Earth

Question 1

Describe what is happening when there is direct sunlight over the Topic of Capricorn

Answer 1

When the sun is overhead at 23.5 degrees South Latitude - The Tropic of Capricorn will receive the most direct and intense sun rays.

The Tropic of Cancer at 23.5 degrees North will receive oblique rays.

Question 2

Describe what is happening when there is direct sunlight over the Topic of Cancer

Answer 2

When the sun is overhead at 23.5 degrees North Latitude - The Tropic of Cancer will receive the most direct and intense sun rays.

The Tropic of Capricorn at 23.5 degrees South will receive oblique rays.

Question 3

What is the Earth’s Axis?

Answer 3

The axis is an imaginary line that is tilted at 23,5 degrees which starts at the North Pole and runs to the South Pole. The Earth turns on its axis to give us day and night.

Question 4

Explain how we experience day and night?

Answer 4

The Earth takes 24 hours to rotate around its axis. Different parts of the earth face the Sun at different times of the day.

Question 5

Describe the Earth’s orbit around the sun.

Answer 5

The Earth revolves around the Sun which is called an orbit. It takes one year to complete this orbit. Different parts of the Earth will receive intense solar energy, depending where the Earth is in its orbit, giving us seasons.

Question 6

Explain the following term with reference to the intensity of the sun’s solar energy:

Summer in the Southern Hemisphere and winter in the Norther Hemisphere.

Answer 6

Direct rays hitting the Southern Hemisphere, making it summer in the southern hemisphere

Oblique rays hitting the northern hemisphere making it winter in the northern hemisphere

Question 7

Explain the following term with reference to the intensity of the sun’s solar energy:

Winter in the Southern Hemisphere and Summer in the Norther Hemisphere.

Answer 7

Direct rays hitting the Northern Hemisphere, making it summer in the Northern hemisphere

Oblique rays hitting the Southern hemisphere making it winter in the Southern hemisphere

Question 8

Explain why the days are longer in the summer

Answer 8

Days are longer in the summer because the North and South Pole (depending on which hemisphere you are in) is tilted towards the sun. The sun rays are intense and direct, due to the positioning of the earth in the sun’s orbit. The sun’s rays shine for longer, giving us a longer day in summer.

Question 9

How long does it take the moon to revolve around Earth?

Answer 9

28 days.

Question 10

How long does it take the Earth to revolve around the Sun?

Answer 10

365 days

Question 11

What is gravity?

Answer 11

Gravity is the tendency of objects to attract or pull each other.

Question 12

What two factors affect gravity?

Answer 12

1. the mass of the object
2. the distance between the two objects

Question 13

Explain the effect of mass on gravity:

Answer 13

An object or body with a great mass will exert a stronger gravitational pull than objects with smaller masses.

Question 14

Explain the effect of distance on gravity:

Answer 14

If objects were to have the same mass, the closer they are to each other, the stronger the pull of gravity is between them.