necessary to produce a temperature change of 1°C per gram of substance. The specific heats of different substances vary‚ and therefore this quantity may be useful in identifying an unknown. The measurement of heat changes is called calorimetry. In this lab activity‚ calorimetry will be used to determine the specific heat of an unknown metal. This will be done by using a styrofoam cup calorimeter containing water. A calorimeter is insulated so as to minimize any loss of energy to the surroundings. Therefore
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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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MAPUA INSTITUTE OF TECHNOLOGY DEPARTMENT OF PHYSICS EXPERIMENT 201 WORK‚ ENERGY AND POWER GRADE GRADE Name: CAYETANO‚ Ma. Frederiza Anne M. Program/Year: MSE-2 Course Code/Section: PHY11/B2 Student number: 2010102844 Group number: 2 Date of Performance: July 27‚ 2013 Date of Submission: August 3‚ 2013 Sir Bernard Aguirre Instructor GRAPH AND CALCULATIONS A. PART 1: DETERMINING THE FORCE‚ WORK AND POWER OF THE FAN CART F=wp+wa W=F∙s Pave=Wt where: F = Force of the Fan
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Purpose Determine the acceleration in a quick sprint. Question What would the participant’s acceleration be if he/she sprints forward in a positive direction? Hypothesis/Prediction When a person sprints forward‚ it means he/she speeds up. Consequently‚ the acceleration should be positive. When the velocity accelerates at a constant rate‚ the acceleration should remain constant. Therefore‚ if the participant is moving toward a positive direction and the speed increases‚ then the acceleration
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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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The Physics of Balls Bouncing off at Surfaces Leader: Mr. Edrian Pantas Contador‚ Love S. Members: Espiritu‚ Ian Timothy Ecube‚ Lynn Kristine Magangcong‚ Ahlya Oliman‚ Genie Rose Chapter 1 Introduction Bouncing ball physics is an interesting subject of analysis‚ demonstrating several interesting dynamics principle related to acceleration. Almost everybody‚ at some point in their lives‚ has bounced a rubber ball against the wall or floor and observed its motion. Normally
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Student: (Be sure to look over all your notes and be sure to know the following things) 1. Define Temperature‚ thermal energy and heat. 2. A 1.00 x 10²g mass of tungsten at 100°C is placed in 2.00 x 10²g of water at 20.0°C. The mixture reaches equilibrium at 21.6°C. Calculate the specific heat of tungsten. Cw = 4180 J/kg°C C= 171 J/kgOC 3. A certain metal has a specific heat of 400 J / kg oC. It absorbs 8000 J of thermal energy which causes its temperature to raise 10oC. How much
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The density of the golf ball in the lab is higher than the average density of a golf ball. This means that the golf ball was made for long shots in the golf course. The neutral buoyancy was successfully achieved when the molarity of the solution was 3.33M. Therefore‚ if the water hazards in golf ball courses had a higher molarity than 3.33M‚ then golf balls would float to the surface. However‚ repeated errors in the lab might have caused inaccurate calculations. For example‚ the beaker was too small
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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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LABORATORY REPORT Acceleration Due to Gravity Table of contents Objective 1 Equipment 1 Procedures 1 Recorded data‚ calculated results‚ and graphs 1 Discussion 3 Conclusions 3 Objective In this project we attempted to confirm that the acceleration
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