Front

What does the term 'perpendicular' mean in geometry?

Back

Perpendicular refers to two lines or surfaces that meet at a right angle (90 degrees).

Front

What causes the seasons on Earth?

Back

The tilt of the Earth's axis and its revolution around the Sun cause the seasons.

Front

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

Back

The Earth takes approximately 24 hours to complete one rotation.

Front

How long does it take for the Earth to complete one revolution around the Sun?

Back

The Earth takes approximately 365 days to complete one revolution around the Sun.

Front

What is the difference between rotation and revolution?

Back

Rotation refers to the spinning of the Earth on its axis, while revolution refers to the Earth's orbit around the Sun.

Front

What is the significance of Earth's tilt?

Back

Earth's tilt affects the angle of sunlight received, leading to variations in temperature and seasons.

Front

What does 'illuminated' mean in the context of the Moon?

Back

Illuminated means that light from a source, such as the Sun, shines on the Moon, making it visible from Earth.

Front

Why does the Moon appear to change shape?

Back

The Moon appears to change shape due to the changing angle of sunlight as viewed from Earth.

Front

What is the relationship between daylight and seasons in the northern and southern hemispheres?

Back

During summer in the northern hemisphere, it experiences longer periods of daylight, while the southern hemisphere experiences winter.

Front

What is the role of the Sun in the Earth's seasons?

Back

The Sun's position relative to the Earth, due to its tilt and orbit, determines the intensity and duration of sunlight, affecting seasons.