Summary

• Relativistic mechanics
• Lorentz transformation
• Spacetime

• Special relativity review
  
Example #1
TZD2e 2.18
TZD2e 2.19


• Exam I
• Bring a calculator (no mobile devices allowed) and your prepared 8-½×11 reference sheet
• 5 multiple-choice questions (15 pts)
• 6 total question parts among 3 free-response questions (85 pts)
• You have 50 minutes to finish
• The topics span the first three homework sets (chapter 2a, 2b, 2c). In the Canvas Exam I module there is a textbook section from Walker (to give a second perspective) and study questions to help you review.





• General relativity
• equivalence principle
• gravity & space
• gravity & time


• experimental evidence
1. Precession of Mercury's orbit
2. Solar eclipse
3. Gravitational lensing
4. Black holes




Source of last two images: European Space Agency

For how much time could you run a 7.0 kilowatt air conditioner using the mass-energy in one pound (0.455 kg) of fuel?
A. 7,000 years
B. 185,000 years
C. 4.55×10⁹ years
D. 9×10¹⁶ years
Answer























 



B. 185,000 years
Multiply the mass in kg by c² = 9.00×10¹⁶ m²/s². Then divide the energy by the power consumption rate (7000 J/s). The energy generated is enough to power 518,000 homes for an entire year!