Rotation, Revolution and basic Moon Phases

Front

What is the Earth's axis?

Back

The Earth's axis is an imaginary line that goes from the North Pole to the South Pole, around which the Earth rotates.

Front

Why do people weigh less on the Moon than on Earth?

Back

People weigh less on the Moon because the Moon has less mass and therefore less gravity compared to Earth.

Front

What causes day and night on Earth?

Back

Day and night are caused by the rotation of the Earth on its axis.

Front

What is rotation?

Back

Rotation is the spinning of an object around its own axis.

Front

What is revolution?

Back

Revolution is the movement of one object around another object, such as the Earth revolving around the Sun.

Front

What phase of the moon is when it is completely illuminated?

Back

The full moon is the phase when the moon is completely illuminated.

Front

What is a new moon?

Back

A new moon is the phase of the moon when it is not visible from Earth because it is between the Earth and the Sun.

Front

What is the last quarter moon?

Back

The last quarter moon is the phase when half of the moon is illuminated and it is decreasing in illumination.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of an object on its axis, while revolution is the movement of an object around another object.

Front

How long does it take for the Earth to complete one rotation?

Back

It takes approximately 24 hours for the Earth to complete one rotation.