test 1

Question 1

when does an eclipse occur

Answer 1

when one object is in the shadow of another object

Question 2

lunar eclipse

Answer 2

the moon is in earth’s shadow

Question 3

solar eclipse

Answer 3

the moon is making a shadow on earth

Question 4

what creates tides

Answer 4

the gravitational pull of the moon

Question 5

spring tide

Answer 5

sun and moon pull the water in the same direction

creates higher high tides and lower low tides

occurs during new and full moons

Question 6

neap tide

Answer 6

sun and moon pull the water in the opposite direction

creates lower high tides and higher low tides

occurs during 1st and 3rd quarter moons

Question 7

most common theory about the moon formation is

Answer 7

GIANT IMPACT THEORY:
during the big bang the moon was created by the debris of a huge planet knocking into earth

Question 8

order of moon phases

Answer 8

new - waxing crescent - 1st quarter - waxing gibbous - full - waning gibbous - 3rd quarter - waning crescent

Question 9

altitude

Answer 9

degrees above horizon

Question 10

how many degrees is the hand

Answer 10

10

Question 11

magnitude

Answer 11

higher mag = dimmer
lower mag = brighter

Question 12

which way do earth and moon rotate AND revolve

Answer 12

counterclockwise

Question 13

What force holds objects in orbit?

Answer 13

gravitational pull

Question 14

What is the cause of gravity?

Answer 14

mass

Question 15

what is an AU

Answer 15

astronomical unit = relative distance between sun and earth

Question 16

when to use AU

Answer 16

for WITHIN the solar system

Question 17

what is a lightyear?

Answer 17

how fast light travels in a year

Question 18

when to use lightyears

Answer 18

for OUTSIDE the solar system

Question 19

Newton’s 1st Law

Answer 19

an object in motion will stay in motion unless acted upon by an outside force

Question 20

newtons 2nd law

Answer 20

f=ma

Question 21

Newton’s 3rd Law

Answer 21

every force has an equal and opposite reaction force

Question 22

Kepler’s 1st Law

Answer 22

planets move in an elliptical matter with the sun as one focus

Question 23

Kepler’s 2nd Law

Answer 23

equal area in equal time

Question 24

Kepler’s 3rd Law

Answer 24

(period of orbit)^2 is proportional to the (distance from the sun)^3

Question 25

what doesn’t cause the change in seasons

Answer 25

the distance from sun

Question 26

Where are the sun’s rays hitting Earth during the equinoxes?

Answer 26

equinox => equator

Question 27

Where do the sun’s rays strike during the summer solstice?

Answer 27

tropic of cancer (23.5 N)

Question 28

Where do the sun’s rays strike during the winter solstice?

Answer 28

tropic of capricorn (23.5 N)