Moon Phases, Seasons, Tides, & Gravity Practice Test

Front

What is a moon phase?

Back

A moon phase is the shape of the illuminated portion of the Moon as seen from Earth, which changes in a cycle over approximately 29.5 days.

Front

What does a full moon look like?

Back

A full moon appears as a complete circle, fully illuminated by the Sun.

Front

What is a new moon?

Back

A new moon occurs when the Moon is between the Earth and the Sun, making it invisible from Earth.

Front

What is a quarter moon?

Back

A quarter moon is when half of the Moon is illuminated, appearing as a half circle.

Front

What are tides?

Back

Tides are the rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun.

Front

What is a spring tide?

Back

A spring tide is a higher than normal tide that occurs during a full moon or new moon when the Sun, Moon, and Earth are aligned.

Front

What is a neap tide?

Back

A neap tide is a lower than normal tide that occurs during the first and third quarters of the moon when the Sun and Moon are at right angles to each other.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, such as the Earth and the Moon.

Front

How does gravity affect weight?

Back

Weight is the force of gravity acting on an object's mass; it changes based on the gravitational pull of the body you are on.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and does not change regardless of location, while weight is the force of gravity on that mass.