Universal Gravitation and Orbital Motion Review

Front

What is the reason the Moon does not fall to the Earth?

Back

The Moon has sufficient tangential velocity to maintain its orbital motion.

Front

How does your weight change if you travel to the center of the Earth?

Back

Your weight would become zero at the center of the Earth.

Front

What is the relationship between gravitational force and distance according to Newton's law of universal gravitation?

Back

The gravitational force is inversely related to the square of the distance between two objects.

Front

Does your weight change when you climb a ladder?

Back

Yes, your weight changes slightly, but the change is too small to measure.

Front

If two satellites of equal mass are in circular orbit around a planet, how does the gravitational force on them compare if one is twice as far as the other?

Back

The gravitational force on the closer satellite is 4 times stronger than on the farther satellite.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses.

Front

What is the formula for calculating gravitational force?

Back

F = G * (m1 * m2) / r^2, 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 of the two masses.

Front

What is orbital motion?

Back

Orbital motion is the motion of an object in a curved path around a central body due to gravitational attraction.

Front

What is tangential velocity?

Back

Tangential velocity is the speed of an object moving along a circular path, measured at a point tangent to the circle.

Front

What happens to gravitational force as distance increases?

Back

Gravitational force decreases as the distance between two objects increases.