Original Jeopardy!

Tools of the Trade BOOM! Gravity & Inertia Brahe’s Bunch Potpourri

What type of telescope does this picture represent? a)Reflecting b)Observatory c)Refracting d)Radio

Why are satellites useful telescopes?

They can travel to planets and detect radiation that is blocked by Earth’s atmosphere.

Why is this “dish” shape important?

It catches the signal and bounces it towards the antenna in the middle.

There are 6 parts to the Electromagnetic Spectrum. What are they and how do their wavelengths change? ? / ? / Visible / ? / ? / Gamma

Back to Menu Final Jeopardy Radio Gamma The wavelength decreases from Radio ( biggest ) to Gamma ( smallest ). Radio / Infrared / Visible / UV / X-Ray / Gamma

Describe what this picture represents. What is the pitch of the siren heard by the man compared to the woman?

The Doppler Effect. The man will hear a higher pitch as the car approaches. The woman will hear a lower pitch as the car passes by.

What were the conditions like just after the beginning of the Big Bang?

The universe contained nothing but a superheated soup of particles and rapidly expanding space.

Three stars were analyzed and found to contain hydrogen. Their spectral analysis lines are pictured below. Why are they different? Hydrogen

The first line shows that the star is blue shifted ( moving towards us ). The third line shows a star that is red shifted ( moving away from us ).

How did matter form 300,000 years after the Big Bang? How did stars and planets begin to form?

Back to Menu Final Jeopardy The soup cooled enough to form atoms. These atoms had mass, and therefore gravity, to pull other atoms together, eventually forming stars and planets.

Describe what gravity is.

The force that pulls objects towards one another.

Explain what this formula means for gravity. (What does gravity depend on?) F = Gm 1 m 2 G = 6.67E-11 r 2 r 2

The force of gravity depends on the masses of the objects and their distance from one another.

What is Inertia?

Inertia is an object’s tendency to remain in motion or at rest unless acted on by an outside force.

What prevents our planet from being pulled to a fiery doom? Explain.

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What is the Geocentric model?

That Earth is the center of our solar system.

The Polish astronomer Copernicus suggested the Sun was the center. What is this model called?

The Heliocentric model.

Brahe gathered information on the movement of the planets, revealing what about their motion?

ellipse That they travel in an ellipse – a rounded, oval-like shape.

What does this animation represent?

Back to Menu Final Jeopardy Retrograde motion, which is movement in the opposite direction of another moving object

What does the Greek word Planet mean? a) Red starb) Wandering star c) Distant place

b) Wandering star c) Distant place a) Red star What does the Greek word Planet mean?

The observatory below has several advantages to help it observe space. Name 2 of them.

There is less atmosphere to block radiation; less light pollution; no clouds or precipitation.

such as one in geology or biology What is a Theory? Give an example of a theory ( such as one in geology or biology ).

A theory is a well tested scientific concept that explains a wide range of observations. Examples include the theory of Plate Tectonics or Cell Theory.

What does this animation represent?

The “expansion” of the universe. Like a balloon inflating or a cookie being baked objects in the universe are getting further apart. Back to Menu Final Jeopardy

There are 3 primary pieces of evidence to support the theory of the Big Bang. What are they?

Evidence includes… a)The even distribution of galaxies. b)Consistency of cosmic microwave background radiation (CMBR). c)Colorshifting of stars. Back to Menu