Dark matter and dark energy quiz

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1. 2. How do scientists detect dark matter?

A. By its radioactivity

B. By emitting light in the infrared spectrum

C. By its gravitational effects on visible matter

D. By its electrical charge

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

A. Albert Einstein

B. Isaac Newton

C. Michael Turner

D. Carl Sagan

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

A. Around 99%

B. Around 68%

C. Around 27%

D. Around 5%

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

A. Protons

B. Electrons

C. Neutrinos

D. Weakly interacting massive particles (WIMPs)

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

A. Solar eclipses

B. Volcanic eruptions

C. Earth's magnetic field

D. Galaxy rotation curves

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

A. Visible light

B. Dark matter

C. Dark energy

D. Nuclear energy

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

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

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

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

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

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

A. Electrons and positrons

B. Protons and neutrons

C. Photons

D. Weakly interacting massive particles (WIMPs)

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

A. Comet trajectories

B. Type Ia supernovae measurements

C. Solar flares

D. Lunar eclipses

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

A. It causes galaxies to collide

B. It slows down the expansion of the universe

C. It accelerates the expansion of the universe

D. It creates black holes

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