Exam #1 (Chapters 1-8)

Question 1

1 Googol

Answer 1

x 10¹⁰⁰

Question 2

1 Googolplex

Answer 2

10^{1 googol}

Question 3

Logarithmic scale

Answer 3

Counts by multiplying powers of ten.

Question 4

Richter Scale

Answer 4

uses a logarithmic scale; 8 on the Richter scale is 10 times more powerful than a 7.

Question 5

Kilo

Answer 5

x 10³

^(k)

Question 6

Mega

Answer 6

x 10⁶

(M)

Question 7

giga

Answer 7

x 10⁹

(G)

Question 8

tera

Answer 8

x 10¹²

(T)

Question 9

centi-

Answer 9

x 10^-2

(c)

Question 10

milli

Answer 10

x 10^-3

(m)

Question 11

micro

Answer 11

x 10^-6

(micro, or u)

Question 12

nano

Answer 12

x 10^-9

(n)

Question 13

pico-

Answer 13

x 10^-12

Question 14

a^maⁿ =

Answer 14

a^m+n

Question 15

(a^m)ⁿ=

Answer 15

a^mn

Question 16

1 mile in feet

Answer 16

5280 Ft

Question 17

1 inch into centimeters

Answer 17

2.54 Centimeters

Question 18

1 Mile to Kilometers

Answer 18

1.609344 Kilometers

Question 19

1 Astronomical Unit (in miles and Kilometers)

Answer 19

Miles= 9.3x10⁷

Kilometers= 1.5x10⁸

Question 20

Light speed

Answer 20

186,000 miles/second

300,000 kilometers/second

Question 21

How to calculate light years

Answer 21

(Speed of Light) x (amount of years)

Question 22

The sun is a…

Answer 22

Star

Question 23

How close is the closest star? (other than the sun)

Answer 23

4.2 light years away

Question 24

Where does earth’s atmosphere end?

Answer 24

60-100 miles above the earth’s surface

Question 25

How often does the moon orbit the earth?

Answer 25

Once a month

Question 26

How far away is the moon?

Answer 26

250,000 miles away

Question 27

How often does the earth orbit the sun?

Answer 27

Once a year

Question 28

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

Answer 28

24 hours

Question 29

What are nebulae?

Answer 29

Clouds of gas and dust in the space between stars

Question 30

What are galaxies?

Answer 30

Vast island of hundreds of billions of stars.

Question 31

Which galaxy are we in?

Answer 31

The milky way galaxy

Question 32

When did the Big Bang happen?

Answer 32

13.80 +/- 0.04 billion years ago