EXPERIMENT 2 Measurement of g: Use of a simple pendulum OBJECTIVE: To measure the acceleration due to gravity using a simple pendulum. Textbook reference: pp10-15 INTRODUCTION: Many things in nature wiggle in a periodic fashion. That is‚ they vibrate. One such example is a simple pendulum. If we suspend a mass at the end of a piece of string‚ we have a simple pendulum. Here‚ the to and fro motion represents a periodic motion used in times past to control the motion of grandfather and cuckoo
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Rocks are classified in order to communicate information about them. All classifications of limestones are arbitrary and they frequently overlap or do not fit ones particular needs. Since binocular microscopes or hand lenses are the tools that are commonly available to the explorationist‚ a practical classification should be based on descriptions using them. When these instruments are used‚ it is usually possible to identify the individual grains forming the rock. Thus most classifications require
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victim. In areas of limited diversity‚ where one ethnicity is prominent as the clear majority‚ identifying the remains of a victim that was in a minority racial group would narrow the search parameters drastically. Resulting in a quicker positive identification of the remains. In the case of John Wayne Gacy‚ 33 victims were recovered from under and around his house. It is believed that some relatives of victims were unwilling to come forward and ID victims due to the alleged homosexual nature of the
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Table 2: Temperature measurements. Water Temperature (°C) Temperature (°F) Temperature (K) Hot from tap 42c 107.6f 315 k Boiling 99 c 210.0 f 372 k Boiling for 5 minutes 100 c 212 f 373 k Cold from tap 18 c 64.4 f 291 k Ice water – 1 minute 10 c 50 f 283 k Ice water – 5 minutes 5 c 41 f 278 k Data Table 3: Mass measurements Object Estimated Mass (g) Actual Mass (g) Actual mass (kg) Pen or pencil 5g 5.1 g .0051 kg 3 Pennies 9g 8.1 g .0081 kg 1 Quarter 5g 5.6 g .0056 kg 2 Quarters‚ 3 Dimes
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Virtual Lab: Enzyme Controlled Reactions Worksheet 1. Which of the following does NOT apply to an enzyme: b. Inorganic 2. When an enzyme catalyzes a reaction: a. Substrate(s) bind in the active site 3. Which of the following would interfere most with the ability of an enzyme to catalyze a reaction? a. Reduced concentration of substrate available 4. Feedback mechanisms regulate the rate of enzyme activity‚ effectively “turning off” an enzyme in a reversible way until more product is needed
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Rocks and minerals are all around us. Earth’s crust and part of its mantle are made of rock. Rocks are made of minerals and have different properties. The properties of rocks include color‚ texture‚ luster‚ and hardness. We use rocks and minerals in many different ways. The steel in our buildings is made with iron‚ which is a mineral. The clay and glass used in our pottery and dishes are made of a mixture of rocks and minerals. We even need minerals to stay healthy‚ and we get them from a variety
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Over-involvement and Over-Identification occurs when the counselor becomes to involved with their client and essentially wants to “rescue them.” They will see too much of themselves in the client or will feel an enormous amount of grief for them and what to do everything they can to help them. In the past‚ I have done so where I’ll avoid my own issues by trying to solve someone else’s problems. They are different in a sense‚ but close enough to where if I’m not careful I may repeat a similar pattern
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in the rearrangement of molecules‚ but doesn’t affect their internal structures. When you make rock candy‚ you are creating a physical change. When sugar and water mix together‚ they are not forming a new substance‚ sugar dissolves‚ but it doesn’t disappear. So when you crystallize it‚ it still has the same chemical structure‚ the only thing that changed is the physical appearance. When we create the rock candy it will take about a week or more for it to fully form. While we do this project we hope
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Lab 2 “Separation of a Mixture of Solids Lab Report Assistant (10 points) Data Table 1: Experimental Data Grams Percent of mixture Iron (Fe) fillings 0.9 g 20 % Sand 1.2 g 25 % Table salt 1.6 g 25 % Benzoic acid .8 g 16 % Total 4.5 g 86 & Questions A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? (2 points) I proposed a magnet would be the used to remove the iron from
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Tree Identification Log 1. Abies grandis‚ Grand Fir The Grand fir is a tall stately tree that can grow up to 80 metres when mature. The leaves are flat with rounded and notched ends and are dark green and grooved on top of two white bands underneath. The seed cones are barrel-shaped and yellowish-green‚ growing upright on the branches. The bark is a smooth and greyish brown with white spots and blisters filed with gummy resin when young. The bark becomes furrow and scaly with age. The Okanagon
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