Big Bang Theory

Big Bang Theory

Multiple Choice

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 x 10⁹ Hz. Using the electromagnetic spectrum provided, investigators were most likely using a telescope that detects -

• microwaves

• visible light

• x-rays

• gamma rays

Multiple Choice

Scientists observed a celestial object emitting waves with a frequency of 1.41 x 10⁸ Hz. What type of telescope did the scientists have to use to view this object?

• Radio wave

• Microwave

• X-ray

• Ultraviolet wave

Open Ended

Explain the difference between X-rays and Radio waves. (think wavelength and frequency)

Multiple Choice

A star is born when ________________ begins to happen.

• nuclear fusion

• nuclear abrasion

• crying

• nuclear fission

Multiple Choice

Stars can take different paths due to having different _____________

• temperature

• mass

• brightness

• color

Multiple Choice

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion

• gravity

• hydrogen

• iron

Multiple Choice

The only force acting on the nebulae is ________.

• thermal

• singular

• gravity

• microscopic

Open Ended

Explain why nebulas are larger than the stars they create

Multiple Choice

Stars that are brighter are usually...

• Hotter

• Bigger

• More massive

• Smaller

Multiple Choice

The H-R diagram classifies stars based on what factors?

• Temperature and luminosity

• Number of planets

• What constellation they're in

• Temperature and fusion

Multiple Choice

Compared to a red giant star, a blue supergiant is...

• Hotter and brighter

• Hotter and not as bright

• Colder and brighter

• Colder and not as bright

Open Ended

Why is the Sun the largest star we see?

Multiple Choice

What are in galaxies?

• ice and rock

• dust, gas, and stars

• stars and ice

• water and dust

Multiple Choice

What type of galaxy is this?

• Spiral

• Elliptical

• Irregular 

• Irrational

Multiple Choice

Place these celestial bodies in order from smallest to largest

• Planet, Star, Nebula, Galaxy, Universe

• Universe, Galaxy, Nebula, Star, Planet

• Planet, Nebula, Star, Galaxy, Universe

• Planet, Galaxy, Star, Nebula, Universe

Multiple Choice

Distance measurement used by astronomers for distant objects.

• Kilometers

• Light Years

• Miles

• Light Seconds

Multiple Choice

An explanation a scientist makes that we can test to see if it is true or not is a _________.

• hypothesis

• theory

• law

• question

Open Ended

What is a theory?

Theory

A logical explanation of the events that occur in nature

Open Ended

What are some other theories you are aware of?

Everything in the universe started as a single mass

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Big Bang

Multiple Choice

The universe is expanding!  This means that:

• all of the galaxies are spreading out.

• the universe must have started from a single point.

• the universe is cooling down.

• all of the above.