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Physics 1050 - Section 1.1: Motion Diagrams
Chapter 1 - Concepts of Motion
13
Physics
Undergraduate 1
09/15/2017

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Term
Why is motion important?
Definition
The universe is in motion, from the smallest scale of electrons and atoms to the largest scale of entire galaxies. Motion is all around us.
Term
How do we describe motion?
Definition
The mathematical description of motion is called kinematics.
Term
How do we explain motion?
Definition
The explanation of motion in terms of its causes is called dynamics.
Term
What is motion?
Definition
The change of an object's position in time.
Term
What are the four basic types of motion?
Definition
  1. Linear Motion
  2. Circular Motion
  3. Projectile Motion
  4. Rotational Motion
Term
What are some examples of translational motion?
Definition
Linear motion, circular motion, and projectile motion.
Term
When does translational motion occur?
Definition
Translational motion occurs when the object moves through space.
Term
What is the object's trajectory?
Definition
The path along which the object moves, whether straight or curved.
Term
What is a frame?
Definition
Each separate image in a motion diagram.
Term
What is a motion diagram?
Definition
An image of several layered frames, showing an object's position at several equally spaced instants of time.
Term
How can we tell if an object is moving at a constant speed in a motion diagram?
Definition
The images are equally spaced.
Term
How can we tell if an object is speeding up in a motion diagram?
Definition
There is an increasing distance between the images.
Term
How can we tell if an object is slowing down in a motion diagram?
Definition
There is a decreasing distance between the images.
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