Physci- Models Of The Universe

Question 1

Plato (teacher) and Aristotle (student)

Answer 1

Geocentric model

Question 2

base on senses and sight
- Earth is the center of the universe

Answer 2

Geocentric

Question 3

• imperfect, changeable earth (because of the seasons)

Answer 3

Geocentric model

Question 4

• Perfect heavens (describe by spheres)
• ——— model is later tied to the teachings of the Christian religion

Answer 4

Geocentric model

Question 5

He expanded Exodus Model to use 55 spheres

Answer 5

Aristotle

Question 6

• introduced a major revision of the geocentric model in order to account for retrograde motion, the apparent occasional backward motion of planets through sky

Answer 6

Claudius ptolemy

Question 7

offset the earth from the center of the orbit of the Sun and Moon. Thus, at some places in the orbit the Sun or Moon would be closer to us and appear bigger in the sky who is this?

Answer 7

Ptolemy

Question 8

Heliocentric model comtributers

Answer 8

Aristarchus, Copernicus, Galileo

Question 9

Greek astronomers and mathematician
- Earth revolves around the Sun
- Sun is way bigger than earth
- Based his theory with the study of Hipparchus
- Rejected the geocentric model of Plato

Answer 9

Aristarchus

Question 10

• revised the concept provided by
  Aristarchus
• Why could he not open? His parents are part of the church, keeping his opinions on his own
• he died keeping this as a secret
• it took 21 years for Galileo
• Cold Case: no more evidences to push

Answer 10

Nicolaus copernicus

Question 11

Questioned by the church (pope/high
priest)
- contradict Aristotle geocentric model
- didn’t win his case, and was house arrest until the end of his life

Answer 11

Galileo

Question 12

pave way foe Heliocentric Model to be
accepted
- He wasn’t question by the church because he has different religion

Answer 12

Johannes kepler

Question 13

Series of events that marked the emergence of modern science during the early modern period, when development in math, physics, astronomy.

Answer 13

Scientific revolution

Question 14

The development if an experimental, scientific method that sought definite answer to certain limited questions couched in the framework of specific theories and the acceptance of new criteria for explanation, stressing the “how” rather than “why”

Answer 14

Scientific revolution

Question 15

Keppler’s Law of Planetary Motion

Answer 15

1. All orbiting objects travel along elliptical (not perfect circle)
2. Objects speed up when they are close to the sun

Question 16

It takes how many months to go to mars

Answer 16

7 months

Question 17

earth is center of universe. The sun, moon and stars revolve around the earth. And all other planets within our solar system revolve around the sun.
Who invented dis

Answer 17

Tycho Brahe

Question 18

The more massive the object the more
gravity it has
- Sun has more gravity

Answer 18

Isaac newton

Question 19

Who ended the long standing debate of the model of the universe?

Answer 19

Isaac newton

Question 20

What did isaac newton contribute?

Answer 20

Law of universal gravitation

Question 21

Disproving old belief: what is the first one?

Answer 21

falling objects

Question 22

What did galileo state about the first arguement?

Answer 22

Galileo: Objects will fall at the same rate, irrespective of their mass

Question 23

Galileo’s theory on falling objects may be correct if these things were not present

Answer 23

Air resistance

Question 24

What did galileo do to prove his theory about falling objects?

Answer 24

leaning tower of Pisa, he throw rock 100- 1000x, he get the average

Question 25

What did galileo want to do about the first arguement?

Answer 25

He wanted to prove the rate of fall or acceleration of an object is independent of their mass

Question 26

Aristotle’s statement about the first arguement?

Answer 26

Aristotle: heavier objects fall at a quicker rate than lighter objects

Question 27

Disproving belief: what is the second argument about?

Answer 27

Motion

Question 28

Aristotle’s statements about motion?

Answer 28

Objects do not move without a force - Objects in motion always require a force to keep them moving - Objects seek their natural state, which is at rest - Mechanical equilibrium can only be static

Question 29

The opposing force that stops motion?

Answer 29

Friction

Question 30

Galileo’s theory in motion

Answer 30

Theory: Gravity produces constant acceleration - used experiment to draw conclusion

Question 31

It is the movement or change in location of an object overtime - It is often describe in terms of direction, location, and speed

Answer 31

Motion

Question 32

Every object has a proper place in the universe

Answer 32

Aristotle

Question 33

Motion of the sun, moon, and stars: perfect circles - Sun, Moon and stars formed of perfect, incorruptible substance What kind of motion

Answer 33

Celestial motion

Question 34

Sun, Moon and stars formed of perfect, incorruptible substance called

Answer 34

Ether

Question 35

This motion is different from anything on the Earth.

Answer 35

Celestial motion

Question 36

Thought to be either straight up or straight down What kind of motion?

Answer 36

Natural motion

Question 37

Solid objects (or liquids) fall because they seek their natural resting place which is the center of the Earth What kind of motion?

Answer 37

Natural motion

Question 38

Boulders on the ground - Air, smoke and flames like to rise upwards - Heavy things fall and very light things rise What kind of motion?

Answer 38

Natural motion

Question 39

Impose motion: Horizontal Motion - It was the result of forces that pushed or pulled What kind of motion?

Answer 39

Violent motion

Question 40

It had an external cause, object in their natural resting places could not move by themselves. What kind of motion?

Answer 40

Violent motion

Question 41

An arrow shot from bow and a rock or stone thrown at an angle What kind of motion?

Question 42

Is the force that acts between materials that touch as they move past each other - It caused by the irregularities in the surfaces of objects that are touching

Answer 42

Friction

Question 43

a type of motion wherein no other external forces aside from gravity influences the acceleration of an object

Answer 43

Free fall

Question 44

It states that “Every object in the universe attracts every other object with a force which is directly proportional to product of their masses and inversely proportional to the square of distance between them

Answer 44

Universal law of gravitation

Question 45

Free fall value

Answer 45

9.8 m/s^2

Question 46

Formula of force

Answer 46

F= G m1 m2/ r^2

Question 47

Gravitational constant

Answer 47

= 6.668x10^-8 dynes cm2/g2 = or 6.67x10^-11 N m2/kg2

Question 48

We see the world by sending “something” out of our eyes and that reflect from the objects According to?

Answer 48

Aristotle

Question 49

is collected by small probes from our eyes and returns to it

Answer 49

Light

Question 50

Light is a particle - Streams of tiny particles moving in all direction from source His idea was accepted Who is stated?

Answer 50

Isaac newton

Question 51

In the 17th century, some properties of light were already known

Answer 51

a. Light has different colors b. Light can travel through vacuum c. Light can be reflected and refracted

Question 52

Light travels in waves in all direction - Each point on the wave front of a disturbance was considered to be a new source - wave are disturbances - for him light scatters

Answer 52

Christian hyugens

Question 53

Light combines/overlaps/cancels What is this?

Answer 53

Interference

Question 54

Who discovered interference?

Answer 54

Thomas young

Question 55

Who discovered electromagnetic waves?

Answer 55

Maxwell

Question 56

Explains colors of hot objects with new idea of “quanta” (“photon”) of light energy Who discovered this?

Answer 56

Max planck

Question 57

We have two contradictory pictures of reality separately neither of them fully explains the phenomena of light but together they do To conclude... ➢ Lighth as dual nature ➢ Light as aparticle ➢ Light as a wave Who discovered this?

Answer 57

Albert einstein

Question 58

Mass in motion

Answer 58

Momentum

Question 59

Kepler’s law of planetary motion

Answer 59

1. Orbit are ellipses 2. The line joining the planet and the sun of a planet sweeps equal areas equal intervals of time

Question 60

Gravity value

Answer 60

9.8 m/s^2

Question 61

3 laws of motion

Answer 61

Law of inertia Law of acceleration Law of action

Question 62

An object at rest will remain at rest and an object in motion will remain at constant speed unless acted by an unbalanced force. Which law

Answer 62

Law of intertia

Question 63

The acceleration of an object depends on the mass of an object Which law?

Answer 63

Law of acceleration

Question 64

Every action has an equal opposite reaction

Answer 64

Third law