Science Space

Question 1

Diffrent belefis (china)

Answer 1

People in china and india belived that the earth is flat and held up by 12 pillars

Question 2

Diffrent beilefs(thailand)

Answer 2

People in Thailand believed that a
solar eclipse occurred when a god
called Rahu swallowed the Sun.

Question 3

The wood turtle(india)

Answer 3

In India people believed that the
Earth was supported on the back of
a giant wooden turtle.

Question 4

Describe the similarities and differences between the geocentric and the heliocentric
models.

Answer 4

The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. The early heliocentric models consider the sun as the center, and the planets revolve around the sun.

Question 5

Big bang

Answer 5

The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point (13.7billion years ago) then expanded and stretched to grow as large as it is right now—and it is still stretching!

Question 6

The conditions to send a satellite into orbit

Answer 6

Satellites are able to orbit around the planet because they are locked into speeds that are fast enough to defeat the downward pull of gravity

Question 7

Orbits(polar)

Answer 7

This satellite go over the north and south pole in a polar orbit satellites are useful for mapping

Question 8

Orbit (LEO)

Answer 8

There are lots of satellites, such as the international space station in Low Earth Orbit. This is an orbit below 1000km from Earth some Leo satellites go over the North Pole and south pole.

Question 9

Benefits of the space programme

Answer 9

Health and medicene transportation,public safety,information technology

Question 10

Risks of space programme

Answer 10

Spcae radiation,isolation distance from Earth,lack of gravity

Question 11

Do aliens exist?

Answer 11

As there billions of stars and galaxies theres a chance of aliens existing

Question 12

Exo planets

Answer 12

A planet orbiting a star that is not our sun

Question 13

When do scientists use mathematical models

Answer 13

Scientists use mathematical models.these are very useful when you cannot do experiments to collect data

Question 14

What is a mathematical model

Answer 14

As set of rules using maths or usually using a comuter that helps you predict what could happen

Question 15

What does frank drake want to calculate

Answer 15

Working out how many planets are likely to have life on them. The search for alien life continues

Question 16

SETI

Answer 16

Search for extra-terrestrial intellgence

Question 17

Who came up with the heliocentric model of the universe

Answer 17

Galileo galliei

Question 18

What are the required conditions for habitable Zone

Answer 18

Atmosphere, with oxygen water and a sutiable climate

Question 19

How to find out mean

Answer 19

To find the mean, add all the numbers together then divide by the number of numbers.

Question 20

How many planets are in the solar system

Answer 20

8

Question 21

Why is the moon classified as a natural satellite

Answer 21

It orbits planet

Question 22

Describe the orbit of a artifical satellite

Answer 22

Circullar orbit

Question 23

Mars appers to move backwards across the sky name this type of motion

Answer 23

Retrogade motion

Question 24

Scientists now believe that theory 2 is correct suggest why they might think theory 1 is wrong

Answer 24

New evidence

Question 25

Sequence of a star much bigger than the sun

Answer 25

Protostar>main sequence star>red super giant>supernova>neutral/black hole

Question 26

Sequence of a star the same size as the sun

Answer 26

Protostar>main sequence star>redgiant>whitedwarf> black dwarf

Question 27

Explain how atoms of the elements helium are formed in a star

Answer 27

When a star becomes a red giant it fuses heluiem

Question 28

Explain how atmos of very heavy elements, such as gold were formed

Answer 28

Heavy elements formed when a massive star collapes than explodes as a supernova fussion

Question 29

Describe what happens to a star much bigger than the Sun, once the star reaches the end of the ‘main sequence’ period of its life cycle. Your answer should include the names of the stages the star passes through.

Answer 29

When a star reaches the end of the main sequence star runs out of hydrogen the star expands the star cools it forms a red super giant. supernova forms heaver elements core shrinks becoming a neutron star if mass large enough core collapses and black hole forms

Question 30

How does a Refracting Telescope work?

Answer 30

Objective lens,focal length,eye piece

Question 31

What is the major problem of the refracting telescope?

Answer 31

Causes blurry image.

Question 32

How does a Reflecting Telescope work?

Answer 32

Eye piece lens,concave mirror, flat mirror

Question 33

Describe one similarity and one difference between reflecting and refracting telescopes

Answer 33

The main difference between a refracting telescope and a reflecting telescope is how they magnify light from distant objects. Similarity is both telescopes will make a small and inverted image of whatever it's pointed at

Question 34

I can suggest an observation that could not be explain by the geocentric model.

Answer 34

The phases of Venus

Question 35

I can explain why atoms could not be formed immediately after the Big Bang

Answer 35

the universe was both too hot and too dense for elements to form.

Question 36

I can explain ways in which the Big Bang theory is supported by evidence.

Answer 36

the discovery in the 1960s of cosmic microwave background radiation

Question 37

I can explain different techniques astronomers use to search for possible habitable planets.

Answer 37

The transit method is the most prolific, but there's also the radial velocity method, direct imaging.

Question 38

Describe how astronomers use telescopes

Answer 38

using curved mirrors to gather and focus light from the night sky.

Question 39

Describe two types of telescope

Answer 39

Refractor Telescopes utilize specially designed lenses to focus incoming light into an image for you to see with your eye or capture with a telescope camera. Reflectors use mirrors, which causes light to reflect at various angles within the optical tube, extending the overall light path.

Question 40

Describe how a Convex lens works

Answer 40

Convex lenses refract light inward toward a focal point.

Question 41

Describe how astronomers search for life on other planets. Include SETI and Carl Sagan!

Answer 41

using radio telescopes to search for signals from other civilizations.

Question 42

What is accuracy

Answer 42

Accuracy:The accuracy of a measurement is how close a result comes to the true value.

Question 43

Precisied

Answer 43

Is close to the answer but not as right as the answer

Question 44

Repatable result

Answer 44

Same person reapts the expirement and gets the same answer everytime

Question 45

Reproducible

Answer 45

Anyone can get the same results

Question 46

Resolution

Answer 46

Smallest reading on a thermometer

Question 47

Anomly

Answer 47

Anomalous result: anomalous results dont fit the pattern and should be ignored and not included in the mean