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Physics Quiz 16 (60 MCQs)

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1. Mr. Hardens class decides to perform an experiment to determine how long it takes different objects to hit the floor when dropped from a desk. The class dropped 3 balls from a desk, one weighing 2 lbs, one weighing 4 lbs and 6 lbs. It took them all the same amount of time to hit the floor. After evaluation these results, you predict that a 10 lb ball will take
2. Average speed is calculated .....
3. A baker makes a loaf of bread. Identify the area of physics that this involves
4. Which value and symbol are incorrectly paired?
5. Pressure is equal to
6. Bungee jumping is a sport that involves a lot of motion. What major area of Physics study motion?
7. Suppose you are conducting an experiment concerning gravities effects on falling objects, and you want to minimize air resistance. Which of these would be the most useful and practical way to do these?
8. The weight of an object on an inclined plane is ..... to the normal force
9. What is the formula for converting Celsius to Kelvin?
10. Motion can be described as .....
11. The SI unit of frequency is the .....
12. A girl is pedaling her bicycle at a speed of 0.10 km/min. How far will she travel in two hours? (pay attention to units)
13. Which of the following are used as reflectors in street lights to spread the light over a wide area?
14. These are the category of hadrons that contain three quarks. This distinguishes them from mesons, which contain two (1 quark and 1 antiquark).
15. It is a branch of Physics that studies structures, properties, and behavior of atom.
16. An excited state of an atom has an energy level of 2.5 eV. The ground state of this atom is at 1.1 eV. Which is the maximum energy of a photon emitted then an electron moves from the excited state to the ground state?
17. Units of acceleration (a)
18. A graph of two variables that are directly proportional can be fully described as..
19. What is the name of a system in which there is no net change in the total energy?
20. Electrical charge is calculated using .....
21. A lead fishing sinker with a mass of 75.0 g and a temperature of 25$^ \circ$C is placed on a block of ice at 0$^ \circ$C, which then melts. If 75.0 g of water at the same temperature were poured on the ice, which of the following is true?
22. The symbol for specific heat is .....
23. Which of the following requires the most power (assuming all are lifted to the same height)?
24. SI unit for mass
25. Focal length of plane mirror is
26. A 3, 000 kg truck moving at 10 m/s to the right hits a 1, 000 kg parked car (zero initial speed). The parked car moves off at 15 m/s, to the right. What is the velocity of the truck?
27. Si unit for density
28. They are the exchange particles for the weak nuclear force:
29. Definition of power
30. Once in motion, what does an object like soccer ball have a natural tendency to do?
31. WHAT IS f IF YOU HAVE AN OBJECT 2 M FROM THE CONCAVE MIRROR AND THE IMAGE IS 4 M FROM THE MIRROR.
32. The pressure of a gas will increase as the volume decreases provided the temperature does not change
33. Find the angle of refraction for a ray of light that enters water (n=1.33) from glass (n=1.5) at an angle of 25 degrees to the normal.
34. SI unit for energy
35. A transverse wave and a longitudinal wave can only be differentiated by
36. We take repeat reading to make sure the values are:
37. Hour= ..... minute
38. The source of energy from the sun is due to
39. Rubbing your hands together is a simple example of .....
40. The speed and the direction of an object's motion is it's .....
41. Area of physics that studies the production and properties of sound.
42. A child walks 5 meters north, then 4 meters east, and finally 2 meters south. What is the magnitude of the resultant displacement of the child after the entire walk?
43. A particle is said to have wave-particle duality when that particle exhibits the properties of both ..... and ..... And .....
44. It is a branch of physics that studies the earth and its atmosphere and waters by means of the principles of physics.
45. How would you write 0.0005 in scientific notation?
46. Which of the following methods could be used to demagnetise a permanent magnet?
47. The arrangement of letters on this page and the black dots of ink that comprise them convey
48. When we stand on a floor tile in bare feet, then on a piece of carpet in the same room, the floor tile feels much colder than the carpet. This happens because of the difference in:
49. A pendulum oscillating near the surface of the Earth swings with a time period T. What is the time period of the same pendulum near the surface of the planet Mercury where the gravitational field strength is 0.4g?
50. Which of the following statements about thermodynamics is correct?
51. While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s in the same direction as before, what is the 8 ball's velocity?
52. Calculate the work needed to raise a 3 kg cat up to a height of 4 m.
53. A flat sheet of glass that has a smooth, silver-colored coating on one side
54. When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?
55. What letter do we use to represent mass?
56. A train accelerates from 1.59 m/s to a speed of 6.39 m/s over 1.57 s. The rate of acceleration during this time is
57. Find the average of 11, 5, 2
58. Which of the following represents a system?
59. A measurement of the amount of matter in an object.
60. When you want to measure the thickness of a small block of metal accurately in cm, you would use .....?
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