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Physics Final Exam Review

Test your knowledge of projectiles, energy, sound, and electromagnetic spectrum in this comprehensive final exam review. Explore topics such as velocity, kinetic energy, sound waves, and more to ace your physics exam!

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Physics Final Exam Review

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  1. Jeopardy 0515FinalExam4jeopardyRvw Projectiles Energy Sound EM Spect Mixed $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 Final Jeopardy

  2. When a projectile is shot upward, the vertical velocity is always 9.8 m/s2. a. true b. false c. never B. false, when thrown up: at the top its velocity is zero. 1 - $100

  3. 1 - $200 • A ball is thrown into the air at some angle. At the very top of the ball’s path, its velocity is a. all horizontal b. all vertical c. both x & y • a. all horizontal, the vertical gravity is a zero changing from -9.8 to + 9.8

  4. 1 - $300 • A ball is thrown straight upward at 20 m/s. If no air resistance, the ball will return to the thrower’s hand at what speed? • 20 m/s, same up and same down

  5. 1 - $400 • A package is dropped from a plane traveling horizontally at 200 m/s. It falls into the water 4 seconds later. How far will it travel horizontally? • 800 m, 200 m each second for 4 seconds.

  6. 1 - $500 • A package is dropped from a plane traveling horizontally at 200 m/s. It falls into the water 4 seconds later. How high was the plane? • dy = ½ g t2 : 78.4 m = 0.5(9.8)(4)2

  7. 2 - $100 • Which type of energy is “energy in motion”? • Kinetic energy

  8. 2 - $200 • If you decrease the velocity of an object by one half, how does that change its kinetic energy? • ¼th , velocity is a square relationship (1/2)2

  9. 2 - $300 • What is the formula for kinetic energy? • KE = ½ m v2

  10. 2 - $400 • What is the formula for Gravitational Potential Energy? • GPE = m g h

  11. 2 - $500 • When given a force, what formula is used for GPE? GPE = F x h

  12. 3 - $100 • Sound travels in which type of wave? • a. transverse b. longitudinal c. surface • Longitudinal, compressions of air transfer

  13. 3 - $200 • Which state of matter makes a medium in which sound travels the fastest? • Solid, • molecules closer and directly influence each other

  14. 3 - $300 • The Doppler Effect is a change in picth due to the listener or the source or both moving toward or away from each other. The human perception of pitch is in reference to the ______ of a wave. • Frequency

  15. 3 - $400 • What is the normal hearing range for humans? • 20 – 20 000 vibrations per second

  16. 3 - $500 • What unit is used to measure sound intensity? • Decibels, measures the ‘loudness’, --- bells, loud

  17. 4 - $100 • Electromagnetic waves of light are which type of wave? • a. transverse b. longitudinal c. surface • Transverse, • traveling perpendicular to wave direction

  18. 4 - $200 • Picking from the main 7 bands of the Electromagnetic spectrum, which band has the longest wavelength? • Radio waves

  19. 4 - $300 • What is the pneumonic device used to remember the colors of the rainbow? • R O Y G B I V

  20. 4 - $400 • Which of the seven bands of the visible light spectrum is the most frequent? • violet

  21. 4 - $500 • What is the speed of light? • 300 000 km / sec.

  22. 5 - $100 • When two objects collide and they bounce away from each other, the collision is classified as elastic inelastic unsticky • Elastic, bounce or return to original shape

  23. 5 - $200 • At what vertical angle will a projectile achieve maximum horizontal distance? • 45o, 45 up and 45 down.

  24. 5 - $300 • How much of a sample remains after 2 half lives? • 1/4 th the original

  25. 5 - $400 • What is the term for a measurement of frequency per second for waves? • Hertz = Hz

  26. 5 - $500 • What is the name of the longitudinal wave part that corresponds to the transverse trough? • Rarefaction, the spaced out portion

  27. Final Jeopardy • A car traveled 50 km in 2 hours, 40 km in the next hour, then 60 km in 2 hours. What is the cars average speed? • 30 km/hr; 150km/5 hrs

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