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Chemistry + Physics ( Mid Years ) > Physics - Checklist > Flashcards

Physics - Checklist Flashcards

1
Q

What is meant by geocentric?

A

A model of the Solar System that places the Earth at the center

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2
Q

What observations led to our present model of the Solar System?

A

Various astronomical observations including planetary motions

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3
Q

What is the age of the Solar System?

A

Approximately 4.6 billion years

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4
Q

What theory explains how the Universe started?

A

The Big Bang theory

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5
Q

What are the types of orbits a satellite can take?

A

Geostationary, polar, elliptical

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6
Q

What are some uses of satellites?

A

Communication, weather monitoring, GPS, Earth observation

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7
Q

What is the Big Bang?

A

The event that marks the beginning of the Universe

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8
Q

What is one risk and one benefit of the space programme?

A

Risk: High cost; Benefit: Technological advancements

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9
Q

What is one use of telescopes?

A

To observe distant celestial objects

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10
Q

What are the two types of telescope?

A

Refracting and reflecting telescopes

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11
Q

What conditions are required for life like that on Earth to exist?

A

Presence of water, suitable temperature range, atmosphere

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12
Q

How do astronomers search for life on other planets?

A

By studying exoplanet atmospheres and conditions

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13
Q

What is the heliocentric model of the Solar System?

A

A model that places the Sun at the center

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14
Q

What is an observation that could not be explained by the geocentric model?

A

Retrograde motion of planets

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15
Q

What is the importance of evidence in developing the heliocentric model?

A

It provides a basis for validating the model’s accuracy

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16
Q

Why could atoms not be formed immediately after the Big Bang?

A

The Universe was too hot and dense

17
Q

How is the Big Bang theory supported by evidence?

A

Cosmic microwave background radiation and redshift of galaxies

18
Q

What are the benefits of the space programme?

A

Scientific discovery, technological innovation, international collaboration

19
Q

How does one type of telescope work? (Fill in the blank)

A

A ray diagram can explain how a _______ telescope works

20
Q

How do astronomers compare the orbits of different satellites?

A

By analyzing their trajectories and altitudes

21
Q

How do astronomers compare the different uses of satellites?

A

By evaluating their applications in various fields

Chemistry + Physics ( Mid Years ) (6 decks)

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