3 Question 1 (Marks: 20) On a straight‚ flat section of road‚ a car follows a truck. Initially (t < 0)‚ both are travelling at speed v0 = 90 k.p.h. The truck maintains constant speed throughout. The car is initially 2.0 seconds behind the truck‚ i.e. for t < 0 the car
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The Hot Tub Mystery Part 1 – The Discovery Questions 1. What observations did the paramedics make? Upon discovery and close investigation on the crime scene‚ the paramedics made am inquisitive observation due and do took notice of the temperature of the water in the hot tub. 2. List the questions raised about this situation or that you think that the investigators should ask of the maid. Since the maid was the only person who is discovered in the crime scene
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“Is Density An Intensive Property Of Matter?” By: Mikal Hayden - Gates A. Introduction The first unit we learned in chemistry was Alchemy. In this unit I learned about the extensive and intensive properties of matter. An extensive property is a property of matter that depends on the changes of the substances shape or amount. An intensive property is a property of matter that doesn’t depend on the substances shape or amount. The purpose of this investigation was to prove that density is
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Eric Wu 117 Experiment 1.6: Determination of Density Abstract: The purpose of the experiment was to determine if density is an intensive or extensive property of matter. The experiment proves that density is an intensive property. The density of an object remains the same no matter how much of it is present. The density is an intensive property because mass and volume changes at the same rate. Introduction: This experiment was designed to determine if density is an intensive or extensive
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Suppose you live in a new suburban community. It offers all the amenities and benefits of a tight-knit small community‚ with the benefits of living close to the big city. Some years pass‚ and several children and adults in the community start developing extensive and similar illnesses. You think this is clearly not a case of genetics‚ and become suspicious that something must have gone wrong in the development planning and execution of your community. You start researching and investigating possible
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Determination of specific heat Capacity of a solid by electrical method Introduction Thermal conductivity heat is transferred as a consequence of temperature difference between 2 bodies‚ heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius‚ different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the
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Specific Heat Lab Objective: Find the specific heat of the unknown metal given using calorimetry. Background Theory: In every reaction‚ energy is transferred between a system and its environment. A system encompasses the substances that are involved in a reaction‚ and everything else in the universe other than the system is called the environment. The standard SI unit of energy is Joules (J). Temperature is the level of excitement of the atoms in a substance. In most cases‚ energy is
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STAGE 1 PHYSICS ASSESSMENT TYPE 1: INVESTIGATIONS FOLIO PRACTICAL INVESTIGATION 2: SPECIFIC HEAT PURPOSE This assessment provides the student with the opportunity to demonstrate their ability to: formulate hypotheses and identify variables conduct an investigation collect‚ analyse and interpret data‚ and form conclusions evaluate results communicate your understanding of the physics concepts relating to the speed of sound in air DESCRIPTION OF ASSESSMENT Students will measure the
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How can the specific heat capacity of water be used to regulate temperature? Specific heat capacity is the amount of energy needed to increase the temperature of an object by 1˚C. The formula that uses specific heat is Q = mc∆T‚ where Q is heat energy‚ c is specific heat‚ and ∆T is the change in temperature. The amount of heat energy depends on the mass‚ or the size of an object‚ and the specific heat capacity‚ which depends on the substance it is made from. The specific heat capacity of water is
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Specific Heat of a Metal Post-Lab I. Purpose The purpose of this lab is to determine the specific heat of an unknown metal. II. Safety Wear goggles and lab apron at all times. Use caution when boiling water. Do not pick up hot beaker or hot metal with hands. Use tongs. III. Pre-Lab Questions 1. A 12.5 g metal is raised to 100C in boiling water. It is put into 82.8 g of water at 22.4C‚ and the water rises to 28.6C. Recalling that the specific heat of water is 4.18J/gC‚ use the equation above
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