Motion of objects living and nonliving matter is one of the key branches of physics. You are welcome to bring questions to the class for discussion. Physics notes form 3 free download kcse revision notes pdf. In the second half of next mondays class, we will do sample problems chosen from old tests and homeworks on topics relevant to test 2. The equations presented so far can be used to analyse simple motion problems. A ball is thrown from the top of a building with an initial speed of 8 ms at an angle of. Projectile motion is one of the concepts in physics 225 that students have the most trouble with. If we more to dandenong we can say we have been displaced 32 km from melbourne, but to completely. Apply constant acceleration equations to the vertical motion of the sandbag. An object moves with a constant velocity if the magnitude and direction of the motion is always constant. All other sciences are built on a knowledge of physics. Phantastic physics series this book is based on the australian national. If acceleration is not constant, the solution would require calculus or numerical methods computerbased approximation lecture notes. Linear motion powerpoint slides based on chapter 3 of the applied physics textbook, conceptual physics, linear motion.
We can understand science in general much better if we understand physics. You are still going to be using the linear motion equations that youve been using in class see figure 1 but now. Questions 14 refer to the velocity time graph of a cars. Professor of physics southern polytechnic state university a powerpoint presentation by paul e. Physics 0703 sound, speed, frequency, and wavelength. Constant acceleration in linear motion july 17, 2012 iii. In kinematics forces causing motion are disregarded while dynamics deals with motion of objects and the forces causing them. Physics is the most basic of the living and nonliving sciences. Other topics will also require the introduction of motion. The ideas, however, are no different from the ones youve been dealing with already. The quotient of distance and velocity will give us the time that the object was in motion. Kinematics 15 periods relative motion motion in the same direction motion in opposite dir. It finds applications in numerous fields such as engineering, medicine, geology, and sport science among. Data has been exported to an excel file where it was used to calculate linear acceleration, horizontal acceleration and vertical acceleration.
Introduction linear motion is the motion a straight line and the movement in a direction where forwards is positive and backwards is negative. Tippens, professor of physics southern polytechnic state university a powerpoint presentation by. Kinematics is the section of physics which studies the motions of objects without considering the effects that produce the motion. The study of motion is divided into two areas namely kinematics and dynamics.
Chapter 11a angular motion a powerpoint presentation by paul e. Chapter 10 deals with the static and dynamic properties of elementary particles. S4p120 discuss the centrifugal effects with respect to newtons laws. Graph that motion the pdf file below accompanies the graph that motion interactive.
Physics 0702 hookes law and simple harmonic motion. File type icon file name description size revision time. If the distance is in metres and the time is in seconds, the unit of speed is ms1. Circular motion s4p119 explain qualitatively why an object moving at constant speed in a circle is accelerating toward the centre of the circle.
Linear motion and forces the equation for calculating speed is speed distance time using symbols we write v s t where v speed, s distance and t time. For linear motion we will assume a constant acceleration. Linear motion preliminaries linear motion is motion in a straight line. Motion of a particle along the circumference of a circle is called circular motion. Linear motion planet holloway physics variables and simple definitions. However, a complex problem particularly when the object is accelerating will. Average velocity average velocity instantaneous velocity and constant acceleration 1. Distance the distance traveled by an object is the total length that. The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. The key to projectile motion is to analyze the motion one axis at a time either xaxis or yaxis. Aristotle believed that the natural state of motion for objects on the earth was one of rest. S4p121 draw freebody diagrams of an object moving in uniform circular motion. The angular displacement per unit time is defined as angular velocity.
Finally, recall the definition of linear acceleration a for the motion of an object with a changing linear velocity from v 0 to a final linear velocity v f over a time dt xa\ v fv 0 dt the angular analog of linear acceleration is the angular acceleration a, which is useful for situations where the angular velocity a. Velocity answers the question how fast is an object traveling. It could be simplified to a lower level of physical science. You will have 60 minutes 1 hour to complete this test. Projectile motion california state university, fullerton.
Instructors are permitted to make and distribute copies for their classes. Displacement x when an object is moved from one point to another it is said to be displaced. Linear motions, where the trajectory is a straight line. Linear motion refers to the motion of an object in a straight line. When an object is moved from one point to another it is said to be displaced. Linear motion also called rectilinear motion is a onedimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension. Parabolic motion, work and kinetic energy, linear momentum, linear and angular motion problems and solutions 1. You are still going to be using the linear motion equations. It has developed over 34 years of teaching physics. In other words, objects needed a force to be kept in motion.
According to newtons first law of motion, objects that do not experience any net force will continue to move in a straight line with a constant. If the distance is in kilometres and the time is in hours, the unit of speed is kmh1. For each of the following questions remember to include a picture and a motion diagram. The areas of nuclear and particle physics are emphasized as rev. The velocity of a particle moving along the x axis is given for t 0 by v x 32. Linear motion 1d motion equations distance position x velocity v acceleration a equations to know. The relationship between velocity, distance, and time is.
Theory distance, velocity, and acceleration velocity and acceleration, along with position and time, are the fundamental quantities used in kinematics to describe motion. According to newtons first law also known as the principle of inertia, a body with no net force acting on it will either remain at rest or continue to move with uniform speed in a straight line, according to its initial condition of motion. Displacement and 1 and 2dimensional motion may be used in showing. Examples include wave motion as in sound and light, electricity and magnetism movement of force fields and celestial movement within the heavens. This oer repository is a collection of free resources provided by equella. Understand the elements in the topic, linear motion, by watching this video.
It covers the concepts of distance, displacement, speed, velocity, and acceleration. Draw analogies relating rotational motion parameters, to linear x, v, a and solve rotational problems. Force and motion linear motion linear motion is the movement of an object along a straight line. Tippens, professor of physics southern polytechnic state university. This pdf presentation covers linear motion as taught in a general physics class. The relationships stated for linear motion are also valid for rotational motion. Kinematics deals with the motion aspect only while dynamics deals with the motion and the forces associated with it.
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