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26. Which of the following is true about an object that travels 10 m to the left, then 2 m up, then another 5 m to the right?
A. The displacement is 0.
B. The total distance travelled is equal to 17 m.
C. The displacement of the object is equal to 17 m.
D. The total distance travelled is equal to 17 m to the left.
27. In which of the following situations is the object accelerating?
I. A truck changing direction
II. A car speeding up in a highway,
III. A moving motorcycle comes to a stop.
IV. A rolling ball moving with uniform speed.
A. I and II
B. I, II, II
C. I, II, IV
D. I, III, IV
28. How do mechanical waves transport energy from one place to another?
A through vibrating and traveling particles
B. through particles travelling with the wave
C. through alternately vibrating particles of the medium
D. none of the above
29. What will happen as the frequency of a wave increases and the speed remains constant?
A. The wavelength increases.
C. The amplitude increases.
B. The wavelength decreases.
D. The wave period increases.
30. ROYGBIV is the basic component of white light. Among the colors below, which color of light carries the highest energy?
A blue
B. green
C. orange
D. red
31. Which of the following groups of waves are listed correctly in order of increasing
frequencies?
A. Visible light, gamma rays, X-rays
C. radio waves, visible light, X-rays
B. X-rays, visible light, radio waves
D. infrared rays, visible light, radio waves
32. In what phase of matter does heat transfer by convection occur?
A. only in gases
C. only in gases and liquids
B. only in liquids
D. in gases, liquids and solids
33. When you touch a piece of ice with your finger, where does energy flow?
A both ways
C. from the ice to the finger
B. energy does not flow
D. from the finger to the ice
For items 34 and 35, refer to the situation:
Containers A, B, C and D contained water of different amounts and were exposed to the same quantity of heat. Cont. A-, cup B - 72, cup C - %, cup D - 1 cup
34. Which of the containers has the greatest temperature reading?
A. Cup A
B. Cup B
C. Cup C
D. Cup D
35. How will you compare the temperature reading in A to that in C?
A. Container A has the same temperature as C.
B. Container A has greater temperature than C.
C. Container A has a temperature three times less than C.
D. Container A has a temperature three times greater than C.
36. What will happen when two like charges are brought together?
A repel each other
C. neutralize each other
B. attract each other
D. no effect
37. What happens to two uncharged objects?
A. repel each other
C. neutralize each other
B. attract each other
D. no effect
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Answer:
26.b 27.d 28.c29a 30.b 31.d 32c 33.a 34c35 b 36 c 37a
Explanation:
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