1. What are some ways to describe motion? Notes Position and Motion
Chapter Introduction

2. Mini Lab: Reference Point
Supplies: meterstick, sticky note, domino, 3x5 card reference direction card
Directions: ( The reference direction is towards the 100cm (1.0 m) mark..
Place the sticky note at the 50 cm mark (0.5m). The sticky note is the reference point.
Place the 3x5 card pointing towards the 100 cm mark. (1.0m) This is the reference direction.
Place the domino at the 40 cm mark-this is a position because it is a distance from a reference point. (0.4 m)
Complete the chart move the domino to the positions indicated and tell the distance and reference direction. The first one is done for you.

3. Describing Position
A complete description of your position includes a distance, a direction, and a reference point.
Lesson 1-1

4. Describing Position #2
Describe the picnic tables position using 2 different ways. Be sure to include a reference point, distance and direction.
STATUE
WATER FOUNTAIN
Lesson 1-1

5. Describing Position DEMO
3.The reference direction (EAST)
4.Moving toward the reference direction is positive.
5.Moving away from the reference direction is negative or in this case going WEST.
Lesson 1-1

6. #6 What term refers to a starting point that can be used to locate a place or thing?
A. displacement
B. position
C. reference direction
D. reference point
Chapter Review – MC1

7. The process of changing position.
7. MOTION IS…
The process of changing position.
What does automotive mean?
motion
from Latin motere, means “to move”
auto
From the Greek autos means “self”
Lesson 1-3

8. Describing Position in Two Dimensions
8.When you describe a position using two directions, you are using two dimensions. To find a position in two dimensions you must choose a reference point, specify reference directions, and then determine the distance along each reference direction.
Lesson 1-2

9. Answer “is” or “is not” (DEMO)
9. The man in the boat _________in motion compared to his fishing pole.
He ______ in motion compared to the buoy.
Lesson 1-3

10. 10. Discuss and write What do your think Displacement means?
What does Distance means
Lesson 1-3

11. Describing Changes in Position
Displacement is the difference between the initial (first) position and the final position of an object.
Distance means the length of the path taken.
Lesson 1-3

12. Describing Changes in Position
Go to the baseball diamond in the hall.
11. Go from home to 1st base- record the distance in meters.
12. Now are you in a different place than you started?
True or False
Lesson 1-3

13. #10 Describing Changes in Position
Go from 1st base to 2nd base- record the distance from 1st to 2nd in meters .
Measure the DISPLACEMENT-the place you started Home directly to 2nd base (displacement line) ____
Is the distance and the displacement the same?
Lesson 1-3

14. #11 Describing Changes in Position
what is the distance in meters?
What is the displacement in meters?
what is the distance in meters?
What is the displacement in meters?
Lesson 1-3

15. #11 Describing Changes in Position
Converting
what is the distance? What is the displacement?
Lesson 1-3

16. #11 Describing Changes in Position
Lesson 1-3

17. The distance an object moves and the object’s displacement are not always the same.
Lesson 1 - VS

18. #Distance and displacement are equal only if the motion is in how many directions?
A. three
B. one
C. two
D. none of these
Chapter Review – MC2

19. Displacement vs Distance Video: Need a phone.

20. When you describe a position using two directions, how many dimensions are you using?
A. one
B. two
C. three
D. none of the above
Lesson 1 – LR1

21. Which of these refers to the difference between the initial position and the final position of an object?
A. motion
B. reference point
C. displacement
D. direction
Lesson 1 – LR2

22. A. the positive direction B. the negative direction C. both of these
When describing an object’s position, the reference direction is which of these?
A. the positive direction
B. the negative direction
C. both of these
D. none of these
Lesson 1 – LR3

23. END

24. What is the distance in meters? What is the displacement in meters
When a player makes a homerun. They start at home, run to bases 1,2 and 3 in order then back to home.
What is the distance in meters?
What is the displacement in meters
Lesson 1-3

25. Lesson 1-3

26. Describing Position in Two Dimensions (cont.)
How can you describe the position of an object in two dimensions?
Lesson 1-2

27. 1. Displacement is the distance an object moves along a path.
Do you agree or disagree?
1. Displacement is the distance an object moves along a path.
2. The description of an object’s position depends on the reference point.
Lesson 1 - Now

28. Lesson 2 Reading Guide - KC
Speed and Velocity
What is speed?
How can you use a distance-time graph to calculate average speed?
What are ways velocity can change?
Lesson 2 Reading Guide - KC

29. Lesson 2 Reading Guide - Vocab
Speed and Velocity
speed
constant speed
instantaneous speed
average speed
velocity
Lesson 2 Reading Guide - Vocab

30. What is speed?
Speed is a measure of the distance an object travels in a unit of time.
What is speed?
Lesson 2-1

31. What is speed? (cont.)
You can calculate speed by dividing the distance traveled by the time it takes to go that distance.
Lesson 2-1

32. What is speed? (cont.)
Constant speed is the rate of change of position in which the same distance is traveled each second.
Lesson 2-1

33. What is speed? (cont.)
When the car’s speed changes, it moves a different distance each period of time.
Lesson 2-1

34. What is speed? (cont.)
Instantaneous speed is speed at a specific instant in time.
Average speed is the total distance traveled divided by the total time taken to travel that distance.
Lesson 2-1

35. Distance-Time Graphs
Graphs that show comparisons between distance and time are called distance-time graphs.
Constant speed is shown as a straight line on a distance-time graph.
Lesson 2-2

36. Distance-Time Graphs (cont.)
You can use distance-time graphs to compare the motion of two different objects.
The steeper line indicates a faster speed.
Lesson 2-2

37. You can use distance-time graphs to calculate the average speed of an object.
Lesson 2-2

38. Distance-Time Graphs (cont.)
How can you use a distance-time graph to calculate average speed?
Lesson 2-2

39. Distance-Time Graphs (cont.)
If the speed of an object changes instead of being constant, its motion on a distance-time graph is a curved line.
Lesson 2-2

40. Velocity Velocity is the speed and the direction of a moving object.
from Latin velocitas, means “swiftness, speed”
Lesson 2-3

41. Velocity (cont.)
The velocity of an object can be represented by an arrow.
A greater speed is shown by a longer arrow.
The arrow points in the direction of the object’s movement.
Lesson 2-3

42. Velocity (cont.)
Velocity changes when the speed of an object changes, when the direction that the object moves changes, or when both the speed and the direction change.
Lesson 2-3

43. Velocity (cont.)
How can velocity change?
Lesson 2-3

44. A distance-time graph shows the speed of an object.
Speed is a measure of the distance an object travels in a unit of time. You can describe an object’s constant speed, instantaneous speed, or average speed.
A distance-time graph shows the speed of an object.
Lesson 2 - VS

45. Velocity includes both the speed and the direction of motion.
Lesson 2 - VS

46. The total distance traveled divided by the total time taken to travel that distance is known as which of these?
A. speed
B. constant speed
C. instantaneous speed
D. average speed
Lesson 2 – LR1

47. Units of speed are units of distance divided by which of these?
A. units of speed
B. constant speed
C. units of time
D. average speed
Lesson 2 – LR2

48. How is constant speed represented on a distance-time graph?
A. a wavy line
B. a crooked line
C. a straight line
D. a curved line
Lesson 2 – LR3

49. 3. Constant speed is the same thing as average speed.
Do you agree or disagree?
3. Constant speed is the same thing as average speed.
4. Velocity is another name for speed.
Lesson 2 - Now

50. Lesson 3 Reading Guide - KC
Acceleration
What are three ways an object can accelerate?
What does a speed-time graph indicate about an object’s motion?
Lesson 3 Reading Guide - KC

51. Lesson 3 Reading Guide - Vocab
Acceleration
acceleration
Lesson 3 Reading Guide - Vocab

52. Acceleration—Changes in Velocity
Acceleration is a measure of how much the velocity of an object changes in a unit of time.
An object accelerates when its velocity changes as a result of increasing speed, decreasing speed, or a change in direction.
Lesson 3-1

53. Acceleration—Changes in Velocity (cont.)
Acceleration has a direction and can be represented by an arrow.
Lesson 3-1

54. Acceleration—Changes in Velocity (cont.)
What are three ways an object can accelerate?
Lesson 3-1

55. Calculating Acceleration
Acceleration is a change in velocity during a time interval divided by the time interval during which the velocity changes.
Lesson 3-2

56. Calculating Acceleration (cont.)
Acceleration is in the direction of motion if it is positive and opposite the direction of motion if it is negative.
Lesson 3-2

57. Speed-Time Graphs
A speed-time graph shows how speed changes over time.
A speed-time graph has time on the horizontal axis—the x-axis, and speed on the vertical axis—the y axis.
Lesson 3-3

58. Speed-Time Graphs (cont.)
horizontal
from Greek horizein, means “limit, divide, separate”
vertical
from Latin verticalis, means “overhead”
Lesson 3-3

59. Speed-Time Graphs (cont.)
An object at rest is not moving, so its speed is always zero.
Lesson 3-3

60. Speed-Time Graphs (cont.)
For an object moving at constant speed, the speed-time graph is a horizontal line.
Lesson 3-3

61. Speed-Time Graphs (cont.)
The line on the speed-time graph for an object that is speeding up has an upward slope.
Lesson 3-3

62. Speed-Time Graphs (cont.)
The line on the speed-time graph for an object that is slowing down has a downward slope.
Lesson 3-3

63. Speed-Time Graphs (cont.)
What does a speed-time graph show about the motion of an object?
Lesson 3-3

64. Summarizing Motion There are several ways to describe motion.
You can describe position by direction and distance from a reference point.
You can compare distance and displacement to find average speed.
You can describe velocity by speed and direction.
Lesson 3-4

65. An object accelerates if it speeds up, slows down, or changes direction.
Lesson 3 - VS

66. Acceleration in a straight line can be calculated by dividing the change in speed by the change in time.
Lesson 3 - VS

67. A speed-time graph shows how an object’s speed changes over time.
Lesson 3 - VS

68. An objects accelerates when its velocity changes as a result of which of these?
A. increasing speed
B. decreasing speed
C. a change in direction
D. all of the above
Lesson 3 – LR1

69. On a speed-time graph, where is time located?
A. the horizontal axis (the x-axis)
B. the vertical axis (the y-axis)
C. both of these
D. neither of these
Lesson 3 – LR2

70. Which of these refers to a change in velocity during a time interval divided by the time interval during which the velocity changes?
A. acceleration
B. speed
C. velocity
D. none of these
Lesson 3 – LR3

71. Do you agree or disagree?
5. You can calculate acceleration by dividing the change in velocity by the change in distance.
6. An object accelerates when either its speed or its direction changes.
Lesson 3 - Now

72. Interactive Concept Map Chapter Review Standardized Test Practice
Key Concept Summary
Interactive Concept Map
Chapter Review
Standardized Test Practice
Chapter Review Menu

73. The motion of an object can be described by the object’s position, velocity, and acceleration.
The BIG Idea

74. Lesson 1: Position and Motion
An object’s position is its distance in a certain direction from a reference point.
The position of an object in two dimensions can be described by choosing a reference point and two reference directions, and then stating the distance along each reference direction.
The distance an object moves is the actual length of its path. Its displacement is the difference its initial position and its final position.
Key Concepts 1

75. Lesson 2: Speed and Velocity
Speed is the distance an object moves in a unit of time.
An object moving the same distance each second is moving at a constant speed. The speed of an object at a certain moment is its instantaneous speed.
You can calculate an object’s average speed from a distance-time graph by dividing the distance the object travels by the total time it takes to travel that distance.
Velocity changes when speed, direction, or both speed and direction change.
Key Concepts 2

76. Lesson 3: Acceleration
Acceleration is a change in velocity over time. An object accelerates when it speeds up, slows down, or changes direction.
A speed-time graph shows the relationship between speed and time and can be used to determine information about the acceleration of an object.
Key Concepts 3

77. Which of the below can be illustrated with a distance-time graph?
A. comparisons between the motion of two objects
B. the average speed of an object
C. comparisons between distance and time
D. all of the above
Chapter Review – MC3

78. If acceleration is in the direction of motion, which of these is true?
A. It is positive.
B. It is negative.
C. The object is at rest.
D. The speed-time graph has a downward slope.
Chapter Review – MC4

79. Where is speed located on a speed-time graph?
A. the horizontal axis (the x-axis)
B. the vertical axis (the y-axis)
C. Speed is not indicated on a speed-time graph.
D. The speed is the slope of the line.
Chapter Review – MC5

80. A. the positive direction B. the negative direction
When you describe an object’s position, the opposite direction is which of these?
A. the positive direction
B. the negative direction
C. the reference direction
D. none of these
Chapter Review – STP1

81. Which term refers to the process of changing position?
A. displacement
B. reference point
C. motion
D. velocity
Chapter Review – STP2

82. Which of these describes the speed and the direction of a moving object?
A. velocity
B. constant speed
C. average speed
D. instantaneous speed
Chapter Review – STP3

83. Which of these results in a change of velocity?
A. the speed of an object changes
B. the direction an object moves changes
C. both the speed and direction of an object changes
D. all of the above
Chapter Review – STP4

84. Which term refers to a measure of how much the velocity of an object changes in a unit of time?
A. direction
B. speed
C. acceleration
D. velocity
Chapter Review – STP5