01. When an object’s distance from another object is changing, it is in ___.
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Transcript of 01. When an object’s distance from another object is changing, it is in ___.
![Page 1: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/1.jpg)
01. When an object’s distance from another object is changing, it is in ___.
![Page 2: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/2.jpg)
MOTION
![Page 3: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/3.jpg)
02. As Earth orbits the sun, it is moving about ___ kilometers per ___.
![Page 4: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/4.jpg)
30; SECOND
![Page 5: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/5.jpg)
03. A place or object used for comparison to determine if something is in motion is called a(n) ___.
![Page 6: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/6.jpg)
REFERENCE POINT
![Page 7: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/7.jpg)
04. Liters, meters, and grams are all ___.
![Page 8: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/8.jpg)
SI UNITS OF MEASUREMEN
T
![Page 9: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/9.jpg)
05. The basic SI unit of length is the ___.
![Page 10: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/10.jpg)
METER
![Page 11: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/11.jpg)
06. The International System of Units is used ___ over the world.
![Page 12: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/12.jpg)
ALL
![Page 13: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/13.jpg)
07. If you know the distance an object has traveled in a certain amount of time, you can determine the ___ of the object.
![Page 14: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/14.jpg)
SPEED
![Page 15: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/15.jpg)
08. Speed equals distance divided by ___.
![Page 16: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/16.jpg)
TIME
![Page 17: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/17.jpg)
09. If the speed of an object does NOT change, the object is traveling at a(n) ___ speed.
![Page 18: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/18.jpg)
CONSTANT
![Page 19: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/19.jpg)
10. If a bicyclist travels 30 kilometers in two hours, her average speed is ___.
![Page 20: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/20.jpg)
15 KMH
![Page 21: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/21.jpg)
11. If an object moves in the same ___ and at a constant speed for 4 hours, the object’s velocity did not change.
![Page 22: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/22.jpg)
DIRECTION
![Page 23: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/23.jpg)
12. If you know a car traveled 300 kilometers in 3 hours, you can find its ___ speed.
![Page 24: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/24.jpg)
AVERAGE
![Page 25: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/25.jpg)
13. A train that travels 100 kilometers in 4 hours is traveling at what average speed?
![Page 26: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/26.jpg)
25 KMH
![Page 27: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/27.jpg)
14. When you know both the speed and the direction of an object’s motion, you know the ___ of the object.
![Page 28: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/28.jpg)
VELOCITY
![Page 29: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/29.jpg)
15. You can show the motion of an object on a line graph in which you plot distance against ___.
![Page 30: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/30.jpg)
TIME
![Page 31: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/31.jpg)
16. In graphing motion, the ___ of the slope depends on how quickly or slowly the object is moving.
![Page 32: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/32.jpg)
STEEPNESS
![Page 33: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/33.jpg)
17. On a graph showing distance versus time, a ___ line represents an object that is not moving at all.
![Page 34: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/34.jpg)
HORIZONTAL
![Page 35: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/35.jpg)
18. The upper layer of Earth consists of more than a dozen major pieces called ___.
![Page 36: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/36.jpg)
PLATES
![Page 37: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/37.jpg)
19. According to the theory of plate ___, Earth’s plates move ever so slowly.
![Page 38: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/38.jpg)
TECTONICS
![Page 39: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/39.jpg)
20. Scientists believe that Earth’s continents were connected as recently as ___ million years ago.
![Page 40: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/40.jpg)
250
![Page 41: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/41.jpg)
21. If one of Earth’s plates moves 5 centimeters every year, how many meters will it move in 500 years?
![Page 42: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/42.jpg)
25 METERS
![Page 43: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/43.jpg)
22. In a conversion factor, the denominator and numerator are ___.
![Page 44: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/44.jpg)
EQUAL
![Page 45: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/45.jpg)
23. It is rare for any motion to stay the ___ for very long.
![Page 46: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/46.jpg)
SAME
![Page 47: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/47.jpg)
24. The rate at which velocity changes is called ___.
![Page 48: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/48.jpg)
ACCELERATION
![Page 49: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/49.jpg)
25. Changing direction is an example of a kind of ___.
![Page 50: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/50.jpg)
ACCELERATION
![Page 51: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/51.jpg)
26. A car slowing down as it approaches a red light is an example of ___.
![Page 52: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/52.jpg)
DECELERATION OR
NEGATIVE ACCELERATIO
N
![Page 53: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/53.jpg)
27. The moon accelerates because it is continuously changing ___.
![Page 54: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/54.jpg)
DIRECTION
![Page 55: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/55.jpg)
28. To determine the acceleration rate of an object, you must calculate the change in velocity during each unit of ___.
![Page 56: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/56.jpg)
TIME
![Page 57: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/57.jpg)
29. If velocity is measured in kilometers per hour and time is measured in hours, the unit of acceleration is kilometers per ___.
![Page 58: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/58.jpg)
HOUR PER HOUR
![Page 59: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/59.jpg)
30. In an acceleration graph showing speed versus time, a ___ line shows the acceleration is constant.
![Page 60: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/60.jpg)
STRAIGHT
![Page 61: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/61.jpg)
31. A reference point is assumed to be ___, or not moving.
![Page 62: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/62.jpg)
STATIONARY
![Page 63: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/63.jpg)
32. A change in an object’s position relative to a reference point is called ___.
![Page 64: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/64.jpg)
MOTION
![Page 65: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/65.jpg)
33. When riding a bicycle past a building, you are not moving relative to the ___.
![Page 66: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/66.jpg)
BICYCLE
![Page 67: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/67.jpg)
34. Suppose you are sitting in a car at a red light when a car moving toward the north begins to pass you. If you use the passing car as a reference point, the direction in which you appear to be moving is toward the ___.
![Page 68: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/68.jpg)
SOUTH
![Page 69: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/69.jpg)
35. The distance traveled by a moving object per unit of time is called ___.
![Page 70: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/70.jpg)
SPEED
![Page 71: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/71.jpg)
36. The basic SI unit of length is ___.
![Page 72: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/72.jpg)
METER
![Page 73: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/73.jpg)
37. Speed that does not change is referred to as ___ speed.
![Page 74: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/74.jpg)
CONSTANT
![Page 75: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/75.jpg)
38. The statement that the motion of a hurricane is 20 kilometers per hour in an easterly direction is a description of the hurricane’s ___.
![Page 76: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/76.jpg)
VELOCITY
![Page 77: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/77.jpg)
39. A speed of 15 kilometers per hour is abbreviated as 15 ___.
![Page 78: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/78.jpg)
KMH
![Page 79: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/79.jpg)
40. If two lines appear on the same motion graph, the line with the steeper ___ indicates as greater speed.
![Page 80: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/80.jpg)
SLOPE
![Page 81: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/81.jpg)
41. According to the theory of plate ____, Earth’s plates move very slowly in various directions.
![Page 82: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/82.jpg)
TECTONICS
![Page 83: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/83.jpg)
42. The boundaries between the plates that make up the upper layer of the Earth are cracks in the Earths ___.
![Page 84: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/84.jpg)
CRUST
![Page 85: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/85.jpg)
43. Acceleration is the rate of change in ___.
![Page 86: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/86.jpg)
VELOCITY
![Page 87: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/87.jpg)
44. ___ occurs when an object slows down.
![Page 88: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/88.jpg)
DECELERATION OR NEGATIVE
ACCELERATION
![Page 89: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/89.jpg)
45. A golf ball ___ when either its speed or its direction changes.
![Page 90: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/90.jpg)
ACCELERATES
![Page 91: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/91.jpg)
46. The motion of a car stopping at a traffic light is an example of ___ acceleration, also called deceleration.
![Page 92: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/92.jpg)
NEGATIVE
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47. The abbreviation of the unit of acceleration (meters/second/second) is___.
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m/s/s or m/s2
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48. If a ship has an acceleration of 3 kilometers per hour per hour, its speed is expressed in the unit of ___.
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km/h
![Page 97: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/97.jpg)
49. If a car is speeding up, its initial speed is ___ than its final speed.
![Page 98: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/98.jpg)
less
![Page 99: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/99.jpg)
50. If a train is traveling north at 30 m/s brakes to a stop in 1 minute, its acceleration is ___ southward.
![Page 100: 01. When an object’s distance from another object is changing, it is in ___.](https://reader036.fdocuments.us/reader036/viewer/2022062303/551b07e7550346cf5a8b4b4b/html5/thumbnails/100.jpg)
-0.5 m/s/s