Experiment 5: Relative Density Patrick Erlo Reyes‚ Joseph Winfred Sajul‚ La Reyna Roshele Salenga‚ Luisito Jeremiah Samonte‚ Christine Bernadette Sanchez Department of Biology College of Science‚ University of Santo Tomas España‚ Manila‚ Philippines Abstract This experiment is concerned with the densities of objects. The first activity is determining the density of a cylinder through displacement method and by weighing. The second activity is finding the density of a bone and determining it whether
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Make a pendulum clock whose pendulum has a period of two seconds. Calculations shows that the length of a pendulum if this period with a fixed support would be about one meter. Make a pendulum with a yielding support. ix) Use the results from the experiment to calculate a value for d that would give a period of two seconds for the pendulum used. x) Use your answer to (ix) to suggest whether the use of a yielding support would save space. Theory
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The Effects of Environmental Stimuli on Animal Behavior AP Biology Emily Olsen April 26‚ 2012 I. Introduction: The purpose of this lab is to test the effect certain stimuli has on the behavior of a terrestrial isopod. These bugs are more commonly known as pill bugs and potato bugs. The objective of this experiment is to determine which kinds of habitats potato bugs favor. Potato bugs have an innate behavior called taxis which will cause the animal to move away from a stimulus that is unwanted
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Arlind Mara Paper Towel Lab Report AP Biology 15 September 2011 Which Towel is The Quicker-Picker Upper! To determine which of the most popular paper towel brands such as Bounty and Marcal would be the Quicker-Picker-Upper I conducted the following experiment during which I dipped 6in X 6in squares of paper towels into 100mL and measured the amount of water absorbed by the towels in 20 seconds. After averaging all 3 trials for the paper towel brands that I tested I arrived to the conclusion
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spin‚ she will put her arms out away from her body to create a slow spin. As she tucks her arms in‚ she will spin much more rapidly. By moving her mass closer to the axis‚ she reduced her moment of inertia. Many practical applications for this experiment exist. Car manufacturers study it carefully to determine how quickly a car will spin out of control. Here‚ a higher moment is created such that the car is less likely to lose control in a spin. Many sports also use the concept‚ as in the example
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higher resolution and more light‚ you need to put more than one mirror together and make them work together‚” explains Robert Angel‚ a professor of astrology at the University of Arizona (Giant Mirrors to Capture the Universe). Just as we learned in our lab‚ we need a good source of light for something to become clear. The mirrors that are used for the telescope cause the light to be reflected off of one mirror onto the other which then create a clear image from the large convex lens. “Because these
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Lab #1: Projectile Motion Purpose: To determine experimentally the initial and final velocities of an air powered projectile. Hypothesis: If the angle of the rocket is launched at 45 degrees than the distance and velocity will maximize. Materials: Rocket launching platform Rocket launcher Rocket body Air pump Safety goggles Rubber washer Nose cone 40‚ 45‚ 50‚ 55 and 60 angle wooden blocks Measuring wheel Procedure: 1. The rocket was assembled by the rocket launcher
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static friction | Average peak static friction(N) | | | Trial 1 | Trial 2 | Trial 3 | | .0835kg | .82N | .59 | .50 | .53 | .54N | .3335kg | 3.3N | 1.7 | 1.26 | 1.42 | 1.46N | .5835kg | 5.7N | 2.19 | 2.91 | 2.45 | 2.516N | .8335kg | 8.2N | 4.1 | 3.34 | 3.78 | 3.74N | 1.0835kg | 10.63N | 5.14 | 3.94 | 4.06 | 4.38N | Total mass(m) | Normal force (N) | Kinetic friction | Average kinetic friction(N) | | | Trial 1 | Trial 2 | Trial 3 | | .0835kg | .82N | .238 | .26 | .249 | .249N
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Height of Ball Drop v/s The Depth of the Crater | By Tejas Shah‚ IBDP Year 1 | | | | | | | * Aim- To find the relationship between the depth of crater and the height from which it is dropped. * Research Question- Does the height from where the ball is released affect the depth of the crater. * Hypothesis- If we increase the height of the drop of the ball; the depth of the crater would increase. This is because as there is loss in potential energy subsequently there
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DCP CE lab report for thermal physics Jeff Raw data collection: temperature (K)±1K | length (cm)±0.05cm | diameter(cm) ±0.05cm | volume(cm^3) | uncertainty for volume | 342 | 7.3 | 0.28 | 0.449271 | 0.163531 | 338 | 7.0 | 0.28 | 0.430808 | 0.156937 | 336 | 6.7 | 0.28 | 0.412345 | 0.150343 | 334 | 6.3 | 0.28 | 0.387727 | 0.141551 | 331 | 6.1 | 0.28 | 0.375418 | 0.137155 | 329 | 5.9 | 0.28 | 0.36311 | 0.132759 | 326 | 5.5 | 0.28 | 0.338492 | 0.123967 | 325 | 5.4 |
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