Earth's Motion & the Seasons

What are seasons?

• Periods of the year with different weather conditions and daylight

• Special events during the year

• Types of weather

• Cycles in nature

The Earth's tilt changes the amount of energy the surface receives. Which of the following best describes how this occurs?

• It causes seasons by changing the angle of sunlight, leading to more direct energy in summer and less in winter.

• It alters the Earth’s speed in orbit around the Sun, modifying the energy intake.

• It changes the distance between the Earth and the Sun, affecting the energy received.

• It has no significant effect on the energy received at the surface.

The seasons change as Earth moves around the Sun because...

• Earth's axis is tilted relative to its orbit

• Earth is closer to the Sun in summer

• The Sun rotates around the Earth

• Earth follows a perfectly circular orbit

What is the imaginary line that divides Earth into Northern and Southern hemispheres called?

• The Equator

• The Prime Meridian

• The Arctic Circle

• International Date Line

The seasons are opposite in the Northern and Southern Hemispheres because...

• The Earth's axis is tilted relative to its orbit around the sun.

• The Earth is at varying distances from the sun in each hemisphere.

• The sun's energy is distributed unequally between the hemispheres.

• The Earth's shape causes different reflections of sunlight.

What causes the seasons?

• The seasons are caused by Earth's varying distance from the Sun.

• The seasons are due to the Earth's tilt, which changes the angle of sunlight and thus the intensity of received solar energy.

• The seasons are caused by changes in Earth's orbital speed.

• The seasons occur because of the heating effect of the Moon's gravitational pull.

During which season in the Northern Hemisphere is the Earth's distance from the Sun the shortest?

• winter

• spring

• summer

• autumn

During which season in the Northern Hemisphere is the Earth's distance from the Sun the longest?

• summer

• winter

• spring

• autumn

How does the number of daylight hours change as the Earth revolves around the Sun?

• It remains constant throughout the year.

• It changes gradually over the year.

• It changes only during solstices and equinoxes.

• It changes randomly over the year.

What is the most accurate description of a solstice?

• An astronomical event where the moon maintains a steady position relative to the stars

• A natural phenomenon marking the beginning of a season

• An astronomical event where the sun reaches its highest or lowest point relative to the celestial equator

• A rare meteor shower observed at night