Motion An Introduction
What is Motion? Your Turn... Motion is all around us. All types of motion share common characteristics, from the motion of stars and planets to the motion of sub-atomic particles! Your Turn... What is Motion? How can you tell an object is in motion or not?
Frame of Reference The way in which one perceives, interprets and evaluates data. May be influenced by position, values, customs, views, etc.
Simple and Complicated Motion Simple Examples Walking Turning Jumping Complicated Examples Dancing Gymnastics Synchronized What are some aspects of motion (key words) that you consider when classifying motion as either simple or complicated? List them…
In your own words! What is Science? What is Technology?
Science, Technology, and Motion There is a distinct relationship between science and technology, although they often overlap and build on each other. Science deals with the generating and ordering of systematic knowledge. Technology deals with the systems, organization, and techniques of scientific or systematic knowledge, often in response to social and human condition. Some types of questions can lead to further understanding through scientific experiment.
Characteristics of Science Scientific knowledge is based on evidence, developed privately by individuals or groups, that is shared widely with others. Scientific knowledge is complicated and subject to change. It is not an absolute truth for all time. Scientific knowledge is a product of human observation, critical thinking, and experimentation.
Art Skills! Draw Science Draw Technology
Distance Distance » the amount of space between two objects or points. Measured by ruler, odometer, tape measure... Common measurement is the meter Can be estimated
Time Time » duration between two events Measured with a clock, stop watch, pendulum… Usually measured in seconds, minutes or hours * We sometimes measure distance in time (How far is it to Regina?)
Speed Distance travelled per unit time. To measure speed we use a radar, calculations and … Examples: The car traveled at 79 Km/h Usain Bolt ran 100m/h
Distance and Time Distance and time are related in order to determine the speed of an object. What speed do you walk? 6 km/hr How fast do you drive on the highway? 100 km/hr How fast does an airplane travel? 800 km/hr
The most common way to calculate the uniform motion of an object moving in a straight line is with the formula: v = d / t v is the speed d is the distance moved t is the time it takes to complete the movement The SI units for speed are m / s (meters per second).
Distance What is One-Dimensional Motion? During this unit, we will (mostly) restrict ourselves to the study of one-dimensional motions; that is, motion along a straight line.
Distance One Dimensional Motion Three Dimensional Motion Two Dimensional Motion A body moving at constant velocity can be described by a sum of velocities in two directions, typically x and y co- ordinates. The path of a projectile may combine constant speed in the horizontal direction with acceleration due to gravity in the vertical direction. Distance One Dimensional Motion Motion along a straight line Forward= positive movement Backwards= negative motion Three Dimensional Motion Motion in the X, Y and X planes. Examples: a bird flying, a kite flying.
Brainstorm! 1-dimensional 2-dimensional 3-dimensional OR i.e. 2-dimensional 3-dimensional OR i.e. Examples: Brainstorm!
Distance Indicating an Object’s Position: For motion in one dimension, it is usually most convenient to indicate position by choosing a convenient zero position, marking one direction from zero as positive positions, and the other direction as negative positions, number-line style. It is important to note that you are free to choose any convenient point as the zero position for your motion (often the starting point is the most convenient).