Notice of Assessment Task Preliminary Course in Physics Date of Initial notification: 1/2/2013 | Date of submissionTerm 1 Week 5 | Task Number: One – Research | Time Allowed:2 weeks | Weighting of Task: 15% | Course component / Focus area / Topic Module:Module1: The World Communicates | Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the
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Physics 111 Week 1 Summary Vectors in Physics Scalar: Has magnitude‚ no direction. Ex. Distance‚ speed‚ time‚ temperature‚ charge‚ energy. Vector: Mathematical quantity with magnitude and direction. Or A Ay Ax Kinematics – Mathematical description of motion without reference to what causes it. Need 1. Position and 2. Time to describe it. Instantaneous Velocity = Instantaneous Velocity
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Theory CONDUCTORS‚ INSULATORS AND CONDUCTIVITY Conduction of electricity in electric circuits takes place due to the presence of excess electrons in materials called conductors. Electrons move in the direction in which the potential has been applied. The ability of a conductor to conduct electricity is directly proportional to the material’s area of cross section and inversely proportional to its length. Where‚ G is conductance σ is conductivity A is area of cross section
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CROATICA CHEMICA ACTA CCACAA 78 (1) 99¿103 (2005) ISSN-0011-1643 CCA-2984 Original Scientific Paper Acid Value Determination in Vegetable Oils by Indirect Titration in Aqueous-alcohol Media Elena Kardash* and Yakov I. Tur’yan National Physical Laboratory of Israel (INPL)‚ Givat Ram‚ Jerusalem 91904‚ Israel RECEIVED JANUARY 16‚ 2004; REVISED JULY 21‚ 2004; ACCEPTED OCTOBER 28‚ 2004 Keywords acid value vegetable oils indirect titration A new method of acid value determination in
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Bubbles By Olivia Kenyon Table of contents Table of contents 2 Table of figures 3 Background knowledge 4 The film 4 The soap or detergent 4 The shape 5 The colours 7 Different fabrics as wands 9 My investigation 10 Part 1 10 Part 2 12 Other sources 13 Table of figures Figure 1. Soap molecules surrounding a layer of water making the film of a bubble 4 Figure 2. The general structure of a soap molecule 5 Figure 3. A table explaining that the sphere
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Raw Data: Number of Washers | 4 | 6 | 8 | 10 | 12 | Mass of Washers (kg) (+/- .0005 kg) | 0.0265 | 0.0393 | 0.0522 | 0.6260 | | Mass of Stopper (kg) (+/- .0005 kg) | 0.0040 | 0.0040 | 0.0040 | 0.0037 | 0.0037 | Radius of String (m) (+/- .05 mm) | 0.5300 | 0.5150 | 0.5800 | 0.5840 | 0.5530 | Time for 20 Revolutions (s) (+/- .0005 s) | 10.0300 | 8.2650 | 7.7200 | 7.0800
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AIM: Finding the gravitational field strength by using a simple harmonic motion of a spring and slotted masses. INTRODUCTION: When a mass suspended from a spring is displaced‚ due to the acceleration‚ kg s-2‚ from its equilibrium and released it will oscillate up and down with a kind of motion called simple harmonic motion‚ shm. The period (T)‚ time taken to measure for one complete oscillation‚ of this motion is: m/kg =
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Page 12 1 a) Between t = 30 and t = 45 mins b) 7.5 mins c) i) distance travelled = area under graph between t = 0 and t = 12½ mins ii) average speed = total distance travelled total time for journey = total area under graph 60 mins 2 a) ∆v = 32 m/s a =10 m/s² t = ∆v = 32 = 3.2 s a 10 b) 3 a) OP – constant acceleration PQ – constant acceleration (greater than OP) QR – constant speed RS – constant deceleration b) O and S c) 6 m/s d) 70 s e) Total distance travelled = area under
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Forces and Newton’s Laws of Motion Topics: • Motion and Newton’s first law • • • • • What is a force? Identifying forces Newton’s second law Free‐body diagrams Newton’s third law N t ’ thi d l Sample q p question: These ice boats sail across the ice at great speeds. What gets the boats moving in the first place? What keeps them from going even faster? Slide 4-1 What Causes Motion? In the absence of any forces acting on it‚ an object will continue moving forever.
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PHYS 221 Experiment M10 Harmonic Motion of a simple Pendulum Jacob LaMarre Group members: Josh‚ Courtney‚ Ashley Abstract: Determine the acceleration due to gravity using a pendulum. Introduction: A simple pendulum consists of a mass suspended by a length of string. When set Oscillating‚ the mass will have a period “T” given by the following equation. This equation shows the only variables that affect the rate at which the pendulum swings is the length “l” that is measured to the center
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