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**The Length of a Straight Line Path Between Two Points is the..**

Speed Area Distance Volume Answer Now Seconds Remaining 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Which of the Measurements Shown Below are Distance?**

68 km/hr 12 cm/s 68 s Answer Now 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Which of the Following Are Speeds(Choose one)?**

How fast a car moves Length of a Race Track Path of an Elevator Rate a Person Slides Down a Rope Answer Now :00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**A Rocks Mass Is A Chemical Property Physical Property**

Constant Property All of the Above Answer Now VOTE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Because speed is a Measure of Distance Traveled Per Unit Time, Units for Speed are..**

M/s Cm/h Mi/h Ft/min M/h All of the Above Answer Now 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Which of the Following Describe Both Speed and Direction(Choose one)?**

Answer Now 65 m/s for and Hour 35 mi/h North 9.8 m/s Down 3.25 cm to the Right 53.7 km/h up 4.1 m/s to the East 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Which of the Following is Harder to Stop?**

A baseball traveling at 60 mi/hr A car rolling at 5 mi/hr Answer Now 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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Motion Chapter 10

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Objectives Explain the relationship between motion and a frame of reference. Relate speed to distance and time. Distinguish between speed and velocity. Solve problems related to time, distance, displacement, speed, and velocity.

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Motion Motion (Quick Time Movie) = Object’s change in position relative to a reference point Displacement = Change in the position of an object Distance measures the path taken. Displacement is the change of an object’s position. Displacement must always indicate direction. Quick Time Movie Relative Motion

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**Distance Vs. Displacement**

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Velocity Objectives Describe the concept of acceleration as a change in velocity. Explain why circular motion is continuous acceleration even when the speed does not change. Calculate acceleration as the rate at which velocity changes. Graph acceleration on a velocity-time graph.

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**Speed and Velocity What’s the difference between speed and velocity?**

Speed = How fast an object moves Velocity = Speed in a given direction Speed = Distance Traveled Time to Travel the Distance SI Unit for Speed = m/s Constant Speed = Equal distance in Equal amounts of Time Speed Quick Time Movie

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**Speed = distance/time When Solving for Full Credit (v = d/t)**

Quick time movie Velocity When Solving for Full Credit Given Info Write Equation Substitute Given Info Solve for Unknown Write Answer with Proper Units Always use correct Sig Figs and Scientific Notation!!

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**Speed and Velocity Speed can be studied with Graphs and Equations**

Distance Time Graph Slope = Speed

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**A car traveled 3. 5 E2 miles toward New York City for 5 hours**

A car traveled 3.5 E2 miles toward New York City for 5 hours. What was the velocity of the car?

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**A car traveled 3. 5 E1 miles/hour for 4 hours toward Chicago**

A car traveled 3.5 E1 miles/hour for 4 hours toward Chicago. How far did the car travel?

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**A plane travels 1. 925 E3 miles toward Colorado at a velocity of 5**

A plane travels E3 miles toward Colorado at a velocity of 5.50 E2 miles/hour. How long has the plane been traveling?

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**Instantaneous speed is the speed at a given point in time.**

Constant Speed –objects covering equal distances in equal amounts of time Instantaneous speed is the speed at a given point in time. What units do you measure speed in? mi/hr = English m/s = SI Unit km/hr = Metric Unit

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**A car travels 4. 0 E1 km in 2 hours towards Nevada**

A car travels 4.0 E1 km in 2 hours towards Nevada. What is the cars Velocity? Answer Now 20 m/hr 20 km/hr 20 mi/hr South 20 km/hr towards Nevada :20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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35 Scooter is driving down 9th Street in his 1962 Corvette. He drives 1.2 E2 meters in 1.7 E1 seconds. Assuming that he does not speed up or slow down, what is his speed in meters per second? 6 m/s down 9th st 7 m/s down 9th st 1.4 E-1 m/s 7 m/s Answer Now 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Liesel Kunz is running along a track that is 2. 51 E2 meters long**

Liesel Kunz is running along a track that is 2.51 E2 meters long. It takes her 1.26 E1 seconds to run the entire length of the track. What is her speed in meters per second? 35 1.99 E1 mi/s 1.99 E1 m/s 5 E-2 m/s along the track 5 E-2 m/s Answer Now 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**What changes with a change in direction: Velocity or Speed?**

Answer Now 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Can Speed Be Graphed? Yes No Answer Now 5 1 2 3 4 5 6 7 8 9 10 11 12**

13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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**Slope of the line = Average Speed**

Speed can be graphed! Distance-time graph. Slope of the line = Average Speed Quick Time Movie Average Speed What is the average speed of the racecar?

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**Constant Velocity: Moving Towards Frame of Reference**

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**Constant Velocity: Moving Away Frame of Reference**

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**What’s the only Difference?**

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Distance Time Graph

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Velocity Combine velocities to determine the resultant velocity.

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Example Problem A motor boat traveling 4 m/s, East encounters a current traveling 3.0 m/s, North. What is the resultant velocity of the motor boat? If the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore? What distance downstream does the boat reach the opposite shore?

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**Conversions are Needed:**

English to Metric Speeds Dimensional Analysis SI Unit to Metric Speeds Metric Conversion In order to convert you need to use conversion factors and D.A 1 mile = km = 1609 m 1 ft = 12 in = cm = m 1 yd = 3 ft = m 1 in = 2.54 cm = m 1 hr = 60 min = 3600 s

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**Convert the following English Standard Units to Metric Units.**

A football field is 100 yards long. How long is that in meters?

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If I were to hit a home run down the left side of Jacobs Field the ball would have to travel at least 3.25 E2 feet. How far is that in Meters?

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**A horse can gallop at a speed of 4. 2 E1 miles/hour**

A horse can gallop at a speed of 4.2 E1 miles/hour. How fast can the horse gallop in meters/second?

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**A race car can travel around 2. 25 E2 mi/hr**

A race car can travel around 2.25 E2 mi/hr. How many meters can it travel in 1.5 E1 s?

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**A person can walk about 3.1 mi/hr How many hours would it take them to travel 10 km?**

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Physics 12 - Kinematics.

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