Measuring Motion. Day 1
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1 Measuring Motion Day 1
2 Objectives I will identify the relationship between motion and a reference point I will identify the two factors that speed depends on I will determine the difference between speed and velocity I will analyze the relationship of velocity to acceleration I will interpret a graph showing acceleration
3 Key Terms Motion Distance Displacement Instantaneous speed Constant speed Speed Velocity Acceleration
4 Measuring Motion
5 Lit Circles- Everyone has a task (20 minutes) Row 1 Row 2 Velocity: Direction Matters (p ) Row 4 Speed Depends on Distance and Time Row 3 Observing motion Acceleration: The Rate at Which Velocity Changes p. 112 Row 5 Acceleration: The Rate at Which Velocity Changes (p ) Tasks- 1 per person Summarizer (1-2 people) Questioner/Discussion Director Connector Illustrator (1-2 people)
6 Lit Circles- Let s Share Summaries need to be written on the board Pictures under the summary Discussion Director- present information and connections made in the discussion Row 1 Row 2 Velocity: Direction Matters (p ) Row 4 Speed Depends on Distance and Time Row 3 Observing motion Acceleration: The Rate at Which Velocity Changes p. 112 Row 5 Acceleration: The Rate at Which Velocity Changes (p )
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12 Things to Do Homework Section Review p. 111 & 114 write all questions Assessment Section Quiz Monday 1/11
13 Measuring Motion Day 2
14 Objectives I will identify the relationship between motion and a reference point I will identify the two factors that speed depends on I will determine the difference between speed and velocity I will analyze the relationship of velocity to acceleration I will interpret a graph showing acceleration
15 Key Terms Motion Distance Displacement Instantaneous speed Constant speed Speed Velocity Acceleration
16 Essential Question Are distance and time important when describing motion?
17 Describing Motion Motion: occurs when an object changes position relative to a reference point Distance v. Displacement Distance- how far an object has traveled Displacement- distance and direction of an object change in position from starting point Speed- the distance an object travels per unit time rate of change on position Average (avg) speed (v) = total distance (d)/ total time (t) v=d/t
18 Types of Speed Type of Speed Description Example Instantaneous speed of any given point in time driving a car and looking down at the speedometer Average total distance traveled divided by total time taking a road trip Constant speed that does not vary putting a car in cruise control
19 Let s Try a Problem If you take a walk for 1.5 hours and travel 7.5 km, what is your average speed?
20 Graphing Motion Motion of an object can be plotted on a distance - time graph x axis- time y axis- distance The slope of a line on a distance - time graph gives the speed of an object in motion
21 Formula Triangle Foldable
22 Things to Do Homework Complete Formula Circle & Questions Quiz Monday 1/11
23 Measuring Motion Day 3
24 Essential Question What is the difference between positive and negative acceleration?
25 Acceleration Velocity- includes speed of an object and the direction of its motion Question: what is the difference between speed & velocity? Velocity includes direction whereas speed does not. Acceleration- rate of change of velocity. acceleration occurs when an object changes speed, its direction, or both.
26 Calculating Acceleration Note: Change in velocity = final velocity - initial velocity acceleration formula = a=vf-vi/t
27 Acceleration Positive Acceleration A plane takes off Final Velocity = 80 m/s Initial Velocity = 0 m/s Time= 20 s Negative Acceleration A bike comes to a stop Final velocity = 0 m/s Initial velocity = 3 m/s Time = 2s
28 Practice Problems: Acceleration
29 Things to Do Study Guide: Define Key Terms Know how to use the Speed Formula Know how to use the Acceleration formula Know the difference between acceleration and velocity Know the difference between positive and negative acceleration Quiz Section Quiz 1/11
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