Earths Motion

Question 1

What is the nearest star to the earth?

Answer 1

The Sun

Question 2

How many times greater is the diameter of the sun to the Earths diameter?

Answer 2

100 times greater

Question 3

How hot does the Suns core reach?

Answer 3

Over 15,000,000*C

Question 4

How hot does the Suns surface reach?

Answer 4

5,500*C

Question 5

A small part of this energy reaches Earth as…..

Answer 5

Light and thermal energy

Question 6

Earth_______ , or ________ a_______ around the sun

Answer 6

Orbits or follows a path

Question 7

How many days does it take the Earth to make one full revolution around the sun?

Answer 7

365.24 days

Question 8

What causes it to revolve around?

Answer 8

Due to the Suns gravitational pull

Question 9

As Earth revolves around the sun it_____ or spins on its ________ _____

Answer 9

Rotates

Question 10

What is an rotational axis?

Answer 10

An imaginary line on which the Earth rotates

Question 11

Why do different parts of Earths surface receive different amounts of the Sun’s energy?

Answer 11

Because Earth’s surface is curved

Question 12

What is Earths orbit?

Answer 12

An Ellipse or an elongated, closed curve.

Question 13

Why does the distance between the Earth change during the year?

Answer 13

Because the sun is not centered in the ellipse

Question 14

What causes the cycle of seasons on Earth?

Answer 14

The tilt of Earth’s rotation axis, combined with Earth’s motion around the sun causes the seasons to change

Question 15

Does the hemisphere tilted toward the sun or away from the sun receive more daylight?

Answer 15

Towards the sun

Question 16

What causes the the Suns radiation to strike the hemisphere at different angles?

Answer 16

Earth’s tilt

Question 17

What is a solstice?

Answer 17

A day when Earth’s rotation axis is the most toward or away from the Sun

Question 18

When and where is June’s(Summer) solstice?

Answer 18

On June 20/21 in the northern hemisphere

Question 19

When and where is December’s(Winter’s) solstice?

Answer 19

On December 21/22 in the northern hemisphere

Question 20

What is an Equinox?

Answer 20

A day when Earth’s rotation axis is leaning along Earth’s orbit, neither toward nor away from the Sun

Question 21

When and where is March’s (Spring’s) Equinox?

Answer 21

March 20/21 in the northern hemisphere

Question 22

When an where is September’s (Fall’s) Equinox?

Answer 22

September 22/23 in the northern hemisphere

Question 23

What is an ellipse?

Answer 23

An elongated closed curve