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Physics Quiz 9 (60 MCQs)

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1. A ..... is an idealised body that is able to absorb all electromagnetic radiation that falls on it ..... is an idealized body that is able to absorb all electromagnetic radiation that falls on it .....
2. In the steps of the scientific method, what is the next step after formulating and objectively testing hypotheses?
3. What kind(s) of objects have inertia?
4. WHO IS ACHARYA KANADA
5. A computer monitor combines the ..... to create any color in the rainbow
6. A motorboat, which has a speed of 5 meters per second in still water, is headed east as it crosses a river flowing south at 3.3 meters per second. What is the magnitude of the boat's resultant velocity with respect to the starting point?
7. What materials would be good insulators for a handle on a pan or pot that would be used on the stove?
8. Branches of physics that studies the production and properties of sound
9. Photoelectrons will be ejected from a material surface if?
10. A converging lens has a focal length of 30 cm. A 5 cm tall candle is placed at a distance of 10 cm in front of the lens. Determine the image distance.
11. Sammy studied kinetic and potential energy by observing apples on a tree during a field investigation. What type of energy do the apples on the tree have?
12. The area of irregular shaped object can be calculated using a
13. Friction is which type of force?
14. Which term describes when light bounces off of a smooth surface?
15. The idea stating that matter is made up of small particles that are in constant motion is
16. ..... Law says that a current produced by an induced emf moves in a direction so that its magnetic field opposes the original change in flux
17. A pendulum takes two seconds to make a complete swing . what could one swing be called
18. Convex lens focus a real, point sized image at focus, the object is placed
19. AN ELECTRIC FUSE IS BASED ON
20. The half-life of Radon-222 is 4 days. If the initial mass of radon is 20g, what is the mass decayed after 12 days?
21. What is internal energy?
22. It is an area of Physics that studies the nature and behavior of light.
23. What does polarizing light do?
24. What is the correct equation for calculating a time?
25. What is the definition of "weight" ?
26. Which Branch of Physics is most important when determining how much voltage is produced by a wind turbine?
27. Transfer of energy through the movement of heat through electromagnetic waves, does not need a medium
28. Which of the following is NOT a characteristic feature of a convex mirror?
29. What is the kinetic energy of a 9 kg book that has a speed of 4 m/s?
30. A bike rider approaches a hill at a speed of 5.5 m/s. The combined mass of the bike and rider is 87kg. Find the initial kinetic energy of the system. The rider coasts up the hill. Ignoring friction, at what height will the bike come to rest?
31. The specific heat capacity of a material is defined as:
32. When all 3 primary light colors are mixed which color is produced?
33. A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?
34. When a spring is compressed, which of these energy stores is energy transferred to?
35. Physics variable for 74 m/s
36. A fishing boat with a maximum speed of 3 m/s relative to the water is in a river that is flowing at 2 m/s. What is the maximum speed the boat can obtain relative to the shore?
37. The heat absorbed by melting a solid is known as
38. Total distance divided by total time
39. In an electron microscope, light source is replaced by the beam of very fast moving .....
40. An object will not have any inertia if it is .....? .....
41. In an experiment, a student measures the volume of a liquid in a measuring cylinder. The student should make sure that her eye is level with the meniscus of the liquid. This will reduce
42. The temperature at which a liquid turns to a gas is called the ..... point.
43. How much work is done by a motor that lifts a train car on El Toro to the top of a 70-meter hill using a force of 15, 000 N?
44. "Newton suggested that objects like the soccer ball have a natural tendency to keep moving. The only reason they stop, he believed, is because an unbalanced force acts." What does tendency mean?
45. It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box?
46. The distance between the Earth and the Sun is around 150, 000, 000 km. Express this value in scientific notation.
47. If a cheetah runs 180 miles in 3 hours, what is its average speed?
48. Which of the following is not a fundamental unit?
49. When an object is in motion, it's ..... must change.
50. The color of light is determined by ..... of the light waves?
51. It is a branch of physics that deals with the behavior of objects and systems in response to various forces.
52. Morgan walks 10 miles South. Trevor walks 10 miles North in the same amount of time. They have:
53. If an object has more mass, then it will
54. The relationship between Work and Power is
55. -If you wanted to measure the distance from here to Dubai City, you would use
56. In a transverse wave, the disturbance is ..... to the direction the wave is traveling.
57. If two objects labelled B and C are both at thermal equilibrium with object A, which of the following must be true?
58. The units of acceleration are .....
59. Power is the .....
60. Which of the following lists includes only vector quantities?
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