Unit 2 - Earth's Dimensions

Question 1

Gravitational attraction is _____ when the masses are larger.

Answer 1

greater

Question 2

Gravitational attraction is greater when the objects are _____.

Answer 2

closer

Question 3

Because Earth bulges slightly at the Equator and is slightly flattened at the Poles, it is called an …

Answer 3

oblate spheroid

Question 4

A person would weigh _____ at the Poles.

Answer 4

slightly more (because he/she is closer to the center of the Earth)

Question 5

The best model of Earth’s shape is …

Answer 5

a perfect sphere that is smooth like a ping pong ball.

Question 6

_____ is based upon our observation of the Sun and stars.

Answer 6

Latitude

Question 7

_____ is based upon Earth’s rotation of 15 degrees/hour and the Sun’s apparent motion.

Answer 7

Longitude

Question 8

The _____ is at 0 degrees latitude.

Answer 8

Equator

Question 9

The _____ is at 0 degrees longitude.

Answer 9

Prime Meridian

Question 10

The _____ are at 90 degrees latitude

Answer 10

Poles

Question 11

When describing latitude or longitude you must give the…

Answer 11

number and direction. For example: 42 degrees North.

Question 12

Use the New York State maps in…

Answer 12

the ESRT. Be sure to draw the latitude and longitude lines.

Question 13

One degree is divided into …

Answer 13

60 minutes

Question 14

_____ is the North Star.

Answer 14

Polaris

Question 15

Polaris is located above …

Answer 15

the Earth’s axis of rotation (AKA: North Pole)

Question 16

The angle of Polaris (how high you have to look up in the northern sky) is equal to _____ in the Northern Hemisphere.

Answer 16

your latitude

Question 17

When describing the altitude of Polaris do not give a direction. Only give the …

Answer 17

measurement of the angle in degrees.

Question 18

As a person’s latitude increases, the altitude of Polaris…

Answer 18

increases

Question 19

Earth rotates at a rate of _____ degrees per hour.

Answer 19

15

Question 20

Locations on the same longitude line have the same…

Answer 20

local time

Question 21

Greenwich England is at…

Answer 21

0 degrees longitude (AKA: Prime Meridian)

Question 22

The International Date Line is at…

Answer 22

180 degrees longitude

Question 23

If you travel west, time…

Answer 23

becomes less

Question 24

if you travel east, time…

Answer 24

will increase.

Question 25

_____ provides a basis for our system of local time.

Answer 25

Rotation

Question 26

Lines of _____ are the basis for time zones.

Answer 26

longitude

Question 27

To people on Earth, _____ makes it seem as though the Sun, Moon, and stars are moving around Earth once a day.

Answer 27

the rotation of Earth