Very easy physics test

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Has to be done well. Everything listed bellow are the requirements/the topics that will be covered on the quiz. Please let me know if there are any questions.

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Name _________________________________ I.D. Number _______________________ Unit 5 Evaluation Physics 2 (SCIH 036 058) This evaluation will cover the lessons in this unit. It is open book, meaning you can use your textbook, syllabus, and other course materials. To submit the evaluation, follow the directions provided. When you feel you are adequately prepared, complete this Unit Evaluation. It is important that you do your own work. If you have difficulty with particular sections, you may use your textbook and course materials for help in answering the questions. You may also use your calculator on this evaluation. After you have completed this evaluation, you will submit it for grading. Multiple Choice Choose the answer that best completes the statement or answers the question. ____ 1. What do electric charges have in common with magnetic poles? a. They both attract and repel each other. b. They are both created by the magnetic field of the Earth. c. They do not have anything in common as they are “opposite” concepts. ____ 2. What happens when the north pole of a bar magnet is brought near the north pole of another bar magnet? a. They attract each other. b. They repel each other. c. They do not affect each other. ____ 3. What happens when the north pole of a bar magnet is brought near the south pole of another bar magnet? a. They attract each other. b. They repel each other. c. They do not affect each other. Unit 5 Evaluation SCIH 036 ____ 4. What happens when a compass needle is brought close to a current carrying wire? a. The compass needle does not respond. b. The compass needle is deflected one way or another depending on the direction of the current. c. The compass needle is always deflected to the right (right hand rule). d. The compass needle is always deflected to the left. ____ 5. Describe what happens when you break a bar magnet in half and then break each of the halves in half. a. Each piece is a complete magnet with a north and south pole. b. One piece is completely “north” and the other is completely “south.” c. The act of breaking will always demagnetize the magnet. ____ 6. What is the direction of the magnetic field inside a magnet? a. from the north pole to the south pole b. from the south pole to the north pole c. from the north pole outward in all directions d. from the south pole outward in all directions ____ 7. What is the direction of the magnetic field outside a magnet? a. from the north pole to the south pole b. from the south pole to the north pole c. from the north pole outward in all directions d. from the south pole outward in all directions ____ 8. What is the difference between an ordinary piece of iron and a magnetized piece of iron? a. The ordinary piece of iron has non-magnetic domains. b. The magnetized piece of iron has aligned magnetic domains. c. The ordinary piece of iron has clusters of aligned atoms. d. The magnetized piece of iron has clusters of random atoms. Unit 5 Evaluation SCIH 036 ____ 9. How much force is exerted by a magnetic field on a charged particle at rest in the field? a. maximum b. less than maximum c. zero ____ 10. How much force is exerted by a magnetic field on a charged particle moving in a direction perpendicular to the field lines? a. maximum b. less than maximum c. zero ____ 11. How much force is exerted by a magnetic field on a particle moving in a direction parallel to the magnetic field lines? a. maximum b. less than maximum c. zero ____ 12. How much force is exerted by a magnetic field on a particle moving in a direction neither perpendicular nor parallel to the magnetic field lines? a. maximum b. less than maximum c. zero ____ 13. Scientific discoveries are often made by two independent people or groups at the same time. Which two scientists both discovered the link between electricity and magnetism in 1831? a. Einstein and Faraday b. Faraday and Henry c. Henry and Newton d. Maxwell and Newton Unit 5 Evaluation SCIH 036 Use this diagram to answer questions 14-16. ____ 14. How much voltage is produced in the middle coil when the magnet is pushed in? a. twice as much as in the first coil b. half as much as in the first coil c. three times as much as in the first coil d. the same amount as in the first coil ____ 15. How much voltage is produced in the third coil when the magnet is pushed in? a. twice as much as in the first coil b. half as much as in the first coil c. three times as much as in the first coil d. the same amount as in the first coil ____ 16. How much voltage is produced in the first coil when the magnet is pushed in and out twice as fast? a. twice as much as when the magnet is moved at regular speed b. half as much as when the magnet is moved at regular speed c. three as much as when the magnet is moved at regular speed d. the same amount as when the magnet is moved at regular speed Unit 5 Evaluation SCIH 036 ____ 17. According to Faraday’s law, what can you change in order to increase the induced voltage in a coil? a. number of loops b. cross-sectional area of each loop c. rate at which magnetic field changes d. all of the above ____ 18. A generator takes ___________________ and turns it into ______________________. a. electrical energy, mechanical energy b. work, power c. mechanical energy, electrical energy d. power, work ____ 19. A motor takes ___________________ and turns it into ________________________. a. electrical energy, mechanical energy b. work, power c. mechanical energy, electrical energy d. power, work ____ 20. Electricity is a source of energy. a. true b. false ____ 21. What is another name for the generator effect? a. conservation of charge b. Coulomb’s law c. conservation of energy d. law of induction Unit 5 Evaluation SCIH 036 To answer questions 22-23 consider the following diagram. The primary coil is connected to a battery and the secondary coil is connected to a galvanometer. ____ 22. What happens at the moment the switch is closed in the primary circuit? a. A current flows in the primary circuit. b. A current flows in the secondary circuit. c. A magnetic field exists around the primary circuit. d. All of the above occur. ____ 23. If the switch remains closed in the primary circuit, which of the following will occur? a. A current flows in the primary circuit. b. Current stops flowing in the secondary circuit. c. A magnetic field exists around the primary circuit. d. All of the above occur. ____ 24. A step up transformer has a. more turns in the secondary coil than in the primary coil. b. more turns in the primary coil than in the secondary coil. c. the same number of turns in both coils. ____ 25. If a primary coil with 6 turns feeds 3 volts to a secondary coil with 180 turns, what is the output voltage? a. 90 volts b. 9 volts c. 360 volts d. 3.6 volts Unit 5 Evaluation SCIH 036 ____ 26. At what voltage is power typically carried from power plants to cities in North America? a. 12 volts b. 60 volts c. 120 volts d. 120,000 volts ____ 27. At what voltage is power typically delivered to homes in North America? a. 12 volts b. 60 volts c. 120 volts d. 120,000 volts ____ 28. Why is power transferred long distances at very high voltage? a. Using high voltage means we get more power to our homes. b. High voltages are required to get the currents we need for a typical home. c. High voltage wires are less dangerous than low voltage wires. d. High voltage wires allow us to reduce the current, which means less resistance and heat. ____ 29. What are electromagnetic waves made of? a. oscillating electric fields b. oscillating magnetic fields c. oscillating electric and magnetic fields that are constantly generated by a separate source d. oscillating electric and magnetic fields that are constantly regenerating each other ____ 30. According to the article on page 756 of your textbook, is ELF radiation dangerous? a. definitely, according to the latest scientific data b. maybe, the latest scientific data is pretty evenly divided c. probably not, according to the latest scientific data ____ 31. What is the source of all electromagnetic waves? a. electric wires spun in magnetic fields. b. accelerating electric charges. c. an electric field. Unit 5 Evaluation SCIH 036 ____ 32. A galvanometer that has been calibrated to measure electric potential is called a a. ammeter. b. voltmeter. c. electric meter. d. magnetometer. ____ 33. A compass points north because a. the Earth is a huge magnet. b. the compass aligns with the geographic poles of Earth. c. all compasses are designed to measure true north. ____ 34. Metal detectors in airports work by all of the following EXCEPT a. sensing a change in the magnetic field. b. using a small electric current. c. detecting iron that is carried through the coil. d. shooting electron beams through your body. ____ 35. Which of the following is NOT true of electromagnetic waves. a. No medium is required to produce the waves. b. The waves move outward in all directions from the vibrating charge that created them. c. The electric field is parallel to the magnetic field in the waves. d. Both electric and magnetic fields are perpendicular to the direction of motion of the wave. Carefully check your answers on this evaluation and make any corrections you feel are necessary. When you are satisfied that you have answered the questions to the best of your ability, transfer your answers to an answer sheet. Please refer to the information sheet that came with your course materials. Unit 5 Evaluation SCIH 036
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