Background Information Part 1 In the first part of the enzyme lab‚ we mixed a substrate and an indicator with an enzyme. There was also a neutral buffer in each of the chemical mixtures. The neutral buffer regulated the pH to around 7. We got a color palette and once we mixed each together‚ we observed and saw a change in the color of the substance. The darker and more brown the substance got‚ the more oxygen produced by the reaction. Our results showed that amount of oxygen produced increased
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Activity Lab #4 : Non-Uniform motion Design Aspect 1 * Problem: What is the acceleration of the puck in the air table? Aspect 3 Material List: * Strip of Paper * Puck * Foot pedal * Air table * Procedure: 1) Place a long sheet of white unlined paper‚ and place it on the air table. 2) Turn on the air table machine. 3) Place the puck top of the air table over the long sheet of white unlined paper 4) Using your foot‚ press down on the foot pedal. 5) Release the
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does not brake). The direction of the velocity vector is changing. A force is required in uniform circular motion.Centripetal Force & AccelerationSince an object in motion will travel in a straight line (Newton ’s First Law) an force must be required to accelerate the mass . This force does not cause a change in velocity as stated in the introduction‚ but rather it is responsible for the change in direction. The centripetal acceleration (ac) is equal to the square of the velocity (v) over the
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Centrifugal force Centrifugal force (from Latin centrum‚ meaning "center"‚ and fugere‚ meaning "to flee") is the apparent outward force that draws a rotating body away from the center of rotation. It is caused by the inertia of the body as the body’s path is continually redirected. In Newtonian mechanics‚ the term centrifugal force is used to refer to one of two distinct concepts: an inertial force (also called a "fictitious" force) observed in a non-inertial reference frame‚ and a reaction force corresponding
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science ABN 54 406 994 557 (02) 6583 4333 PO Box 2575 PORT MACQUARIE NSW 2444 FAX (02) 6583 9467 www.keepitsimplescience.com.au mail@keepitsimplescience.com.au keep it simple science Photocopy Master Sheets Years 7-8 FORCES Disk filename = “02.Forces” Copying is permitted according to the Site Licence Conditions only 1 Site Licence Conditions Our product is supplied on CD • You may copy the CD for back-up only. • You may store the CD contents in data retrieval systems
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Figure 3 Superoxide radical scavenging activity. Values are mean ± SEM (n = 3). ABL‚ lyophilized aqueous extract of A. bilimbi fruits; ABP‚ petroleum ether fraction of ABL; ABE‚ ethyl acetate fraction of ABL; ABB‚ butanol fraction of ABL; ABW‚ aqueous fraction of ABL; QU‚ quercetin. 3.3.5 Nitric oxide radical scavenging activity Lyophilized aqueous extract of Averrhoa bilimbi fruits (ABL) and its different solvent fractions exhibited a dose dependent inhibition of nitric oxide radicals. The IC50
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TEMPERATURE ON CATALASE ACTIVITY AIM The aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide. This will enable us to tell at what temperature hydrogen peroxide is most efficient. This (degradation) reaction will help us determine some of the catalase’s different attributes. HYPOTHESIS In this experiment it would be safe to hypothesise that no activity would take place at 1 to 20 degrees. It would be probable that a little activity would take place around
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Optical Activity of Carvones Kyle Peterson Chem. 243a Matt Judd‚ Sec. 25 Date Performed: 10/29/03 Abstract: The objective of this experiment is to use Gas Chromatography to distinguish between two enantiomers of carvone from caraway oil and spearment oil and to find the 2 carvone’s optical activity as well as percent carvone in spearment and caraway oil. It was found that S-carvone had an optical activity of 0.0047 and R-carvone had an optical activity of 0.516 and that spearment oil is 59%
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Chapter 2 Forces To study the effect of forces acting on particles. 2.1 Equilibrium of a Particle 2.2 Free Body Diagram 2.3 Force Vectors 2.4 Forces in a Plane 2.5 Forces in Space Expected Outcomes • Understand the condition for a particle to be in static equilibrium • Able to construct free body diagrams • Able to solve for the forces acting on a static particle 2.1 Equilibrium of a Particle www.classical.com/features 2.1.1 Condition for the Equilibrium of a Particle
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ACTIVITY 1.3 America’s Promise LEARNING STRATEGIES: Learning Targets Previewing‚ Marking the Text‚ Think-Pair-Share‚ SOAPSTone Before Reading 1. The Statue of Liberty has long been a welcoming figure to the millions of immigrants who have come to the United States of America. What feelings or thoughts do you think people might have when looking at the Statue of Liberty for the first time as a new arrival to this country? Source: “An ocean steamer passing the Statue of Liberty:
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