Essay on Lab Technique and Measurments

because each of the objects displaced the water by 1 mL, their mass over that mL is their density.

If the water displacement increases, then the density will decrease because the mass will be divided by a higher volume causing a lower density. The independent variable is the water displacement and the dependent

From the excel chart of Molarity vs. Density, what was the relationship between the molarity of the sugar solution and the

Tip magnet upside down and observe how many nuts and bolts fall off of the magnet.

Using Gravitational Force as a Measurement Tool Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Dont forget to save your lab report to your computer Activity 1 Record your data from Activity 1 in the boxes below. Enter the data for the sample you used in each trial (5000 rpm, 10000 rpm, etc) in the appropriate columns and the corresponding g-force, number of layers, and position of layers position results. You will need to use the following formula to assist with your laboratory report G-force 0 00001118 x radius of centrifuge arm x (rpm)2 The radius of the centrifuge arm for this instrument is 10 cm. Speed 5000 rpm 10000 rpm 15000 rpm

Next, the data was recorded and was used in the formula to find the density of the 40 pennies.

During the metric measurement lab, the objective, also known as the problem statement, was to take measurements of the length, volume, mass, temperature, and circumference of different substances. In addition, we were to convert these measurements using the factor label method and complete calculations based on the measurements we took at the six different stations of the lab. Furthermore, we were directed to compare and contrast our calculations with other groups in the classroom. For station one, we were directed to calculate the dimensions of two rectangular boxes.

1. Using a metric ruler, determine the length of the items in Table 1.1 below:

Place the plastic bag on the scale. record the information on the graph for initial mass for trial 2

Measured out 2 m (+/- 0.1 cm) on the wall using the meter stick (+/- 0.1 cm) and placed the tiny piece of tape on the 2 m (+/- 0.1 cm) mark.

Calculate the area (LxW), perimeter (L+L+W+W) , volume ( LxWx H) and ratio of the tabletop using this data in both centimeters and inches. To find the ratio of volumes, the volume of the base was taken and divided into the table top volume. All measurements were taken in cm and inches.

The measurements are: (in cm) a = 2.5 b=1.5 The formula is: (a+b)/a=( a)/b=1.618 In this

Magnetism is a very interesting topic. Playing with magnets can be a very fun and interesting thing to do. It is easy to feel a magnetic force when magnets are close together. They are very fun and interesting, but what makes magnets work?

The lab was performed for the purpose of calculating the density of each type of object and determining if calculating the volume, and therefore the density, of two cubes can be more effectively done with a ruler (through the direct method) or by water displacement.

7. Place one ball bearing on the other side of the magnet, about 3 cm away.