Tides and gravity

Front

What is a high tide?

Back

A high tide is the bulge of water on the side of the Earth closest to the moon, resulting in a higher water level.

Front

What two factors affect the magnitude of the force of gravity between two objects?

Back

The two factors are mass and distance.

Front

What causes tides on Earth?

Back

Tides are caused by the differences in the moon's and sun's gravitational pull on different sides of the Earth.

Front

What type of tide occurs when the Earth, moon, and sun are aligned?

Back

A spring tide occurs when the Earth, moon, and sun are aligned.

Front

What type of tide occurs when the Earth, moon, and sun form a right angle?

Back

A neap tide occurs when the Earth, moon, and sun form a right angle.

Front

What is the name of the moon phase when the moon is not visible from Earth?

Back

The moon phase is called the New Moon.

Front

How does the distance between two objects affect gravitational force?

Back

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

Front

What is the role of the sun in the formation of tides?

Back

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

Front

What is the difference between spring tides and neap tides?

Back

Spring tides are higher than normal and occur during full and new moons, while neap tides are lower than normal and occur during the first and third quarters of the moon.

Front

What is the gravitational force?

Back

The gravitational force is the attraction between two masses, which depends on their masses and the distance between them.