U = Ad Mechanics a s Physics 2nd Semester Final Exam Review Your final exam will consist of 36 multiple choice questions and 4 free response questions. Below are some question, statement, and problem items to refresh your memory of topics we have covered. Electricity 1. What do all waves have in common? A = a F = fo 2. List the EM waves from shortest to longest wavelength (highest to lowest frequency). 1 = cur 3. Define frequency and its relationship to period, wavelength, and speed of a wave. L= leng 4. Also describe the crest, trough, and amplitude of a wave. P = pow 5. Describe the 3 types of mechanical waves and give an example of each. q = charg . Why is a medium required for sound to travel? What type of wave does sound travel as? R = resist Compare and contrast EM waves to Mechanical waves in terms of speed, medium, and energy. r = separ t = time Under what condition is light diffracted? What is the result of light traveling through 2 adjacent slits ' = electric (see Fig. 4 on P. 527) : resistivity What conditions are necessary for refraction to occur? How does light bend when entering different medium 10. How does a beat occur with two waves of similar frequencies 1 1. What is the relationship between natural frequency and resonance? 12. What are the different ways to calculate the different forms of Mechanical Energy and solve problems involving the conservation of energy and work done in pushing/lifting/lowering an object. 13. Explain the relationships between Potential energy, Kinetic energy and Work. 14. If a tennis ball was dropped 10 m in a vacuum, how fast would it be going at the end of the fall? How would this answer be different if it fell through the air? 15. If Mechanical Energy is not conserved, what are the possible outcomes so that energy as a whole is conserved. 16. Explain the Ist Law of Thermodynamics to calculate changes in internal energy. Know the involved quantities' definitions and symbols. They are all forms of energy so the units are always Joules. 17. What is the relationship between heat and temperature? 18. Define the Work Energy Theorem 19. What is the definition and SI unit for power? 20. Explain the different ways heat can be transferred. 21. How do objects become charged? What determines whether or not two charges will attract each other or repel each other? 22. What is meant by the term electric field and how is it drawn to show effects on other charges? 23. What are the units for and relationship between the quantities voltage, resistance, and current (Ohm's Law ) ? 24. What are the characteristics of series circuits? 25. How does a parallel circuit differ from a series circuit? 26. What does the brightness of a light bulb depend upon? 27. How can Ohm's law be used to calculate the different ways Power in a resistor can be measured