166 Speed, Velocity, and Acceleration Notes and Calculations Practice: video Rb5PSxJerM Compare what you think speed and.

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166 Speed, Velocity, and Acceleration Notes and Calculations Practice: video Rb5PSxJerM Compare what you think speed and velocity are /8/2016 Starter: What do you think motion is and give an example. Application: Notes: Glue here when done Connection Speed/ Velocity Calculations Exit: While on vacation, Lisa traveled a total distance of 440 miles. Her trip took 8 hours. What was her average speed? Use your speed chart. Speed, Velocity, and Acceleration Notes and Calculations EQ: What forces can change the motion and speed of an object, and how are those forces used to make our world lives easier? 2/8/2016

February 8, B/8.6 B I will be able to differentiate between speed, velocity, and acceleration while reading and writing notes and completing speed/velocity calculations 1 Starter 2. Notes 3. Calculations’ 4. Exit

Table of Contents DateLecture/ Activity/ Lab Page 1/26 Conduction Lab /27 Convection Lab /28 Radiation Lab /29 Thermal Energy Ws /1 Energy Transformations /2 Energy Transformations Lab /3 Energy Transformations Poster /4 Energy Transformations Lab II /8 Speed, Velocity, and Acceleration Notes

Speed, Velocity and Acceleration

TEKS 8.6A demonstrate and calculate how unbalanced forces change the speed or direction of an object’s motion TEKS 8.6B differentiate between speed, velocity and acceleration

Motion is a change in position relative to another object. Uniform motion - constant speed in a straight line Accelerated motion – motion that is changing in speed or direction

How fast an object is moving is called speed.

Speed is how far something travels (distance) in a given amount of time.

The formula for finding speed is Speed= distance time

The unit for speed is meters or kilometers (distance) and seconds or hours (time).

It looks like this: m/sec or km/hr

Sometimes, it is important to know the speed and direction an object is traveling.

Velocity is the term used when referring to the speed and a direction.

So, you might say the car is traveling at 50 km/hr, north.

Vectors can be used to show the direction of an object’s motion.

Which of these shows and which 25 m/sec 67 m/sec south 90 km/sec 13 km/sec speed velocity?

Acceleration

When a force is applied to a moving object, the object can speed up, slow down, come to a stop or change direction.

When a force changes the speed, direction or both of an object, we are changing the velocity of the object.

A change in velocity is called acceleration.

This is the change in velocity over a given period of time.

The formula for acceleration is acceleration = velocity time

Acceleration is measured meters per second per second or m/sec 2

An object falling to earth is subject to a change in acceleration of 9.8 m/s 2 due to gravity.

Examples of acceleration are…. stepping on the brakes

pedaling your bicycle faster

dropping your lunch tray to the floor…

a dog chasing its tail

a roller coaster climbing to the top of a hill.

166 Speed, Velocity, and Acceleration Notes and Calculations Practice: video Rb5PSxJerM Compare what you think speed and velocity are /8/2016 Starter: What do you think motion is and give an example. Application: Notes: Glue here when done Connection Speed/ Velocity Calculations Exit: While on vacation, Lisa traveled a total distance of 440 miles. Her trip took 8 hours. What was her average speed? Use your speed chart. Speed, Velocity, and Acceleration Notes and Calculations EQ: What forces can change the motion and speed of an object, and how are those forces used to make our world lives easier? 2/8/2016