Pendulum Lab

Procedure: Using distilled water, premeasured containers and objects determine displacement of fluids and density of objects. Use ice and heat measure temperatures in Celsius, Fahrenheit and Kelvin.

Table 1 we see that the numbers are relatively the same, because the law of conservation momentum principle the total momentum before the collision equals the total momentum after and we see this in the data.

I. Determining Density and Specific Gravity Robert Dessoye Mohaymenul Islam 115 Started: 9/26/14 Due: 10/2/14 II. Introduction a.

At first I was unsure on how these were different but after using the lab program and following the instructions I can now see that different balances are needed for difference situations. Some that may require a more precise measurement where as others may not need such accurate measurements.

How does light bend? In science, we have created a lab with the purpose, to see how light behaves when it passes through various mediums. Our problem at hand is to sneak past the laser security in the White House to kidnap Donald Trump. What we will be doing in this lab is shining a ray of light from air to water at 30 degrees, then measure the intensity. Next we will switch the mediums from air to glass, and repeat the same process. Last, switch the mediums from water to air (and repeat). Our hypothesis is, if we can find a object to bend the light around us then we will be able to sneak past security. Using a computer simulator, we proceeded with our experiment and took a look at the angles, the speed, the wavelength and the intensity of light. Here’s what we found.

* Paying more attention to levels of fitness and physical capability is important. The choice of subjects should have been more selective in that regard to make the results less about different levels of fitness and more about boy vs

Why do some pendulums swing faster than others? Some pendulums swing faster than other due to only the length of the string.

Equilibrium 7022 April 24th 2015 CHM 2046 – 032   Introduction Equilibrium is the state where the concentrations of the reactants and products are equal, or unchanging . By adding more of a product or reactant can change the direction of the reaction, altering the equilibrium of the reaction (Tro). The equilibrium constant (K_eq) is a ratio of the concentrations of products over the concentrations of reactants (Tro). The equilibrium constant helps to quantify the extent to which direction the reaction is favoring. If the equilibrium constant is greater than 1, the reaction highly favors the production of the products (a forward reaction), and if the equilibrium constant is less than 1, the reaction highly favors the production of

For the middle segment, it is seen that the piece started out being 4.9 mm. After one day, the piece grew 0.1 mm. The piece stayed approximately the same size until Day 4, where it grew to 6 mm. No gradual changes were seen between Days 1 and 3. The size of the middle segment changed again on Day 6, where it was 6.1 mm. The segment was the same size for the next 2 days. The middle segment grew to 6.2 on Days 9 and 10 (Figure 1). Overall, the segment grew 1.3 mm.

In our third lab, we experimented with the cohesive forces of surface tension. Water and pepper were combined. Soap was applied into a hole in a boat. The boat had a keyhole slit extending from the hole. The soap reduced the surface tension. The molecules spread out in all directions from the soap, but they could only travel through the keyhole slit in our boat. They traveled backward, but a force pushed forwards, propelling our boat forward. Newton’s Third Law states for every action there is an equal and opposite reaction. So, for the molecules escaping behind the boat, an equal and opposite force pushed the boat forwards.

Edgar Allan Poe uses imagery to set the mood and to place an image in his readers’ minds of what the narrator is going through. In the “Pit and the Pendulum” the narrator is sentence to a pit as punishment for practicing another religion. Edgar Allan Poe describes, “The blackness of eternal night compassed me. I struggled for breath. The intensity of the darkness seemed to oppress and stifle me. The atmosphere was intolerably closed” ( ). The narrator is describing that his surroundings are unable to make an image out of because of deep darkness of the pit. The dark setting sets a creepy and uncertain tone of the area. The narrator is put in the pit as a process of slow torture, but with the same results. A pitch black setting causes the

Why is the parcel now warmer than it was at sea level on the windward side (what is the source of the heat energy)?

In this lab, the possibility of experiencing sources of was extremely high as pushing a car and calculating the acceleration easily invited interference in otherwise perfect results. It can be proven that there were multiple sources of error by the slope of the equation on the ‘Force vs. Acceleration’ group for this lab. While the slope of the linear trend line was 4084.798, the actual mass of the van and Mr. Simmons combined was 2450 kg. These sources of error include human error such as not keeping the acceleration constant, changing the force placed on the van, and by starting or stopping the timer late. In our lab, some pairs would start and stop in order to remain at the correct number of pounds on the vehicle; therefore, the car had inconsistent acceleration and the data did not accurately reflect the constant rate.

This lab demonstrated qualities of standing waves with great help from a mechanical vibrator, a sine wave generator, and a piece of string. Through this lab we were able to understand how to calculate the speed of a wave on a string. A standing wave is defined as a wave that travels forward, then is reflected creating nodes (regions with minimal to zero energy).

This could be prevented if the person who is counting the oscillations also times them themselves.