Special Relativity Review
A Grade 12 physics worksheet covering key concepts in special relativity, including postulates, time dilation, length contraction, and mass-energy equivalence.
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Special Relativity Review
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Read each question carefully and provide your best answer based on the principles of special relativity.
1. Which of the following is NOT a postulate of special relativity?
The laws of physics are the same in all inertial reference frames.
The speed of light in a vacuum is the same for all observers, regardless of their motion relative to the source.
The speed of light in a vacuum depends on the relative motion of the observer and the source.
None of the above.
2. Time dilation occurs when:
An object moves at a speed approaching the speed of light.
An object is at rest relative to the observer.
An object experiences a strong gravitational field.
The observer is moving faster than the object.
3. According to special relativity, the faster an object moves, the its measured length becomes in the direction of motion.
4. The equation E=mc² describes the equivalence of mass and .
5. An observer traveling at a relativistic speed would perceive their own clock running slower.
True
False
6. Briefly explain the concept of length contraction.
7. What is an inertial reference frame?
8. A spaceship travels at 0.8c (80% the speed of light) relative to Earth. A clock on Earth measures 10 years. How much time has passed on the spaceship?