Lesson 1

Question 1

All existing matter and space considered as a whole ; the cosmos

Answer 1

Universe

Question 2

It is a tabular optical instrument for viewing distant objects by means of the refraction of light rays through a lens of the reflection of light rays by the concave mirror

Answer 2

Telescope

Question 3

Who invented the first telescope

Answer 3

Galileo galilei

Question 4

Who invented the first telescope

Answer 4

Galileo galilei

Question 5

Galileo galilei discovered (4)

Answer 5

Craters of the moon
Spots on the sun
jupiter has four moons
Milky way galaxy consists of million of stars

Question 6

Who invented the advanced telescope

Answer 6

Isaac newton

Question 7

He use small lens and curved mirror in his telescope

Answer 7

Isaac newton

Question 8

The father of the big bang theory

Answer 8

Georges lemaitre

Question 9

9 theories on the formation of the universe

Answer 9

Steady state universe theory
Oscillating universe theory
Planetesimal theory
Fission theory
Capture theory
Accretion theory
Planetary collision theory
Sterllar collision theory
Gas cloud theory

Question 10

New matter is quietly but continually appearing out of nothing from the spaces in the galaxies

Answer 10

Steady state universe theory

Question 11

Another big bang will occur when the universe starts to run down

Answer 11

Oscillating universe theory

Question 12

As gas swirled around eddies of gas cause the formation of the sun and planets

Answer 12

Planetesimal theory

Question 13

Bursting of the sun sent out the planets and moon

Answer 13

Fission theory

Question 14

Planets and moons were wandering around and were captured by the sun

Answer 14

Capture theory

Question 15

Small chunks of materials gradually combined and formed earth, then more chunks formed the moon

Answer 15

Accretion theory

Question 16

Earth collided with small planet producing the moon

Answer 16

Planetary collision theory

Question 17

Two stars collided and formed the planets and moons

Answer 17

Sterllar collision theory

Question 18

Gas clouds were pulled by sun’s gravity then formed into planets and moons

Answer 18

Gas cloud theory

Question 19

It means earth is the center of the universe.
This model explained why the stars seem to move around the earth

Answer 19

Geocentric model

Question 20

Use the systems of circles to describe the movement of the planets around the earth

Answer 20

Ptolemy

Question 21

Small circle where a planet moves

Answer 21

Epicycle

Question 22

Bigger circle where the epicycle in turn moves around

Answer 22

Deferent

Question 23

He proposed the heliocentric model which means sun centered

Answer 23

Nicolaus copernicus

Question 24

He polish the heliocentric model and proposed that planets move around the sun in elliptical motion

Answer 24

Johannes kepler