- 1. E=mc² by David Bodanis is a captivating exploration of the famous equation formulated by Albert Einstein that fundamentally changed our understanding of energy, mass, and the universe. In this accessible yet deeply insightful book, Bodanis delves into not only the scientific underpinnings of the equation itself but also the historical context and the lives of the key figures involved in its development. Through engaging storytelling, he takes readers on a journey through the scientific revolution, highlighting the contributions of figures such as Einstein, as well as lesser-known individuals whose work laid the groundwork for this groundbreaking theory. Bodanis illustrates how E=mc² embodies the profound relationship between mass and energy, encapsulating the idea that they are interchangeable. He further explores the implications of this equation, discussing how it paved the way for advances in physics and technology, including nuclear energy. By weaving together science, history, and biography, Bodanis not only explains the equation but also emphasizes its significance in understanding the cosmos and our place within it. E=mc² is not just a mathematical formula but a window into the workings of the universe, and Bodanis's narrative brings this concept to life for readers, making complex ideas accessible and engaging.
What does 'c' represent in the equation?
A) The speed of light.
B) The speed of sound.
C) The speed of gravity.
D) The speed of an electron.
- 2. What type of energy does E=mc² primarily describe?
A) Thermal energy.
B) Nuclear energy.
C) Chemical energy.
D) Mechanical energy.
- 3. What phenomenon did E=mc² help to explain?
A) Gravity.
B) Magnetism.
C) Nuclear fission and fusion.
D) Electricity.
- 4. What does mass-energy equivalence imply?
A) Energy can be created from nothing.
B) Mass is irrelevant in physics.
C) Mass can be converted to energy.
D) Energy cannot change forms.
- 5. What is 'mass' in the context of E=mc²?
A) A volume measure.
B) A measure of force.
C) A measure of matter.
D) A type of energy.
- 6. E=mc² shows the relationship between energy and mass in which field of science?
A) Physics.
B) Biology.
C) Chemistry.
D) Economics.
- 7. How does E=mc² relate to the sun's energy?
A) The sun's energy comes from chemical reactions.
B) The sun converts mass into energy via fusion.
C) The sun emits energy without mass.
D) The sun generates energy from darkness.
- 8. What impact did E=mc² have on modern physics?
A) It disproved classical mechanics.
B) It simplified quantum theory.
C) It affected only astrophysics.
D) It revolutionized our understanding of energy and mass.
- 9. What is a direct consequence of E=mc² for nuclear reactions?
A) Energy can be freely created.
B) Energy is always conserved.
C) Mass is transformed into a large amount of energy.
D) Mass cannot be destroyed.
- 10. How did E=mc² affect humanity's view of the universe?
A) It deepened the understanding of energy's role.
B) It suggested the universe has no secrets.
C) It created a deterministic view of life.
D) It made the universe seem smaller.
- 11. What does 'E' symbolize according to E=mc²?
A) Electricity.
B) Emotional energy.
C) Entropic forces.
D) Energy.
- 12. Who originally formulated the theory of relativity?
A) Niels Bohr
B) Richard Feynman
C) Albert Einstein
D) Isaac Newton
- 13. In what year was the equation E=mc² first published?
A) 1925
B) 1905
C) 1915
D) 1895
- 14. E=mc² is a part of which of Einstein's theories?
A) Special relativity
B) Quantum mechanics
C) General relativity
D) Classical mechanics
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