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Speed and Velocity (Chapter 1 Lesson 2)

Speed and Velocity (Chapter 1 Lesson 2)

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?

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

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.

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Chapter 1 Lesson 2 Speed and Velocity Flipped Video

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

Chapter 1 Lesson 2: Speed and Velocity Presentation

Source: McGraw-Hill; Physical iScience

Ch.1 Lesson 2 Outline of Notes

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


Magic Speed Triangle

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

They Might Be Giants - Speed and Velocity w/ Marty Beller

Source: Particle Man

Finding speed, distance and time

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

Source: Zaaxa com

Instantaneous speed and velocity | One-dimensional motion | Physics | Khan Academy

Instantaneous speed and velocity looks at really small displacements over really small periods of time. Created by David SantoPietro.

Source: Khan's Academy


In this segment, NBC's Lester Holt and former NFL running back Deuce McAllister explore kinematics on the playing field. NSF-funded scientists Tony Schmitz from the University of Florida and John Ziegert of Clemson University explain how the kinematic concepts of position, velocity and acceleration can be used to define how a running back moves.

Source: Provided by the National Science Foundation & NBC Learn

Speed and Velocity Vocabulary Flash Cards

Source: Quizlet

Reading Coach: Speed and Velocity

Lesson 2 text written for the approaching-level student


Source: McGraw-Hill; Physical iScience

Speed and Velocity Book Assignment


Source: McGraw-Hill; Physical iScience

Hot Wheels Lab Procedures and Explination


Hot Wheels Lab Sheet


Distance vs. Time Graph

Source: McGraw/Hill; Physical iScience

Motion in a Straight Line: Crash Course Physics #1

Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also, how does a physicist discuss speed as opposed to a police officer? And did you deserve that ticket? You can figure it all out with the help of Physics!

Finding Average Speed

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

Source: McGraw/Hill; Physical iScience

Distance-time graphs & speed - GCSE Science Shorts Sketch

Ah, Bob's up to his old tricks again. Can't blame him though, can you...
Bob's Speed-Time graph & acceleration conclusion:

Source: Science Shorts

Physics - Motion Graphs and the Position Equations

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

Green Beret Time Distance Graphs

Using the data from class create a 4 line comparative graph (1 for each run down the line). Be sure to assign a different color for each run and good luck.

Hint: Don't forget your title, x-axis is the time, and y-axis is the distance (and don't forget your units).


Design Squad Zip Lines

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

Design Squad Zip Line


Source: Design Squad PBS

Different Shapes and Sizes Lab

Essential Skill: I can measure the average speed of a moving object and graph the data.
Essential Question: Will things with different shapes and/or sizes have different speeds?


Calculating Speed

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

How to Read and Interpret Speed and Motion Graphs

Crawl-Walk-Run Lab

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


Vocabulary 4-Square

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.


Speed Practice Problems

Use the magic triangle to solve answer the equations


Position vs Time Graph pt. 1

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

Position vs Time Graph pt. 2

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

NASA | FLEET For Unseeded Velocity Measurements In All Speed Regimes

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

Speed Virtual Lab

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

click on the image to go the the Virtual Lab

Source: Glenco

Calculating Average Velocity or Speed

Advanced explanation example of calculating speed and velocity

Source: Khan Academy

Motion Toward and Away

Explore different ways of describing motion on a graph

Source: Concord Consortium

Calculating speed

If the speedometer on your car stopped working, how could you calculate how fast you were travelling?

Source: LSGScience

Safari Montage Videos

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.

Bill Nye's Solving for X: Algebra I, Volume 1

Join Bill Nye the Science Guy as he teaches principles in algebra such as variables and solving equations in fun and engaging ways. Nye's approach to learning important mathematical concepts will help students apply algebra to the real world. Topics include variables, balancing equations, dimensional analysis and linear equations. At 7 min 20 sec. Bill Nye breaks down speed equations.

17 min 28 sec

Measure It

How do you weigh a whale? How does your speedometer work? Examine the five most common areas of measurement in our everyday lives: Distance, time, speed, weight and temperature. Visit the National Institute of Standards and Technology (NIST) to find out where common measurements come from and how standards for those measurements are set. Go inside Stanley Tools and see how they guarantee every measuring tape gives the right distance every time. Learn why a $5 kid's watch is more accurate than a $10,000 luxury brand. 

 44 min 5 sec

Source: Safari Montage