Universal Gravitation

Front

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

Back

Nothing, mass is not affected by gravitational force.

Front

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

Back

Mass and distance.

Front

When an astronaut in orbit is weightless, what is true about their relationship to Earth's gravity?

Back

They are still in the pull of Earth’s gravity.

Front

If two asteroids exert a gravitational force, F, on each other and are now three times as far apart, what is the new gravitational force?

Back

F/9.

Front

The force of gravity is directly proportional to what?

Back

Mass.

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) / r^2, where G is the gravitational constant.

Front

What does 'weight' refer to in physics?

Back

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

Front

How does distance affect gravitational force?

Back

Gravitational force decreases as the distance between two objects increases.

Front

What is the gravitational constant (G)?

Back

G is approximately 6.674 × 10^-11 N(m/kg)^2.