Science

Question 1

The shape of the earth is

Answer 1

oblate spheroid (geoid)

Question 2

claimed that earth is spherical.

Answer 2

Phythagoras

Question 3

During lunar eclipse, the shadow casted by the earth is

Answer 3

spherical

Question 4

has 3 arguments that proving earth is spherical.

Answer 4

aristotle

Question 5

3 arguments of aristotle

Answer 5

1. Position of the north star
2. Shapeofsunandmoon
3. Disappearing ships.

Question 6

measured the circumference of the earth

Answer 6

eratosthenes

Question 7

Approximate circumference of the earth is

Answer 7

40,250km

Question 8

phases of the moon

Answer 8

anaxagoras

Question 9

arranged 850 stars according to brightness

Answer 9

hipparchus

Question 10

Brightest stars are

Answer 10

blue

Question 11

Dimmest star

Answer 11

red

Question 12

coolest to hottest star

Answer 12

Red-Orange-Yellow-White-Blue

Question 13

The daily motion of stars and other celestial bodies as a result of
earth’s rotation.

Answer 13

diurnal motion

Question 14

The yearly motion of stars as a result of earth’s revolution.

Answer 14

annual motion

Question 15

example of diurnal motion

Answer 15

sunset and sunrise

Question 16

eratosthenes compared the shadow from

Answer 16

Syene and Alexandria

Question 17

setof13constellations

Answer 17

zodiac

Question 18

sun’s path

Answer 18

ecliptic

Question 19

Occurs when sun passes celestial equator

Answer 19

equinoxes

Question 20

September 22-23

Answer 20

autumnal equinox

Question 21

March 20-21

Answer 21

vernal equinox

Question 22

the sun passes the highest or lowest point at celestial
equator.

Answer 22

solstice

Question 23

Summer solstice

Answer 23

jume 20-22

Question 24

winter solstice

Answer 24

dec 20-23

Question 25

lunar

Answer 25

sun-earth-moon

Question 26

solar eclipse

Answer 26

sun-moon-earth

Question 27

new moon

Answer 27

solar eclipes

Question 28

full moon

Answer 28

lunar eclipse

Question 29

ptolemic model

Answer 29

geocentric

Question 30

copernician model

Answer 30

heliocentric

Question 31

brahe model

Answer 31

geoheliocentric

Question 32

Earth is the center of the universe/solar system  All other celestial bodies including sun revolves around it.

Answer 32

ptolemic model

Question 33

Proposed by Nicolaus Copernicus  Sun is the center  All other bodies including earth revolves ar

Answer 33

copernician model

Question 34

tych brahe  2 centers: (1) The earth – sun and moon revolves around it  (2) the sun – all remaining planets revolved around it.

Answer 34

Brahe model

Question 35

changes in location of object

Answer 35

motion

Question 36

push or pull

Answer 36

force

Question 37

force that pulls object towards the center/ground

Answer 37

gravity

Question 38

changes in speed/velocity

Answer 38

acceleration

Question 39

distance traveled over period of time

Answer 39

speed

Question 40

a type of friction that occurs when air pushes an object causing it to decelerate

Answer 40

air resistance

Question 41

– resistance of medium in response to movement (resistance to motion)

Answer 41

inertia

Question 42

resistance to stopping

Answer 42

momentum

Question 43

If there is unbalanced (not constant) force, there will be unequal or not constant movement. For example

Answer 43

 A car accelerating  Swing moving back and forth  A can rolling down

Question 44

"every object has proper place on the universe”

Answer 44

aristorlean view in motion

Question 45

verticalmotion  Straight up or straight down  With the effect of gravity  Heavier objects will fall while lighter objects will rise  The speed/ rate of fall is dependent on the object’s size, mass, shape etc

Answer 45

natural motion (vertical)

Question 46

 Forward/backward  Movement as a result of push or pull (force)

Answer 46

violent motion- horizontal motion

Question 47

newton law of motion

Answer 47

1st-law of inertia 2nd- law of acceleration 3rd-law of onteraction

Question 48

A body at rest will stay at rest unless acted upon by an external force

Answer 48

1st law of inertia

Question 49

 Acceleration is directly proportional to force  Acceleration is inversely proportional to mass.  F=ma

Answer 49

law of acceleration

Question 50

 For every action, there is equal and opposite reaction.

Answer 50

law of interaction

Question 51

 Resistance to stopping  Product of mass and velocity  Standard unit is kg m/s  Heavier objects are harder to stop than lighter ones.

Answer 51

momentum

Question 52

combination of vertical and horizontal motion.

Answer 52

projectile motion

Question 53

the object will continue in motion if unimpeded. Or unless there is force or friction that causes it to stop moving. He also introduced momentum.

Answer 53

horizontal motion

Question 54

it will not fall depending on the mass, size and shape of object. But rather, on the distance and time of fall.  According to him, in absence of air resistance, two objects regardless of size and shape will drop at the ground the same time.  Objects near the ground will speed up.  In free fall, bodies will fall at constant acceleration.

Answer 54

vertical motion

Question 55

when did eratosthenes measured the circumference and what did he use

Answer 55

during 12 noon solstice using his stick