A2 /EXPT/THER/RON/FIONA
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To determine the specific latent heat of water using an electrical method, Ron and Fiona followed these steps: 1. They weighed the mass of water and placed it in a heat insulator with the circuit setup to pass current through it. 2. They measured the initial temperature and current, and calculated the total energy used. 3. They recorded the time taken for every 10 degree rise in temperature and used this to calculate the specific heat capacity for each time interval. 4. They took the average of the specific heat capacity values to determine the specific latent heat of water. Safety precautions were followed to prevent overheating.
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How to convert temperatures in Celsius, Fahrenheit, and Kelvin.
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ACCEPTING COMMISSIONED POWERPOINT SLIDES
ACCEPTING COMMISSIONED POWERPOINT SLIDES
ACCEPTING COMMISSIONED POWERPOINT SLIDES
EMAIL queenyedda@gmail.com
This preview may not appear the same on the actual version of the PPT slides.
Some formats may change due to font and size settings available on the audience's device.
To get/buy a soft copy, please send a request to queenyedda@gmail.com
Inclusions of the file attachment:
* Fonts used
* Soft copy of the WHOLE ppt slides with effects
- - - - - - - - - - - - -
How to convert temperatures in Celsius, Fahrenheit, and Kelvin.
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This document contains 4 exercises on physical chemistry topics:
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Temperature | Convertion of Celsius to Fahrenheit and vice versa
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Thermodynamics deals with quantities like temperature, heat, work, pressure, and volume. Heat is the random motion of particles, and temperature is a measure of how fast particles are moving on average. Heat transfer occurs through conduction, convection, and radiation. The first law of thermodynamics states that energy is conserved, so heat added equals work done plus change in internal energy. Heat engines operate in cycles to convert heat into work. Engine efficiency is defined as the ratio of work output to heat input. The second law states no engine can reach 100% efficiency. The Carnot engine is theoretically the most efficient type.
Probs5,11,17
The document provides details on two problems involving heat exchanger design and optimization. Problem 11 involves designing a condenser to condense 2000 kg/hr of vapor at 132°C using cooling water. The optimal solutions are a cooling water flow rate of 2284.58 kg/hr and an exit temperature of 106.54°C. Problem 17 requires determining the optimal exit temperature and optimal tube length but no other details are provided.
Capter 10 for 9th grade physics
This document discusses various topics relating to thermal energy and heat transfer. It begins by explaining that thermal energy is a measure of the average kinetic energy of molecules. It then discusses how temperature changes throughout the day due to the sun warming and cooling the Earth. It also explains how adding or removing heat causes the temperature of objects like a snowman and boiling water to change and reach an equilibrium temperature. The document goes on to define key terms like temperature, heat, specific heat capacity, latent heat, and thermal expansion. It provides examples and equations for calculating heat transfer and energy changes associated with temperature variations. Overall, the document provides a comprehensive overview of thermal energy concepts and quantitative relationships.
Capter 10
This document discusses various topics relating to thermal energy and heat. It begins by explaining that thermal energy is a measure of the average kinetic energy of molecules. It then discusses how temperature changes throughout the day due to the sun warming and cooling the Earth. It also explains how adding or removing heat causes the temperature of objects like a snowman and boiling water to change and reach an equilibrium. The document then defines key terms like temperature, heat, specific heat capacity, latent heat, and different temperature scales and units used to measure heat and thermal energy.
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A2/ Expt /Thermal /Kevin/ Carl
The document provides instructions for determining the specific latent heat of fusion of ice through experimentation. It outlines assembling the apparatus with an ice sample, electrical heater, and measurement devices. The procedure involves applying constant power to the heater in contact with the ice and recording the time taken to melt varying ice masses. Safety precautions are noted for handling the hot heater and cold ice. Random error is reduced by repeating trials and using a large ice mass in a cool room with precise instruments.
As /Expt/ G/Stephen
The document describes an experiment to determine the acceleration due to gravity (g) by dropping an object through a light gate and measuring the time it takes to break the light beam. The object has two interrupt sections and the time for each section to pass through is recorded. These time measurements along with the width of the sections are used to calculate velocities and substitute into equations relating the velocities, distances, and acceleration due to gravity to solve for g. Multiple trials are conducted and the average value for g is determined.
A2/EXPT/THER/KEN/AMY
Our experiment to determine Specific latent heat of fusion of ice
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AS3/ Expt-g/ Teddy
This document provides instructions for using a ticker timer to measure acceleration due to gravity (g). The ticker timer makes marks on a paper tape as a counterweight falls, allowing measurement of distance and calculation of velocity and acceleration over time. Key steps include setting up the ticker timer horizontally, attaching a counterweight, releasing it to fall, measuring distances between marks, and using the velocities to calculate g based on the change in velocity over time intervals.
AS3/ Expt-g/ Sweet
The document describes two methods for determining the acceleration due to gravity, g, which is approximately 9.8 m/s^2. Method 1 involves measuring an object's weight using a newton meter or spring balance and its mass using a balance, but is not very accurate. Method 2 involves measuring the time of an object's oscillations using a stopwatch as it swings from a known height measured with a ruler, then using the period to calculate g based on the mathematical relationship between oscillation parameters and acceleration. The document notes potential sources of error in readings.
AS3/ Expt-g/ Stephen
The document describes an experiment to determine the acceleration due to gravity (g) by dropping an object through a light gate and measuring the time it takes to break the light beam. The object has two interrupting sections and the time for each section to pass through is recorded. These time measurements along with the known distances and widths are used to derive equations that can be solved to calculate the value of g. The experiment is repeated multiple times and the results are averaged.
AS3/ Expt-g/ Sherry
1. The document describes how to use a ticker timer, which uses a vibrating stylus to make dots on paper tape to measure velocity and acceleration.
2. The procedure involves pulling ticker tape slowly through the timer while it is running to create spaced dots, then counting the dots between start and stop signals to measure time intervals.
3. The number of dots that occur in fixed time intervals like 1 second can be used to convert between dots and units of time, allowing acceleration to be calculated based on changes in spacing of dots on the tape over short time periods.
AS3/ Expt-g/ Shadow
A ticker timer can be used to measure gravity (g) by timing the free fall of a ball breaker attached to ticker tape. The device works by making marks on the ticker tape during free fall. Measurements are taken between marks to calculate distance and velocity over time, which can then be used to calculate g. Potential sources of error include unclear marks and imperfect rulers. Mounting the ticker timer vertically can reduce resistance and improve accuracy.
AS3/ Expt-g/ Sarah
The document describes six methods to measure the acceleration due to gravity, g:
1. Using a spring balance and known mass to calculate g from the force reading.
2. Timing the flow of water drops from a tap through a formula using the number of drops and time.
3. Measuring the period of a pendulum to calculate g through a formula using the pendulum length.
4. Measuring distance and time for a falling object to calculate g through the equation of motion.
5. Measuring the time and angle of a swinging pendulum to calculate g through centripetal force equations.
6. Measuring the horizontal distance and time for
AS3/ Expt-g/ Nora
1. The document describes an experiment to measure the acceleration due to gravity (g) using a ticker timer and steel balls dropped from a known height.
2. A length of ticker tape is run through the ticker timer to create a series of dots as the steel balls fall, then the tape is cut and the dots are plotted on a graph of distance vs. time.
3. By determining the gradient of the line of best fit on the graph, the acceleration due to gravity can be calculated using the equation g=2s/t^2.
AS3/ Expt-g/ Michael He
The document describes how to use a ticker time device to measure time and displacement of an object. The ticker time needs 6V and 50Hz power and makes a point every 0.02 seconds on paper attached to the moving object. To use it, one fixes the ticker time and paper to a table, turns on the power to make points as the paper is pulled, then measures the distance between points to determine displacement.
AS3/ Expt-g/ Lucifer
The document introduces 5 methods for determining the acceleration due to gravity 'g': 1) Using weight and mass measurements with balances, 2) Timing an object's fall with a stopwatch as it swings on a string of known length, 3) Dropping an object and timing its fall, 4) Using a ticker timer to record an object's motion, and 5) Using a light gate sensor in a dark room to time an object's fall. It encourages the reader to try different methods and was written by Lucifer, who hopes to earn a high mark.
AS3/ Expt-g/ Lekia
1) The document describes an experiment to determine the acceleration due to gravity (g) using a ticker timer and ball breaker.
2) The experiment involves releasing a ball breaker from the ticker timer multiple times and measuring the distance traveled over time to calculate the acceleration.
3) The acceleration values found from each trial are averaged to determine the final value of g.
AS3/ Expt-g/ Joy
A ticker timer can be used to measure gravity (g) through a falling object experiment. The experiment involves setting up a ticker timer with ticker tape to record points as a ball breaker falls freely from rest. Distances between points are measured to calculate velocities and acceleration due to gravity. Multiple trials using different weighted ball breakers allows an average value of g to be determined. Sources of error include unclear points on the ticker tape and imperfect measurements. An alternative vertical setup of the apparatus may reduce resistance and improve accuracy.
AS3/ Expt-g/ Jessica
The document describes a method to determine the value of g (acceleration due to gravity) using a ticker timer system. The method involves:
1. Setting up a system with a ticker timer that marks dots on a falling paper tape at regular time intervals.
2. Allowing the paper tape to fall freely and marking dots at 0.02 second intervals.
3. Calculating the average acceleration between dots spaced 0.1 seconds apart using the formula a=(change in velocity)/(change in time).
4. Taking the average of several such acceleration measurements to determine the value of g.
AS3/ Expt-g/ Gloria
This document discusses methods for measuring the acceleration due to gravity, g. It describes using a two pan balance to measure the mass of 10 balls to determine differences in mass, and a spring balance to measure the weight of the same 10 balls to determine differences in weight. The value of g is then calculated using the formula g = W/M, with the measured value being 9.8 m/s^2. Other measurement methods mentioned include falling objects in water and period and resonance methods.
AS3/ Expt-g/ Dana
The document describes an experiment to measure the acceleration of free fall (g) using a light sensor. A steel ball is dropped and the time it takes to fall a known height (h) is measured using light sensors and a timer. The acceleration due to gravity, g, can then be calculated using the equation g = (2h)/t^2, where t is the measured time. Sources of error are also discussed, including systematic errors from equipment calibration and random errors from air resistance and uncertainties in height measurements.
AS3/ Expt-g/ Cookie
This document describes an experiment to measure gravity using a ticker timer, paper tape, and heavy hammer. The ticker timer is fixed to a stand and records dots on the falling paper tape. The dots are measured and used to calculate the acceleration due to gravity. Repeating the experiment provides multiple data points that are analyzed to determine gravity within an acceptable margin of error. This simple method provides a reliable way for physics labs to measure the force of gravity.
AS3/ Expt-g/ Cally
This document describes an experiment to measure acceleration using a ticker timer. The experiment involves placing a trolley attached to weights on a board with a fixed pulley. A ticker tape is placed behind the trolley and over the ticker timer. When power is applied, the trolley moves and the ticker tape records the distance traveled over time. By measuring the distance and time intervals on the ticker tape, the speed and acceleration of the trolley can be calculated.
AS3/ Expt-g/ Boren
This document provides instructions for performing an experiment to determine the number of g using a linear air track, trolley, light gates, and other equipment. The experiment involves measuring the acceleration of a trolley down an inclined air track for different angles of inclination and using the measurements to calculate g. Measurements of time and distance are taken between two light gates as the trolley moves down the track from rest. The acceleration is then calculated and related to the angle of inclination using the equation a=g sinA to determine the value of g.
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A2 /EXPT/THER/RON/FIONA
- 1. To identify the specific lantent heat of water by electric method Ron & Fiona
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