# Understanding Movement, Speed, Velocity and Acceleration

Movement is when an object changes position, and can happen in 1, 2 or 3 dimensions. Speed is the distance traveled divided by time taken, and is a scalar quantity.

## About Understanding Movement, Speed, Velocity and Acceleration

PowerPoint presentation about 'Understanding Movement, Speed, Velocity and Acceleration'. This presentation describes the topic on Movement is when an object changes position, and can happen in 1, 2 or 3 dimensions. Speed is the distance traveled divided by time taken, and is a scalar quantity.. The key topics included in this slideshow are . Download this presentation absolutely free.

## Presentation Transcript

Slide1MovementMovement Aim: How can we distinguish between speed, velocity and acceleration?

Slide2What is  movement? What  is  movement?  Movement occurs when an object moves from one location to a different location.  Movement can happen in 1, 2 or 3 dimensions  As we learned yesterday, we can measure either the distance or the displacement of the movement.

Slide3SpeedSpeed  When movement occurs it takes  time  If we want to know how fast an object is moving we divide the distance traveled by the time it takes.  We call this  speed  Speed does not have a direction because distance doesn’t have a direction.  Is it a scalar or a vector?

Slide4Speed (example) Speed  (example) A car drives 300 meters west, then 400 meters south in 20 minutes. What is the distance covered? What is the average speed of the car?

Slide5VelocityVelocity  Velocity is a vector quantity (magnitude and direction)  Velocity is the rate at which an object changes its position.  If we divide the change in position, or displacement, by time, we get the average velocity.  Velocity is measured in meters per second (m/s)

Slide6Velocity (example) Velocity  (example) A car drives 300 meters west, then 400 meters south in 20 minutes. What is the car’s displacement? What is the average velocity of the car?

Slide7AccelerationAcceleration  Velocity is the rate of change of position.  Acceleration  is the rate of change of velocity.  Remember, velocity includes both a magnitude AND a direction.  Changing the magnitude (how fast or slow you are moving) OR the direction requires an acceleration

Slide8Acceleration (continued) Acceleration  (continued)  Acceleration is the rate of change of velocity, so…  Acceleration is measured in meters per second per second (m/s/s or m/s 2 )  In other words, 1 m/s 2  means that each second velocity changes by 1 m/s.