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Physics Quiz 6 (60 MCQs)

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1. A moving car has kinetic energy. If the car moves faster, it will have ..... kinetic energy.
2. Your neighbor is riding her bike around the block. When she slows down and turns a corner, what changes about her?
3. Energy is lost during this type of collision
4. If a student uses 10 Newtons of Force to push a chair 5 meters, how much is work is being done?
5. An object placed 3 m from a plane mirror is shifted by 0.4 m away from the mirror. What is the new distance between the object and its image?
6. ..... is the rubbing force that acts against motion between two touching surfaces.
7. A rollercoaster travels at a speed of 32.0 m/s. Convert the rollercoaster's speed into km/h.
8. If the wavelength of a wave increases, the period will .....
9. Coal is sometimes burnt in order to drive steam engines. Which of the following is the sequence of energy changes involved in the activity?
10. What is the SI Unit for Density?
11. The units used to measure heat energy (Q) are
12. While Abdul is nervous about his practice exam, he walks around the classroom:26 m [S], then 6 m [N] to deal with his stress. If Abdul paces for a total of 9.0 s, his average velocity is
13. Important physics concepts include a. motion. b. forces. c. energy. d. all of the above
14. Which statement is true of a positively charged object?
15. Matter that has a definite volume but no definite shape is a
16. Solve and round accordingly. "800.0 + 62.050-700"
17. Which quantity is a vector quantity?
18. Power of the lens is-40, its focal length is
19. What is the function of a diode?
20. A plane traveling north at 150 m/s is flying toward a runway. A cross-wind of 30 m/s begins to blow from the east. The pilot realizes he is being blown off course. At what angle must he head in order to travel directly north?
21. Which energy is being described? Masses that have work done on them to lift them up in a gravitational field
22. The unit of power of lens is
23. Why does light refract?
24. Physics is concerned with which of the following matters?
25. It is the exchange particle for the electromagnetic force:
26. The mass defect in a nuclear reactions is 2 x 1020 kg. What is the energy released in Joule?
27. The volume of a liquid is usually measured in
28. Identify at least two areas of physics involved in the following:Building a louder stereo system in your car
29. You walk 10 meters to math class in 20 seconds. Your average speed is
30. ..... is the rate at which work is done, or energy is transferred
31. Calculate the following, and express the answer in scientific notation with the correct number of significant figures:21.4+15+17.17+4.003
32. The amount of energy required to raise the temperature 1$^ \circ$C for every kilogram is called .....?
33. Terminal velocity is:
34. A CONVERGENT LENS OF POWER 8D IS COMBINED WITH A DIVERGENT LENS OF POWER-10D . CALCULATE THE FOCAL LENGTH OF THE COMBINATION .
35. Calculate the amount of heat added to 15 kg gold to change phase from solid to liquid. (The heat of fusion for gold is 64500 J/kg)
36. A skateboarder with a mass of 75.0 kg at the top of a 4.50 m ramp will have how much kinetic energy at the moment before they reach the bottom of the ramp? (g=9.81m/s2)
37. Physics variable for 56 J
38. If FM is being transmitted at the frequency of 113.5 Mega Hertz. What is the frequency of the radio waves in Hz?
39. What does a change in amplitude in a mechanical wave also change/create?
40. The photoelectric effect only occurs if the light shining on the metal is:
41. G of water. specific heat of water is 4.18 J/g$^ \circ$C . temperature changes from 25$^ \circ$ C to 20$^ \circ$ C, how much heat energy (Q) moves from the water to the surroundings?
42. Which one of these is in scientific notation?
43. The number of times a wave passes a given point in a certain amount of time.
44. WHEN A 40V BATTERY IS CONNECTED ACROSS AN UNKNOWN RESISTOR THERE IS A CURRENT OF 100mA IN THE CIRCUIT . FIND THE VALUE OF THE RESISTANCE OF THE RESISTOR:
45. Which of the following quantities is considered a vector?
46. Which energy transformation below matches? A book falling?
47. Which Branch of Physics is most important when studying the results of a car crash?
48. What two dimensions, in addition to mass, are commonly used by physicists to derive additional measurements?
49. Equation for pressure
50. Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.Which of the following changes occur?
51. What is the specific latent heat of fusion?
52. Accelerations are produced by
53. According to Newton's second law of motion, what is the relationship between acceleration and mass? Acceleration:
54. Which SI base unit would you use to measure your height?
55. Equation for gravitational potential energy
56. The symbol for specific latent heat is
57. When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:
58. If a man's face is 25 cm in front of concave shaving mirror producing erect image 1.5 times the size of face, focal length of the mirror would be
59. Image formed by plane mirror is
60. Metals are good thermal conductors because:
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