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 the force of gravity?

Back

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

Front

What is the gravitational constant (G)?

Back

The gravitational constant (G) is a fundamental physical constant used in the calculation of gravitational forces between two bodies, approximately equal to 6.674 × 10^-11 N(m/kg)^2.

Front

Who formulated the law of universal gravitation?

Back

Sir Isaac Newton formulated the law of universal gravitation.

Front

What does the law of universal gravitation state?

Back

The law of universal gravitation states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Front

Which planet has the least gravity?

Back

Mars has the least gravity among the options provided (Mars, Mercury, Earth, Venus).

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).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms, while weight is the force of gravity acting on that mass, measured in Newtons.

Front

What is the relationship between gravity and distance?

Back

The force of gravity decreases as the distance between two objects increases, following an inverse square law.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².