Chapter 6 Describe the “coin and feather” experiment and state what the observation shows. (5M) Put a coin and a small paper disc in a glass tube (1M) Use a vacuum pump to remove the air from the tube (1M) Hold the tube vertically then invert it quickly. (1M) The coin and the paper disc fall at the same rate (1M) The experiment shows that objects with different masses fall at the same rate when there is no air resistance. (1M) How can you find the height of a building if you are given
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reason‚ peers interested in physics and ballistics may have an interest in this experiment. Peers interested especially in the study of energy and momentum would have the most interest in this data. While analyzing the data found from a ballistic pendulum experiment‚ the Law of Conservation of Mechanical Energy and the Law of Conservation of Momentum both need to be utilized. The involvement of both of these physical laws struck the group ’s immediate interest because of the pertinence to what
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traveling even if the car is stopped by a crash. Changing or stopping an object’s momentum requires a force acting over a period of time. If momentum changes instantly‚ as in a car crash‚ the force is very‚ very great! In a head-on collision‚ if a passenger flies into the dashboard of a car‚ their momentum is instantly stopped‚ and serious injury is often the result. If the passenger is restrained by a seat-belt‚ their momentum is reduced more gradually by the constant and smaller force of
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Introductory Physics I Elementary Mechanics by Robert G. Brown Duke University Physics Department Durham‚ NC 27708-0305 rgb@phy.duke.edu Copyright Notice Copyright Robert G. Brown 1993‚ 2007‚ 2013 Notice This physics textbook is designed to support my personal teaching activities at Duke University‚ in particular teaching its Physics 141/142‚ 151/152‚ or 161/162 series (Introductory Physics for life science majors‚ engineers‚ or potential physics majors‚ respectively). It is freely
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For each problem (momentum‚ energy & mass)‚ we will start with an initial chapter dealing with some results of the molecular theory of the transport phenomena (viscosity‚ thermal conductivity & diffusivity) Then‚ proceed to microscopic level and learn how to determine the velocity‚ temperature and concentration profiles in various kinds of systems. Then‚ the equations developed at microscopic level are needed in order to provide some input into problem solving at macroscopic
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Higher Physics: Mechanics and the properties of matter Summary Notes Vectors Page 2 Equations of motion Page 7 Newton’s Second Law‚ energy and Power Page 14 Momentum and Impulse Page 18 Density and pressure Page 26 Gas Laws Page 30 Vectors A physical quantity is a measurable quantity. Physics is about the relationships between physical quantities. There are two kinds of physical quantity. One consists of a number of units‚ the other consists of a number
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-Temperature: kelvin (K) -Amount of substance: mole (mol) -Electric current: ampere (A) -Derived units: Constructed from combinations of base units; radians = m/m = 1 -Force: newton (N) = kg*(m/s2 -Volume = m3 -Impulse = N*s -Momentum = kg*(m/s) -Angular momentum = kg*(m2 -Angular acceleration = radian/s2 -Angular velocity = radian/s -Centripetal acceleration = kg*[(m/s)2 -Dimensional analysis: place all units in length (L) and time (T) -d=vt+2/3at2 = L= + ( ) = L=L+L 2=v2+5ad
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Physics in Sports Introduction Billiards‚ Pool or 8 Ball are the names given to this game. For many of us 8 Ball is a game that we play at friends’ place or at pool houses‚ pubs and a good many other places. But when you are playing 8 Ball you would never really think about physics would you? But it is there‚ and it is in play everytime the cue hits the ball to make it curve‚ everytime you jump the ball over another or bounce it around the cushioned sides to get the white ball
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Hoo Sze Yen Form 4 Experiments Physics SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 PENDULUM Hypothesis: The longer the length of a simple pendulum‚ the longer the period of oscillation. Aim of the experiment: To investigate how the period of a simple pendulum varies with its length. Variables: Manipulated: The length of the pendulum‚ l Responding: The period of the pendulum‚ T Constant: The mass of the pendulum bob‚ gravitational acceleration Apparatus/Materials: Pendulum bob‚ length
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proper game would never commence. Not only are tennis serves important‚ they also should be executed correctly to achieve the best possible outcome. I will evaluate my serve in regards to three major biomechanical principals‚ force & motion‚ momentum & inertia and projectile motion. (Hustler‚ 2012) Force is the change in the velocity of an object. Force changes when the objects motion changes usually by the pushing and pulling of the motion on that object. Force incorporates the law of acceleration
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