In order to figure out what the mass was, the weight of the cylinder (42.16g) subtracted by the weight of the cylinder by itself (37.85g). Lastly, the Density of the water needed to be calculated. In order to determine density, use D=M/V and the density was written down. Next, the density of the mineral oil was taken. In order to figure out the density of the mineral oil 3 mL of water was poured into the second 10 mL graduated cylinder along with 3 mL of mineral oil and was weighed.
For first harmonic, our wavelength was 1.200 m, found by the formula λ=2L/n. In the second part we used tension and velocity to find mass density. For the first notch, with a tension of 10.3 N, the velocity was 86 m/s with a overall mass density of 0.018. Discussion In the lab we wanted to find the frequency at which resonance occurs on a stretched wire as well as look at the relationship between the frequency of vibration and tension and linear mass density of the wire. For the first procedure, we increased the frequency until we found resonance, and recorded frequencies and nodes to calculate wavelength.
Lab Report Name: Lab#: 6 Lab Name: Determining the Speed of Sound Objective: The objective of this lab was to learn how to measure the speed of sound. Procedure: A glass 17 cm tall was filled with water. The water was then measured with a thermometer to ensure that it matched the room’s temperature. The PVC pipe was then placed in the water, and the tuning fork was hit against a wooden block. The fork was held horizontally over the pipe and the pipe was moved up and down in the water.
Which of the following diagrams best represents the directions of the actual forces acting on the box as it moves upward after the push? 3. An ideal spring obeys Hooke's law, F = kx. A mass of 0.50 kilogram hung vertically from this spring stretches the spring 0.075 meter. The value of the force constant for the spring is most nearly (A) 0.33 N/m (B) 0.66 N/m (C) 6.6 N/m (D) 33 N/m (E) 66 N/m 4.
The following equation represents this relationship where k denotes the spring constant or stiffness of the spring, F=-kx Since x symbolizes the displacement or change in the length of the spring the above equation can now be surmised in the following manner, F=mg=-k∆l This new form makes it evident that a linear proportion exists between the plot of F as function of changing in length, ∆, thus confirming the spring does in fact obey Hooke’s Law. This enabled the group to determine the spring constant k. B. Derivation of Equations Definitions To gain a better understanding of the terms used here
Physics Lab Report: Popper Hopper. Purpose: The purpose was to find the speed of a hopper popper as it leaves the table. Materials: The materials used were a timer, ruler and a popper Procedure: I put the popper on the table. When it popped up in the air i looked how high it went up and how long it took. Data: |Trial # | | |4.5 secs |52 cm | |3.1 secs |90 cm | |2.8 secs |84 cm | |1.3 secs |74 cm | |.8 secs |65 cm | Calculations & Data Analysis: Given: mass = .0102 kg, height = .73 m, g= 9.8 m/s Unknown: velocity?
Friction Objectives: To provide an understanding of the concept of friction. To calculate the coefficient of friction of an object by two methods. Materials: Ramp board: 3 - 4 feet long, 10 cm wide Can of soft drink or item of similar weight Friction block set-PK Protractor Scale-Spring-500-g Tape measure, 3-m Lab notes: Using the wooden block provided in LabPaq, a long board, a can of beans and the 500-g spring scale I will try and determine the force of kinetic friction, N, and the force of static friction, N while pulling the block at a constant speed. I will convert kg-mass to Newtons by multiplying the kg-weight by 9.8 m/s2, i.e., 100 g = 0.1 kg = 0.1 x 9.8 = .98 N. Observations: Mass of block (with can): 3995 kg Weight: 3.91 N Data Table 1: Flat board Flat board Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.1 0.6 Trial 2 1 0.7 Trial 3 1 0.9 Average 1.03 0.73 Data table 2: Flat board - Block Sideways Mass of block (with can) 3995 kg Weight: 3.91 N Flat Board - Block sideways Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.3 1.4 Trial 2 1.1 1.5 Trial 3 1.1 1.1 Average 1.2 1.5 Data Table 3: Different surfaces Surfaces tried: Glass surface Force of Kinetic Friction, N Force of Static Friction, N Trial 1 0.4 0.1 Trial 2 0.4 0.1 Trial 3 0.4 0.2 Average 0.4 0.13 Data Table 4: Different Surfaces Surfaces tried: Sandpaper Force of Kinetic Friction, N Force of Static Friction, N Trial 1 2.2 1.5 Trial 2 2.1 1.7 Trial 3 2 1.1 Average 2.1 1.43 Data Table 5: Different Surfaces Surfaces tried: Wood on Carpet Force of Kinetic Friction, N Force of Static Friction, N Trial 1 1.4 1.9 Trial 2 1.5 1.6 Trial 3 1.5 1.7 Average 1.47 1.73 Data Table 6: Raised Board Height Base Length θ max μs Trial 1 .44196 m .71120 m 60 deg 0.62143 Trial 2
Abstract Sliding filament theory of muscle contraction suggests existence of an optimal muscle length associated with maximum stimuli-generated tension. This hypothesis is tested in vitro by measuring muscle tensile response to fixed voltage stimulations under length alterations of the gastrocnemius of Xenopus laevis. Muscle length is mechanically varied by shrinking or extending and an attached force transducer records the tension generated by the fixed stimuli. Our results indicate greatest tensile response of about 3.2 N when muscle length is 30 mm. The response diminishes as deviations from this optimal length increases.
This is just to avoid the hot steel damaging the table. Now turn the fan on and face it towards the block of steel. The fan will cool the steel down. Using the digital thermometer record the temperature of the block of steel every minute. These temperatures are the actual temperature.
The weigh get heavier, the faster the punk goes. Experimental design In this experiment, the acceleration of the punk was measured with a timer and will make dots on the paper. By using different mass of weight, to calculate how does the mass affect the acceleration. Variables: Independent var. the mass of the weight dependent var.