Roger Truong Week 4 Physics Notes Experiment 1 * Rise and fall is pressure in the sound wave makes the flame move * The rise and fall in pressure makes the click sound * The rise and fall in the disturbance to what brings the sound to your ear * The square waves to what makes the flame move and bring the sound to your ear * The air molecules don’t move the disturbance does * For a 0.5 Hz your hear a click and the flame moves and resets * For 100 Hz the flame remains
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Physics pre-assessment research task 1. Describe de Broglie’s proposal that any kind of particle has both wave and particle properties De Broglie suggested that if light can behave as both a wave and as a photon, particles could also have dual character. He proposed that all particles had wave properties as well as particle properties. He proposed that the wavelength is inversely proportional to the momentum of the particle, now known as the de Broglie wavelength of a particle and given by,
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1 ) Explain how kinetic energyand potential energy determine the properties of the three states and phase changes, what occurs when heat is added or removed from a substance and how to calculate the enthalpy change. Answer In a gas, the potential energy (energy of attraction) is small to the kinetic energy thus, on average, the particles are far apart. This large distance has several macroscopic consequences : a gas fills its container, is highly compressible, and flows easily through another gas
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| UVA (mw/m2) | UVB (MW/m2) | | | IO | 59 | 263 | | | | | | UVA | UVB | Color | Thickness | | Average Attenuation Coefficient | Average Attenuation Coefficient | Green | 0.12 mm | 0.205 mm | 1661/m | -143. 9/m | Maroon | 0.13 mm | 0.25 mm | 1356/m | 1681.231 /m | Activity 1: Table 1:Initial Intensity In this activity, we measure first the initial intensity of UVA and UVB without the umbrella. We also measure for the thickness of two umbrellas, choosing the green and maroon
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Figure 2: Stress- strain graph The stress strain relation dependent on time and time-depending behavior of materials is known as visco-elasticity. This term derived in two expressions: Viscosity and Elasticity, Elasticity is about solid whereas Viscosity resistance to flow in fluids. Therefore, this type of material is a combination of fluid and solid properties which presents a following relation
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Simon sometimes tastes or senses the medication in his food and spits them out, but sometimes the medication goes undetected. He always wonders why he feels tired most of the time without doing any activities that may cause such feelings. Covert medication is described by Kala (2012, p. 1) as, ‘the practice of hiding medication in food or beverages so that it goes undetected by the person receiving the medication.’ Latha (2010) states that covert medication is one of the greatest challenges for healthcare
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Density Lab: Look at two sample cylinders. Even though the cylinders are the same size and shape, one has a greater mass than the other. Both cylinders are solid and are not hollowed out anywhere inside. 1. Look at the drawing of the copper and aluminum cubes and their atoms. What are two possible explanations for why a copper cube has a greater mass than the aluminum cube? Hint: Just because the aluminum atoms are larger, they are not necessarily heavier. Explanation 1: Explanation
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D. Specific Gravity * Procedure: I borrowed a refractometer from the counter and held it in a horizontal position and placed a small amount of urine on the capsule with the support of a dropper, then I looked into the scope of the refractometer to see the measurement of the specific gravity of the urine sample. * After doing the experiment, I threw the urine in the toilet and cleaned the container that I used to put the urine Objectives: -To find the specific gravity of the urine sample
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Refraction and Reflection People often wonder why it is that when looking at fish in an aquarium, the fish seems to suddenly change to a different position as we look at them from different viewpoints. What makes Diamonds seem to sparkle so much, or even when a straw is inserted into a glass it looks tilted or at an angle. All of these questions has the same answer and are all examples of Refraction, Refraction is the change in direction of light as it changes speeds passing from one material into
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finding ways to make existing technology smaller or more efficient. This is especially apparent in electronics, where a constant push is made to make devices smaller, lighter, and more powerful. Acoustic charge transport (ACT) is a relatively new concept and technique which has applications in both electronics and optoelectronics, which uses light instead of electricity. Not only does ACT have applications in these areas, it has distinct advantages by being smaller and more efficient than currently
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