?

Back

An elliptical orbit is the path of an object in space that moves around another object in an elongated circle, where the distance between the two objects varies.

Front

What is the gravitational influence of a distant star on Earth?

Back

The gravitational influence of a distant star, like Vega, is small compared to that of the Sun due to the vast distance separating them.

Front

What happens to gravitational force if mass is doubled?

Back

If the mass of an object is doubled, the gravitational force acting on it also doubles, assuming the distance remains constant.

Front

Why do astronauts jump higher on the Moon?

Back

Astronauts can jump higher on the Moon because the Moon exerts less gravitational force than Earth, allowing for greater vertical movement.

Front

What is the gravitational constant (G)?

Back

The gravitational constant (G) is a key quantity in Newton's law of universal gravitation, approximately equal to 6.674 × 10^-11 N(m/kg)^2.

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force is directly proportional to the masses of the objects involved; as mass increases, gravitational force increases.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the product of mass and the acceleration due to gravity (W = m * g).