Science Chapter 19

Question 1

Astronomy

Answer 1

The study of the moon, stars, and other objects in space.

Question 2

Equinox

Answer 2

The two days of the year on which
neither hemisphere is tilted toward of away from the sun.

Question 3

Revolution

Answer 3

The movement of an object around another object

Question 4

Axis

Answer 4

An imaginary line that passes through Earth’s center North and South poles, about which Earth rotates.

Question 5

Orbit

Answer 5

The path of an object as it revolves around another object in space.

Question 6

Rotation

Answer 6

The spinning motion of a planet on its axis.

Question 7

Solstice

Answer 7

The two days of the year on which the sun reaches its greatest distance north of south of the equator.

Question 8

Force

Answer 8

A push of pull exerted on an object

Question 9

Gravity

Answer 9

A force that moves rocks and other materials downhill; the force that pulls objects toward eachother

Question 10

What determines the strength of the force of gravity between two objects?

Answer 10

The masses, and distance

Question 11

The force of gravity on an object

Answer 11

Weight

Question 12

On the moon, you would weigh:

Answer 12

One sixth

Question 13

What keeps the moon orbiting around the earth, and the earth sun?

Answer 13

Gravity and inertia.

Question 14

Universal Gravitation

Answer 14

Every object attracts every other object.

Question 15

Mass

Answer 15

The amount of matter in an object

Question 16

Inertia

Answer 16

The tendency of an object to resist a change in motion

Question 17

Newtons First LAW

Answer 17

Object in motion, stays in motion unless acted on by a force.

Question 18

hoi

Answer 18

Aloha : )

Question 19

Earth rotates on its

Answer 19

Axis

Question 20

The spinning of Earth on its axis
causes:

Answer 20

Day and Night

Question 21

How long does it take Earth to make on revolution around the sun?

Answer 21

365 and one 4th

Question 22

Earths axis is tillted at an angle of

Answer 22

23.5

Question 23

It takes ________ hours for Earth to rotate

Answer 23

24

Question 24

Equinox=

Answer 24

equal night

Question 25

The position of the moon, Earth and sun causes the phases of

Answer 25

The moon eclipses, and tides

Question 26

A lunar eclipse occurs when earth is between moon and sun

Answer 26

What i just said

Question 27

The darkest part of moons shadow: ( total eclipse north tonowandians)

Answer 27

Umbra

Question 28

Twice a month the earth, moon, and sun are in a straight line combined bla bla bla... form

Answer 28

Spring tide

Question 29

tides occur:

Answer 29

12.5 hrs.

Question 30

Space race was between

Answer 30

US and Soviet union 1957 -

Question 31

A rocket needs ____ to propell forward

Answer 31

Thrust

Question 32

Velocity

Answer 32

Speed in a given direction

Question 33

Orbital velocity

Answer 33

V a rocket needs to orbit

Question 34

Escape V

Answer 34

What a rocket needs to go into space

Question 35

Maria

Answer 35

Dark flat areas which galileo called maria

Question 36

Moon has:

Answer 36

Maria, crater, and highlands.

Question 37

Why is an extra day added to Feb. every four years?

Question 38

What two factor combine to keep planets in orbit?

Answer 38

Inertia and Gravity

Question 39

Identify four objects that travel into space

Answer 39

Space shuttle, rover, Space probe, Space station.

Question 40

Some probes have small robots that can move on planet surface called

Answer 40

Rovers

Question 41

The american effort to land a person on the moon was

Answer 41

The Apollo Program

Question 42

A rocket can only carry so much fuel. The main Advantage of a multistage rocket is that the

Answer 42

Total weight of the rocket is greatly reduced as it rises