Unit 1 Earth Sun Moon

Question 1

Matter

Answer 1

Material(stuff)is an object made of atoms and molecules

Question 2

Mass

Answer 2

The measurement of something’s matter

Question 3

Gravity

Answer 3

Force of attraction between objects

Question 4

Weight

Answer 4

Measurement of gravity pulling on mass

Question 5

Vector

Answer 5

Arrow that represents magnitude (strength) and direction of force

Question 6

Celestial Object

Answer 6

Objects in outer space (ex: stars, planets, moons etc.)

Question 7

Revolution

Answer 7

The move to of a celestial object in a elliptical path around another

Travel

Question 8

Orbit

Answer 8

The curved path of a celestial object around stars, planets, moons etc.

Question 9

What 2 factors determine the strength of gravity?

Answer 9

The 2 factors that determine the strength of gravity are mass and distance

Question 10

Rotation

Answer 10

The action of spinning around an axis

Spin

Question 11

Gravitational force

Answer 11

A force of attraction between objects in space dependent on mass and distance

Question 12

Eclipse

Answer 12

To cover

Question 13

Lunar eclipse

Answer 13

When the earths shadow covers the moon

Moon covered

Question 14

Solar eclipse

Answer 14

When the sun is hidden by the moon

Sun covered

Question 15

Umbra

Answer 15

The fully shaded inner region (area) of a shadow; especially the area on earth or moon experiencing a total eclipse

Question 16

Penumbra

Answer 16

A shadow made by the sun or moon when there is a partial eclipse; it is outside of the umbra

Question 17

Direct

Answer 17

Head on

Question 18

Indirect

Answer 18

Bounce off

Question 19

Axis

Answer 19

A pole going through the center of the earth

Question 20

Equator

Answer 20

A line separating the earths northern and Southern Hemispheres

Question 21

Tilted

Answer 21

Slanted; leaning