1 / 11

Linear Motion

Linear Motion. Objects Moving in a Straight Line. Unit 2: Goals. In this unit you will: Represent motion through the use of words, motion maps and graphs. Use the terms position, distance, displacement, speed and velocity in a scientific manner to describe motion.

hu-bowers
Télécharger la présentation

Linear Motion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Linear Motion Objects Moving in a Straight Line

  2. Unit 2: Goals • In this unit you will: • Represent motion through the use of words, motion maps and graphs. • Use the terms position, distance, displacement, speed and velocity in a scientific manner to describe motion. • In physics, the study of motion is sometimes referred to as KINEMATICS.

  3. Picturing Motion • Perceiving motion is instinctive—your eyes pay more attention to moving objects than to stationary ones. Movement is all around you. • Movement travels in many directions, such as the straight-line path of a bowling ball in a lane’s gutter, the curved path of a tether ball, the spiral of a falling kite, and the swirls of water circling a drain. • When an object is in motion, its position changes. Its position can change along the path of a straight line, a circle, an arc, or a back-and-forth vibration.

  4. Motion in a Straight Line • A description of motion relates to speed and time. You must be able to answer the questions of “where?” and “when?” an object is positioned to describe its motion. • Position= location

  5. Movement of a car In the picture below, the car moves from point A to point B.

  6. Vectors and Scalars • A scalar quantity is just the magnitude (amount). • Speed is a scalar. • For example: 50 meters/second. • A vector quantity indicates not only the amount, but the direction, too. • Velocity is a vector. • For example: 50 meters/second, North.

  7. Distance and Displacement • Distance refers to how far an object travels. • This is a scalar quantity. -For example: the car traveled 35km. • Displacement refers to how far the object travels, but also adds direction. • This is a vector quantity. -For example: the car traveled 35km, North.

  8. Speed • Speed is how fast an object is traveling. • This is a scalar quantity. -For example: 55m/s • Average speed: speed over a time interval. • Instantaneous speed: speed “right now”

  9. Velocity • Velocity is how fast an object is traveling, but direction is also indicated. -For example: The train traveled at 55m/s, South.

  10. A helpful website: • www.Physicsclassroom.com • Designed to help you with definitions, concepts and examples to try. • We will be using this site in class often, but it is also accessible from home! • For Unit 2 Linear Motion: • See Physics Tutorial – 1-D Kinematics

  11. What is a Motion Map? • A motion map is a series of images that represents the movement of some object. • It consists of a particle (dot) to represent the position of an object and an arrow to represent the speed and direction the object is moving. • See the motion map reading handout.

More Related