What did Edwin Hubble discover about the universe in 1929?

Understanding Cosmological Redshift and Energy Conservation

Interactive Video
•

Sophia Harris
•
Physics, Science
•
9th - 12th Grade
•
Hard
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The universe is contracting.
The universe is static.
The universe is expanding.
The universe is rotating.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the expansion of the universe similar to a loaf of bread rising?
Galaxies move through space like raisins through dough.
The dough itself expands, causing raisins to spread apart.
The loaf remains the same size as it bakes.
Raisins shrink as the dough rises.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the energy of light as its wavelength increases?
Energy increases.
Energy remains constant.
Energy decreases.
Energy is absorbed by space.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is energy not conserved during cosmological redshift?
Space is filled with friction.
Photons gain energy from space.
SpaceTime itself is changing.
Energy is transferred to dark matter.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Noether's theorem relate to in physics?
The symmetry of space.
The conservation of energy.
The expansion of the universe.
The speed of light.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Noether's theorem, what is energy conservation a consequence of?
Photon interaction.
Space contraction.
Time invariance.
Gravitational waves.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did Einstein's theory of general relativity show about SpaceTime?
It is filled with dark matter.
It is a constant medium.
It can warp, ripple, and expand.
It is static and unchanging.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main takeaway from the philosophical reflection at the end of the video?
The laws of physics are absolute.
Our understanding of universal laws is limited.
The universe is simple and predictable.
Energy is always conserved.
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What analogy is used to describe the limitations of our understanding?
A bird in a cage.
A fish in a pond.
A frog in a well.
A cat in a box.
10.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the frog in the well story illustrate?
The value of simplicity.
The limitations of perspective.
The dangers of ignorance.
The importance of exploration.
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