9. Record observations for each hyphal tip in table such as the one below but do one for each hyphal tip and for two different slides. Calculate the speed of growth using s=distance/time. Table 2: Hyphal Tip with Growth Medium (Slide 1) Time(minutes) | Distance (um) | Speed (um/min) | | 1 | 2 | 3 | 1 | 2 | 3 | 5 min | | | | | | | 10 min | | | | | | | 15 min | | | | | | | 20 min | | | | | | | 10. To determine if hyphae grow at the same rate, graph the results of table 2 and compare the slopes of the 3 hyphae from the slide preparations.
Wait 90 seconds for the light source to warm up, then fill a cuvette with distilled water and clean the flat, clear sides on the cuvette with a Kimwipe, removing dust and fingerprints before putting the cuvette into the instrument. Orient the cuvette so that the clear sides line up with the white arrow on the top of the spectrometer. Click “Finish Calibration”, then “OK”. Next, fill a cuvette with the “yellow” sample, repeating the steps to clean the clear sides of the cuvette with a Kimwipe to remove fingerprints and dust. Place the clean cuvette containing the “yellow” sample into the spectrometer, orienting the cuvette so that the clear sides of the cuvette line up with the white arrow in the cuvette.
Next, switch the X and Y in the equation. This will leave you with x=5y+10. From this point on, solve for y, even if the y value had an x variable inside of it. We can solve for y by first subtracting 10 on each side of the equation, giving us x-10=5y. Then dividing each side by 5.
Aim: The aim of this experiment is to understand reflection and refraction and how they vary with different matters. Data/Results: The hand drawn images are attached to this lab on a separate sheet of paper. Questions: 1. Based on both of your observations on reflection, what can you say about the relationship between the angle of incidence and the angle of reflection? The angles of incidence and reflection are both the same.
Next was the ammonia test 10 drops of each metal solution were added to new centrifuge tubes and 15 M NH4OH was added until the solution changed color or a precipitate was formed. 10 additional drops of 15 M NH4OH were added and changes were recorded. For the confirmation flame test 20 drops of the metal solutions were added to centrifuge tubes. A Bunsen burner was set up using a striker to lite the flame, and a Nichrome loop was dipped in 10 mL of HCL and placed in the flame till no color was observed. Then the Nichrome loop was dipped in each tube of metal solution, (dipping the loop into HCL and in the flame after each solution) and placed in the flame and color was observed for each metal solution.
Use a protractor to measure the angle from the reference line to the lines drawn in step 6. 8. Record the angle created by the laser pointer through the air as the Angle of Instance and the angle created by the laser pointer through the water as the Angle of Refraction. 9. Use Snell's Law to determine the Index of Refraction of Water.
To measure the circumference of the disk, make a mark on the disk and place the disk on the meter stick with the mark coinciding with a meter stick reading. Roll the disk for one revolution along the meter stick to obtain the circumference. Measure and record this value. Do this for each disk. Iv .
The spectrophotometer was set for 360 nm and the mode was changed to transmittance. The zero adjustment knob and 100% adjustment knob (using the blank) adjusted accordingly. The absorbance of each sample was measured at 360 nm. The wavelength was then set to 380 nm. The absorbance of each sample was calculated again after fixing the 100% adjustment knob to read 100.
Selected valid flats and biases. Averaged the flats and biases to produce a master bias and flat. Subtracted the bias and divided the flat out of each image. Inverted the images vertically. Employed the use of Visual PinPoint in order to astrometrically reduce the images and to embed World Coordinate System data into the FITS header.
Once the results are found you can calculate the percent error of the uncertainty values. The uncertainty value is the acceleration of the ball falling down. That value will be compared to the gravity value to see how closely related they are. Introduction The formal lab “Uniform Acceleration”, studies uniform acceleration by rolling a ball down a ramp and dropping an object to calculate its acceleration. Also this lab teaches about measurement uncertainty can be calculated using the percent error equation.