Universal Law of Gravitation

Front

What are the two factors affecting the magnitude of the force of gravity between two objects?

Back

Mass and distance.

Front

How do you calculate the weight of an object on Earth?

Back

Weight = mass × gravitational acceleration (W = m × g). For example, a 200 kg elephant has a weight of 200 kg × 10 m/s² = 2000 N.

Front

True or False: Gravity attracts all objects towards one another.

Back

True.

Front

What happens to your mass if Earth's mass is cut in half?

Back

Nothing; mass is not affected by gravitational force.

Front

If two asteroids are three times as far from each other, how does the gravitational force change?

Back

The gravitational force becomes F/9.

Front

What is the universal law of gravitation?

Back

Every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is the formula for gravitational force?

Back

F = G * (m1 * m2) / r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers.

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s², often approximated as 10 m/s² for simplicity.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

How does distance affect gravitational force?

Back

Gravitational force decreases as the distance between two objects increases.