Question 1

What is the big bang theory?

Accepted Answer

A theory that states that the universe started in a small mass and then expanded, the expansion cooled down the temperature and that resulted in the formation of matter, energy, space, and time.

Answer

A theory that states that the universe started in a large mass and then imploded to form everything.

Answer

A theory that states that the universe was there, will be, and is there. Is homogeneous and isotropic.

Answer

A theory that states that the universe is slowly coming back to a center.

Question 2

What were the original two elements in our universe?

Accepted Answer

Helium and Hydrogen

Answer

Hydrogen and Lithium

Answer

None of the above

Answer

Helium and Oxygen

Question 3

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called nuclear fusion, this process occurs in: ______

Accepted Answer

Stars. That´s one of the reason stars have their own light.

Answer

Planets. This is the reason planets reflect the sun´s light.

Answer

Stars. This is the reason stars are balls of fire.

Answer

Earth´s core. This is the reason the core is melting the mantle.

Question 4

The red-shift in the spectral lines of light, reaching us from other galaxies implies that these galaxies ____________.

Accepted Answer

Are moving farther apart from one another

Answer

Are in rapid rotation

Answer

Are moving closer to one another

Answer

Redshift doesn´t exist

Question 5

The steady-state theory holds that the universe:____

Accepted Answer

Looks essentially the same from every spot in it and at every time. It is homogenous and isotropic in space and time. It has a uniform density so the matter is continuously created.

Answer

None of the above

Answer

Is homogeneous and its density is uniformly distributed. In the beginning, the tiny dot expanded and spread out all the universe´s density.

Answer

Is a black dot that expanded to form all space, matter, time, and energy. It is continuously changing and it probably is going to crush.

Question 6

The arguments supporting the Big Bang theory mostly contradict some of the Steady State theory. The matter is created out of nothing and the never-changing universe is refuted by: _____

Accepted Answer

Light from distant galaxies will get redshifted, the wavelengths of light they're releasing will get longer, and thus redder. Matter cannot be created or destroyed, only transformed.

Answer

Light from distant galaxies will get redshifted, the wavelengths of light they're releasing will get longer, and thus redder, from the perspective of

Answer

None of the above

Answer

The law of conservation of matter states that matter is never created or destroyed, it is only transformed from one state to another.

Question 7

The age of the universe is probably close to___________________

Accepted Answer

14 billion years

Answer

30 billion years

Answer

4 ½ billion years

Answer

15 billion years

Question 8

The term big bang refers to _______________.

Accepted Answer

The origin of the universe

Answer

The formation of a quasar

Answer

A supernova explosion

Answer

The ultimate fate of the universe

Question 9

During science class, when we were discussing the universe's expansion, we talked about TIME. Why do we say that time is relative? Choose the option that best answers the question.

Accepted Answer

Time is relative because it depends on the observer. For example, if the observer is having a good moment, time flies; but time passes slowly if the observer is not having a good moment.

Answer

Time is not relative because time does not exist it is an illusion. It is not measurable.

Answer

Time depends on space and quantum physics. If the observer is looking at the hour it goes slowly

Question 10

We talked about electrons, protons, and neutrons during class, and we talked about their charges. We said electrons are negatively charged, protons have a positive charge and neutrons have no charge. To explain how charges work I did a demonstration with a ruler and little pieces of paper. Would you please answer why the papers are attracted to the ruler? Choose the option that best answers the question.

Accepted Answer

When Marce rubbed the ruler on her hair, the negatively charged ruler is brought near to the paper pieces, they are attracted to the ruler as the electrons move around on the paper because of the large charge on the ruler. Electrons will move away from the ruler leaving a positive charge on the paper near the ruler, so they are attracted.

Answer

That did not happen with the ruler during class. We did not carry out that demonstration.

Answer

When Marce rubbed the ruler on her hair, the negatively charged ruler is brought near to the paper pieces, because it immediately becomes magnetic due to the amount of magnetite in Marce´s hair.

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