Science at the Frontier — Module Assessment

Question 1

In the double-slit experiment with single particles, what happens when a detector records which slit each particle goes through?

Accepted Answer

The interference pattern disappears and two plain bands appear

Answer

The particles travel faster than light

Answer

The particles merge into a single wave permanently

Answer

Nothing observable changes about the result

Question 2

What did John Bell's 1964 theorem contribute to the study of entanglement?

Accepted Answer

It turned a philosophical dispute into a testable experimental limit

Answer

It proved entanglement can send messages faster than light

Answer

It showed consciousness is required to collapse a quantum state

Answer

It demonstrated that particles secretly agree on outcomes in advance

Question 3

What did the case of Henry Molaison ('H.M.') most clearly demonstrate?

Accepted Answer

The hippocampus is essential for forming new long-term memories, and memory is not a single system

Answer

Humans use only about ten percent of their brains

Answer

Memory works like an exact video recording of events

Answer

Consciousness can be fully explained by blood flow in the brain

Question 4

Which statement best describes what an fMRI scan can tell us?

Accepted Answer

It records blood-flow changes that indicate which regions are more active, not the content of thoughts

Answer

It directly decodes the specific thoughts a person is having

Answer

It proves the brain has a large unused reserve of capacity

Answer

It provides a complete wiring diagram of every neuron

Question 5

What did the 1952 Miller-Urey experiment demonstrate?

Accepted Answer

That amino acids can form from simple chemicals under early-Earth-like conditions

Answer

That living cells can be assembled from scratch in a laboratory

Answer

That life on Earth arrived from another planet

Answer

That DNA can replicate without any enzymes

Question 6

Why are extremophiles significant for the search for life beyond Earth?

Accepted Answer

They show life can thrive in harsh conditions, widening where life might exist elsewhere

Answer

They prove that life has already been found on Mars

Answer

They show life requires sunlight and mild temperatures

Answer

They are the ancestors of all exoplanet organisms

Question 7

In a chaotic system, why do long-range forecasts fail even when the rules are exact?

Accepted Answer

Tiny errors in the starting state grow rapidly into large differences over time

Answer

The system contains genuine randomness with no underlying rules

Answer

The rules themselves change unpredictably from moment to moment

Answer

Chaotic systems have no measurable starting conditions at all

Question 8

Which statement best describes emergence?

Accepted Answer

A whole gaining properties that its individual parts do not have

Answer

A property that appears only when the rules of a system are complicated

Answer

The tendency of complex systems to become fully predictable over time

Answer

A supernatural quality added to matter that science cannot explain

Question 9

What did Alan Turing's 1950 imitation game propose as a way to address the question of whether machines can think?

Accepted Answer

Replacing the question with a test of whether a judge can distinguish a machine from a human by conversation alone

Answer

Measuring the electrical activity of a machine's circuits to detect thought

Answer

Proving mathematically that machines are conscious

Answer

Comparing a machine's brain scan with a human's

Question 10

Why is AlphaFold's 2020 achievement a good example of intelligence as a scientific frontier rather than a settled question?

Accepted Answer

It solved a decades-old protein-folding problem yet predicts structures without understanding biology the way a scientist does

Answer

It proved that machines are now conscious

Answer

It showed that human intelligence has been fully explained

Answer

It demonstrated that narrow and general intelligence are the same thing

Question 11

What did Vera Rubin's 1970s observations of galaxy rotation reveal?

Accepted Answer

That outer stars orbit surprisingly fast, implying far more mass than the visible matter can account for

Answer

That galaxies do not rotate at all

Answer

That the universe's expansion is slowing down

Answer

That dark energy fills the space between galaxies

Question 12

The 1998 supernova observations, later recognised with the 2011 Nobel Prize in Physics, are best known for showing what?

Accepted Answer

That the universe's expansion is accelerating, pointing to dark energy

Answer

That dark matter does not exist

Answer

That the Sun is powered by nuclear fusion

Answer

That galaxies are not moving apart at all

Question 13

You read a headline: "New study finds chocolate boosts memory." It reports one small, unreplicated study whose authors call it 'preliminary.' What is the best-calibrated response?

Accepted Answer

Treat it as a tentative frontier finding — interesting, but low-confidence until it is replicated.

Answer

Accept it as established fact, since it was published and reported in the news.

Answer

Dismiss it entirely, because scientists are always changing their minds anyway.

Answer

Believe it only if it confirms something you already hoped was true.

Question 14

Why is the 2011 OPERA faster-than-light neutrino episode often cited as a model of good scientific thinking?

Accepted Answer

The team treated the surprising result as an anomaly, invited scrutiny, and accepted correction when instrumental faults were found.

Answer

The team announced that relativity was disproven and urged the public to accept the new result.

Answer

The result was immediately confirmed by every other laboratory that tried it.

Answer

The physicists refused to publish anything until they were completely certain.