Law of Universal Gravitation

Front

What causes ocean tides?

Back

Ocean tides occur mainly because of different gravitational pulls of the moon on opposite sides of Earth.

Front

What is the relationship between the force of gravity and distance?

Back

The force of gravity is inversely proportional to the distance between two objects.

Front

What happens when a feather and a hammer are dropped at the same time on the moon?

Back

Both will hit the ground at the same time.

Front

What did Brahe's observations suggest about planetary motion?

Back

Brahe's observations suggested that planets travel in a slightly elliptical shape.

Front

How does the speed of planets change with distance from the sun?

Back

When farther away from the sun, planets travel slower.

Front

What is the Law of Universal Gravitation?

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 their centers.

Front

What is gravitational pull?

Back

Gravitational pull is the force exerted by a mass that attracts other masses towards it.

Front

How does mass affect gravitational force?

Back

The gravitational force increases with the mass of the objects involved.

Front

What is the effect of gravity on objects in free fall?

Back

In free fall, all objects accelerate towards the Earth at the same rate, regardless of their mass.

Front

What is an example of a celestial body that has a significant gravitational pull?

Back

The Earth is an example of a celestial body with significant gravitational pull.