2024 Quarter 2 Study Guide CompSci3

Front

What is the relationship between a star's size, brightness, and temperature?

Back

A larger star can be brighter than a smaller star, but it is not necessarily hotter.

Front

What are the phases of the Moon from full moon to new moon?

Back

The phases include Full Moon, Waxing Gibbous, First Quarter, Waning Crescent, and New Moon.

Front

What are Neap tides and when do they occur?

Back

Neap tides occur when the gravitational forces of the Moon and Sun are perpendicular, typically during the first and third quarters of the Moon.

Front

What does the heliocentric model explain about the movement of stars in the night sky?

Back

The heliocentric model explains that the rotation of Earth makes objects in the sky, including stars, appear to move.

Front

How does the distance from the Sun affect the length of a year on different planets?

Back

A year on a planet is longer if it is farther from the Sun, as it takes more time to complete its orbit.

Front

What is an astronomical unit (AU)?

Back

An astronomical unit (AU) is the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.

Front

What is the difference between a full moon and a new moon?

Back

A full moon occurs when the Moon is fully illuminated by the Sun, while a new moon occurs when the Moon is between the Earth and the Sun and is not visible.

Front

What causes tides on Earth?

Back

Tides are caused by the gravitational pull of the Moon and the Sun on Earth's oceans.

Front

What is the significance of the first and last quarter phases of the Moon?

Back

During the first quarter, half of the Moon is illuminated, and during the last quarter, the opposite half is illuminated.

Front

How does the size of a planet affect its orbit around the Sun?

Back

The size of a planet does not directly affect its orbit; rather, its distance from the Sun and gravitational forces determine its orbital period.