Special relativity - Test
- 1. Special relativity is a fundamental theory in physics that describes the relationship between space and time. Developed by Albert Einstein in 1905, special relativity revolutionized our understanding of the universe. It posits that the laws of physics are the same for all observers, regardless of their relative motion. One of the key principles of special relativity is that the speed of light in a vacuum is constant for all observers, leading to phenomena such as time dilation and length contraction. These effects become more pronounced as objects approach the speed of light. Special relativity is essential for understanding the behavior of particles at high speeds and forms the basis for Einstein's famous equation, E=mc2, which relates energy and mass. Overall, special relativity has had a profound impact on physics and our understanding of the nature of space and time.
Who formulated the special theory of relativity?
A) Galileo Galilei
B) Albert Einstein
C) Stephen Hawking
D) Isaac Newton
- 2. What is the speed of light in a vacuum?
A) 100,000,000 meters per second
B) 1,000,000,000 meters per second
C) 299,792,458 meters per second
D) 500,000,000 meters per second
- 3. Which quantity remains the same in all inertial frames of reference?
A) Time
B) Speed of light
C) Length
D) Mass
- 4. The Michelson-Morley experiment aimed to detect the presence of what medium for light propagation?
A) Luminiferous aether
B) Quantum vacuum
C) Dark matter
D) Plasma
- 5. What does the equation E=mc² describe in special relativity?
A) Momentum conservation
B) Force and acceleration
C) Mass-energy equivalence
D) Potential energy
- 6. What term describes the fact that the laws of physics are the same for all observers, regardless of their relative states of motion?
A) Principle of relativity
B) Law of conservation of energy
C) Law of inertia
D) Quantum entanglement
- 7. What does the term 'spacetime' refer to in the context of special relativity?
A) Quantum entanglement
B) Alternate dimensions
C) Integration of space and time into a single continuum
D) Space travel through time
- 8. In special relativity, what happens to the mass of an object as it approaches the speed of light?
A) It becomes zero
B) It remains constant
C) It decreases
D) It increases
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