Gravity and Tides

Front

What is the definition of Mass?

Back

Mass is how much stuff (atoms and molecules) make up an object.

Front

What is the definition of Weight?

Back

Weight is a measure of gravity pulling on an object's mass.

Front

What is the relationship between weight and gravity?

Back

Weight is the measure of the force of gravity on an object.

Front

Why does the moon affect tides on Earth?

Back

The moon is mainly responsible for the tides on Earth because it is much closer.

Front

What is Gravity?

Back

Gravity is the force of attraction between all things that have mass.

Front

How does mass differ from weight?

Back

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

Front

What is the formula for calculating weight?

Back

Weight = Mass x Gravity.

Front

What is the effect of distance on gravitational force?

Back

The gravitational force decreases as the distance between two objects increases.

Front

What are tides?

Back

Tides are the rise and fall of sea levels caused by the gravitational forces of the moon and the sun.

Front

What is the role of the sun in tides?

Back

The sun also affects tides, but its effect is less than that of the moon due to its greater distance.