Dark matter and dark energy quiz

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1. 4. What role does dark energy play in the universe?

A. It accelerates the expansion of the universe

B. It causes galaxies to collide

C. It creates black holes

D. It slows down the expansion of the universe

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2. 7. What observational evidence supports the existence of dark energy?

A. Comet trajectories

B. Lunar eclipses

C. Type Ia supernovae measurements

D. Solar flares

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3. 1. What is dark matter primarily composed of?

A. Photons

B. Electrons and positrons

C. Protons and neutrons

D. Weakly interacting massive particles (WIMPs)

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4. 8. Which scientist is credited with the term "dark energy"?

A. Carl Sagan

B. Michael Turner

C. Isaac Newton

D. Albert Einstein

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5. 6. How much of the universe is estimated to be dark matter?

A. Around 68%

B. Around 27%

C. Around 99%

D. Around 5%

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6. 3. Which of the following is a major evidence for dark matter's existence?

A. Galaxy rotation curves

B. Solar eclipses

C. Volcanic eruptions

D. Earth's magnetic field

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7. 9. What kind of particles are favored candidates for dark matter?

A. Weakly interacting massive particles (WIMPs)

B. Protons

C. Neutrinos

D. Electrons

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8. 2. How do scientists detect dark matter?

A. By its gravitational effects on visible matter

B. By emitting light in the infrared spectrum

C. By its radioactivity

D. By its electrical charge

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9. 5. Which type of energy dominates the universe's composition?

A. Nuclear energy

B. Visible light

C. Dark matter

D. Dark energy

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10. 10. How does dark energy differ from dark matter?

A. Dark energy emits radiation, while dark matter absorbs radiation

B. Dark energy is visible, while dark matter is invisible

C. Dark energy is cold, while dark matter is hot

D. Dark energy affects the universe's expansion rate, while dark matter influences galaxy formation

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