Earth, Moon, and Celestial Cycles

Front

What is the force of attraction between two objects called?

Back

Gravity is the force that attracts two bodies towards each other.

Front

Which time unit equals 24 hours?

Back

A day is the time it takes for the Earth to complete one full rotation on its axis.

Front

What is the movement of an object around a fixed point called?

Back

Rotation is the circular movement of an object around a center or axis.

Front

What happens to the length of shadows between noon and sunset?

Back

Shadows get longer as the sun moves lower in the sky.

Front

Which time unit equals 12 months or 365 days?

Back

A year is the time it takes for the Earth to complete one full revolution around the Sun.

Front

What is the path that the Earth takes around the Sun called?

Back

The Earth's path around the Sun is called an orbit.

Front

What is the term for the change in position of the Moon around the Earth?

Back

The Moon revolves around the Earth in a cycle that takes about 27.3 days.

Front

What are the two main types of tides?

Back

The two main types of tides are high tide and low tide.

Front

What causes the phases of the Moon?

Back

The phases of the Moon are caused by the changing positions of the Moon, Earth, and Sun.

Front

What is the term for the time it takes for the Earth to rotate once on its axis?

Back

A rotation takes approximately 24 hours.