Quiz 1 Practice

Question 1

astronomy

Answer 1

The study of the objects that lie beyond our planet Earth and the processes by which these objects interact with one another

Question 2

What are examples of concepts studied in astronomy?

Answer 2

Stars
Planets
Moons
Asteroids
Comets
Galaxies
Nebulae
Black Holes

Question 3

Solar System (Astronomy)

Answer 3

Covers the Sun and everything that is gravitationally bound to it.

Question 4

What does Solar System Astronomy cover?

Answer 4

1.) The 8 planets and their moons
2.) The 5 known dwarf planets
3.) Thousands of asteroids
4.) And a multitude of other small, rocky or icy objects such as comets and Kuiper Belt Objects

Question 5

radius

Answer 5

a straight line from the center to the circumference of a circle or sphere; r = C/2π

Question 6

circumference

Answer 6

the enclosing boundary of a curved geometric figure, especially a circle; C = 2πR

Question 7

scientific method

Answer 7

the process of examining, investigating, and validating scientific hypotheses

Question 8

meters

Answer 8

(m) is used for measuring distance.

Question 9

Common Conversions to Remember

Answer 9

1m = 3.28 feet
1 kg = 2.2 lbs
1 mile = 1609.34 meters

Question 10

centi-

Answer 10

(c) 0.01

Question 11

milli-

Answer 11

(m) 0.001

Question 12

kilo-

Answer 12

(k) 1,000

Question 13

Mega-

Answer 13

(M) 1,000,000 or 10^6

Question 14

Giga-

Answer 14

(G) 1,000,000,000

Question 15

million

Answer 15

1,000,000 OR 10^6

Question 16

billion

Answer 16

1,000,000,000 OR 10^9

Question 17

conversion factor

Answer 17

the number or formula you need to convert a measurement in one set of units to the same measurement in another set of units

Question 18

What is astronomy?

Answer 18

The study of the objects that lie beyond our planet Earth and the processes by which these objects interact with one another.

Question 19

What is the scientific method?

Answer 19

Step 0: Ask a question
Step 1: Hypothesis
Step 2: Data
Step 3: Analysis
Step 4: Answer Question

Question 20

How do we know that the Earth is not flat?

Answer 20

We know the Earth is not flat through observations and empirical evidence, including (1) 250BC Eratosthenes compared two shadows 500 miles apart and used trigonometry to determine the circumference and curvature of the Earth; (2) Ships sinking; (3) Photos from Space

Question 21

How can we convert between different units?

Answer 21

Unit conversion; Using multiplication and division and eliminating common units until the desired unit is achieved.