Science Quiz 1: Earth's Motion

Front 1

_____ is a word that means firmly established; not changing, moving, or fluctuating.

Back 1

Stable

Front 2

______ means supplied or brightened with light.

Back 2

Illuminated

Front 3

Earth can be called a "spaceship" because it is like a vehicle carrying humans and other cargo through space.

Back 3

True

Front 4

Earth's only motions are to rotate about its axis and to orbit around the sun.

Back 4

False

Front 5

Earth appears very fixed and stable, but it is not.

Back 5

True

Front 6

The regular motions of the earth help support and sustain life.

Back 6

True

Front 7

Viewed from space, earth appears as a large sphere.

Back 7

True

Front 8

The earth is perfectly round.

Back 8

False

Front 9

At the poles, earth is about 790 miles in diameter.

Back 9

False

Front 10

The atmosphere of the earth extends to about 1,000 miles beyond the surface.

Back 10

True

Front 11

The earth _____ on its axis.

Back 11

Rotates

Front 12

The solar day is the time that the earth takes to make one complete revolution around the sun.

Back 12

False

Front 13

The earth appears to rise in the east and set in the west.

Back 13

True

Front 14

A day and night are always of equal time at the equator.

Back 14

True

Front 15

How long does it take the earth to make one complete rotation?

Back 15

24 hours

Front 16

The length of days and nights change with the seasons.

Back 16

True

Front 17

The tilt of the earths axis is ____

Back 17

23 1/2

Front 18

______ is an imaginary line running in a circle around the earth through the poles.

Back 18

A Meridian

Front 19

______ is the distance in degrees measured east or west of the prime meridian; expressed either in degrees or in time.

Back 19

Longitude

Front 20

The ancient Jews began their day at ________

Back 20

Sunset

Front 21

Today, most places have adopted the practice of beginning the new day at ______.

Back 21

Midnight

Front 22

In the military services, 6:00 would be written as 1800.

Back 22

True

Front 23

A circle surrounding the earth at the equator would consist of ________ "degrees" of angular measurement.

Back 23

360

Front 24

The division of the earth's surface into twenty-four time zones is called _____________.

Back 24

Standard time

Front 25

The zero degrees meridian is known as the _______.

Back 25

Prime Meridian

Front 26

The calendar day starts at the_________.

Back 26

International Date Line

Front 27

In the continental United States, There are ____ time zones.

Back 27

4

Front 28

The calendar day changes when a new day begins at _____.

Back 28

180 degrees

Front 29

On or about September 22, when the days and nights are equal.

Back 29

Autumnal equinox

Front 30

An egg-shaped orbit of heavenly body.

Back 30

Ellipse

Front 31

One billions of heavenly systems consisting of numerous stars; an example is the Milky Way.

Back 31

Galaxy

Front 32

The curved pathway of a heavenly body through space.

Back 32

Orbit

Front 33

The spring equinox, on about March 21, when days and nights are of equal length.

Back 33

Vernal equinox

Front 34

Everything in space moves except the sun.

Back 34

False

Front 35

When it is sunny at the North Pole, it is dark at the South Pole.

Back 35

True

Front 36

One daylight period at the South Pole lasts twenty-four hours.

Back 36

False

Front 37

The shape of the earth's orbit is a(n) ______.

Back 37

Ellipse

Front 38

The orbits of all planets, including the earth, are ellipses.

Back 38

True

Front 39

Earths orbit may be explained by Newton's Law of Gravitation and Newton's Law of ______.

Back 39

Inertia

Front 40

Newton's Law of inertia is sufficient to cause a planet to orbit the sun.

Back 40

False

Front 41

In order for any satellite or spaceship to orbit the sun, it must be given an initial_______.

Back 41

Velocity

Front 42

What would happen to a planet if it stopped its orbit around the sun?

Back 42

It would crash into the sun.

Front 43

Current modern scientific theories can adequately explain the origin of the planets and their orbits.

Back 43

False

Front 44

By how much does the earth-Sun distance change?

Back 44

3,000,000 miles

Front 45

The word equinox means _______.

Back 45

Equal nights

Front 46

After the autumnal equinox, the days become shorter in the northern hemisphere.

Back 46

True

Front 47

On both equinoxes, the days and nights are equal all over the earth.

Back 47

True

Front 48

The days and nights are always of equal time throughout the year at the equator.

Back 48

True

Front 49

The longest day of the year in the southern hemisphere is ______.

Back 49

December 21

Front 50

Evidence which indicates that the Earth rotates is the _______.

Back 50

Seasonal weather changes