Author:
Jason Fritz

**I can answer the following questions: **

•What is speed?

•How can you use a distance-time graph to calculate average speed?

•What are ways velocity can change?

**6.2.2.1.1**

Measure and calculate the speed of an object that is traveling in a straight line.

**6.2.2.1.2**

For an object traveling in a straight line, graph the object’s position as a function of time, and its speed as a function of time. Explain how these graphs describe the object’s motion.

•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.

•Velocity includes both the speed and the direction of motion.

Tutorial

While watching the video take notes by pausing where needed and feel free to rewind when necessary.

Use this outline to take note from the "flipped" video of Ch.1 Lesson 2 "Speed and Velocity."

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Source: Physics

*Acceleration* (pg 27) 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.

*Example: You are riding your bike at a velocity of 5 m/s down your street. A dog starts to chase you so you start to peddle as fast as you can for the next 2 seconds. You now have a velocity of 9 m/s. What is your acceleration? 9 m/s – 5 m/s = 4m/s divided by the time (2s) = 2 m/s/s is your acceleration.*

Source: McGraw/Hill; Physical iScience

Source: Particle Man

This video helps you learn easily to find speed, average speed, distance and time.

Source: Zaaxa com

Lesson 2 text written for the approaching-level student

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Source: McGraw-Hill; Physical iScience

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Source: McGraw-Hill; Physical iScience

Mr. Travers discusses average speed and goes through the 5 steps in creating a graph of that average speed.

Source: McGraw/Hill; Physical iScience

Mr. Causey Shows you step by step how to setup and interpret motion graphs. Learn about both distance versus time and velocity versus time. Also learn the importance of slope for velocity and acceleration.

Mr. Causey will show you how to get the position equations from a motion graph.

Source: Mr. Causey

Here are the hosts of Design Squad Nation, Judy Lee and Adam Vollmer, doing the Zip Line challenge. The goal is simple... Design and build something that can carry a Ping-Pong ball from the top of a zip line string to the bottom in four seconds (or less!).

Source: Design Squad PBS

Can I measure the average speed of a moving object?

Will the shape or size change the speed of a moving object?

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What is speed? And how do we calculate it? Find out in this GCSE / K12 Physics video from The Fuse School.

Source: The Fuse School

Using the vocabulary students will write the definition, draw a picture, and think of something that reminds them of the key vocabulary words related to speed.

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Use the magic triangle to solve answer the equations

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Can I graph the changing speeds of someone who crawls, walks, or runs?

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Mr. Andersen shows you how to interpret a position vs. time graph for an object with constant velocity. The slope of the line is used to find the velocity. A phet simulation is also included.

Source: Bozeman Science

Mr. Andersen shows you how to read a position vs. time graph to determine the velocity of an object. Objects that are accelerating are covered in this podcast. He also introduces the tangent line (or the magic pen).

Source: Bozeman Science

With many advances in computational methods, researchers increasingly rely more on computers to design airplanes and space vehicles. But, a lot of uncertainty continues to exist in their codes. This research targets finding a way to reduce, if not eliminate, some of the uncertainty.

Source: NASA Langley Technology Source

**What is the relationship between distance, average speed, and time?**

**click on the image to go the the Virtual Lab **

Source: Glenco

Advanced explanation example of calculating speed and velocity

Source: Khan Academy

Source: Concord Consortium

*To watch Safari Montage videos just click on the link and sign in just like you would the school's computer. Your computer may require a media player download to watch.*

Design Squad: The Need for Speed

A professional race car builder challenges the Design Squad teams to convert kiddie toys -- a red wagon and a tricycle -- into motorized dragsters. Fasten your seatbelts for engineering and design! ''Design Squad'' is an award-winning reality competition series whose goal is to increase students' knowledge of engineering, the design process, and the roles of engineering and design in society.

21 min. 1 sec.

How do you weigh a whale? ** How does your speedometer work?** Examine the five most common areas of measurement in our everyday lives:

44 min 5 sec

Source: Safari Montage