Thursday, March 19, 2020

Egg Drop Essay Essays

Egg Drop Essay Essays Egg Drop Essay Paper Egg Drop Essay Paper In our physic class we did an egg drop experiment. We used some vocabulary words to answer the question also did formulas to solve some problems. The question that we are referring to is will an egg break or be secured. Our idea was to secure the egg from breaking and we wanted to design something that would provide a lot of cushioning directly on the egg. So we came up with many different ideas until we chose the one that would fit right in with our ideas. The way we used our ideas to come up with his amazing egg drop project was first we found a capsule that would absorb energy rather then bell it with more force. We got a soft NEAR football, cut it into half. Then we cut out some space to fit the egg and tired back together with lawn string, but before putting it back together we covered the egg with one piece of paper towel sot that It will be a little secured. After finishing up the project we did a test run to see if it works without the egg breaking and it worked out perfectly the way we wanted it to be. When we finished testing our hypothesis came out to be that the football absorbs the shock and doesnt let the egg feel the shock of it dropping. Last step to our experiment was the calculations and the formulas. For this project we used about three formulas and they were the gravitational potential energy, kinetic energy also the force = mass* accelerations. Before we start explain I will let you know that the height where the egg is been dropping is 1 1. 5 meters. Therefore the reason why we used the gravitational potential energy and kinetic energy was because when the egg is dropped from some height the gravitational potential energy of the egg is conserved. After calculating the formula for kinetic energy we found out hat the velocity or how the speed is increasing as it drops is 15. 1 m/s. Then we used the f=ma and in that formula we already knew what are acceleration was and it was 9. 8 m/s and the mass after weighting the football it was .

Tuesday, March 3, 2020

Biology Lab Safety Guidelines

Biology Lab Safety Guidelines Biology lab safety rules are guidelines designed to help keep you safe while you are experimenting. Some equipment and chemicals in a biology laboratory can cause serious harm. It is always wise to follow all lab safety rules. Dont forget, the most helpful safety rule is to use plain old common sense. The following biology lab safety rules are a sample of the most basic rules that should be followed when in a biology lab. Most labs have the safety rules posted in a visible place and your instructor will most likely go over them with you before you begin working. 1. Be Prepared Before you enter a biology lab, you should be prepared for and knowledgeable about any lab exercises that are to be performed. That means you should read your lab manual to know exactly what you will be doing. Review your biology notes and relevant sections in your biology textbook before your lab begins. Make sure you understand all procedures and purposes, as this will help you understand the lab activities you will perform. It will also help you get your thoughts organized for when you have to write your lab report. 2. Be Neat When working in a biology lab, make sure you keep your area neat and organized. If you happen to spill something, ask for assistance when cleaning it up. Also, remember to clean your work area and wash your hands when you are finished. 3. Be Careful An important biology lab safety rule is to be careful. You may be working with glass or sharp objects, so you dont want to handle them carelessly. 4. Wear Proper Clothing Accidents do happen in a biology lab. Some chemicals have the potential to damage clothing. With that in mind, you want to make sure that the clothing you wear is something you could do without if it becomes damaged. As a precaution, wearing an apron or lab coat is a good idea. You will also want to wear proper shoes that can protect your feet in case something gets broken. Sandals or any type of open-toed shoes are not recommended. 5. Be Cautious With Chemicals The best way to remain safe when dealing with chemicals is to assume that any chemical you handle is dangerous. Be sure you understand what type of chemicals you are using and how they should be properly handled.If any chemical comes in contact with your skin, wash immediately with water and inform your lab instructor. Wear protective eyewear when handling chemicals, which brings us to the next rule. 6. Wear Safety Goggles Safety goggles may not be the most fashion-forward accessory and can fit awkwardly on your face, but they should always be worn when you are working with chemicals or any type of heating apparatus. 7. Locate Safety Equipment Be sure you know where to find all safety equipment in the biology lab. This includes such items as the fire extinguisher, first aid kit, broken glass receptacles, and chemical waste containers. Also be sure you know where all the emergency exits are located and which exit route to take in case of an emergency. 8. Biology Lab Donts There are several things in a biology lab that you must always avoid- here are a few major laboratory donts. Do Not eat or drink in the labtaste any chemicals or substances you are working withuse your mouth for pipetting substanceshandle broken glass with bare handspour chemicals down the drain without permissionoperate lab equipment without permissionperform your own experiments unless given permissionleave any heated materials unattendedplace flammable substances near heatengage in childish antics such as horseplay or pranks 9. Have a Good Experience Biology lab is an important aspect of any general biology or AP biology course. In order to have a good lab experience, make sure that you follow these biology lab safety rules and any instructions given to you by your lab instructor.