# The uncertainties of using a ruler and caliper Essay

1487 Words Sep 29th, 2014 6 Pages
The uncertainties of measurements using a ruler, caliper, and spring scales.
Isaiah Gonzales, Roman Acuna
September 19, 2014
Abstract: The experimenters conducted a total of four mini labs. In each lab they had to find measurements dealing with different instruments such as a ruler, caliper, stopwatch, and two spring scales of different newtons. The objective in each experiment was to record and measure different objects and to also give advantages and uncertainties when dealing with different instruments. The experimenters found that each instrument comes with an uncertainty. When dealing with a ruler, the measurement can be very accurate but is not as precise as a caliper. The caliper was the most precise instrument that the
With the smaller scaled spring, they found it more precise on the newtons side, but only accurate on the grams side. This was the same for the 10 N spring scale. When measuring with the 5 N spring scale they found it to be more precise than the 10 N spring scale.
Experiment part three results-
Table 3: Time Data for Dropped Marble
Drop (Trial) Time (s)
1 .34 s
2 . 35 s
3 .34 s
4 .34s
5 .35 s
In the third experiment, the experimenters used a constant height to drop a marble from. The major uncertainty was the reaction of the experimenter who was recording the height.
Experiment part four results-
Table 4: Mass Set Density Data
Quantity Measurement Uncertainty
Height (cm) 2.302 cm 2.303 cm
Diameter (cm) 2.601 cm 2.602 cm
Radius (D/2) (cm) 1.3005 cm 1.301 cm
Mass (g) 100 g 100.01 g
Density (g/c3) 8.55 g/c^3 N/A
The experimenters used the equation Density = mass/volume. The equation helped them figure out the density of the 100 g mass.
Discussion: The experimenters concluded that with every thing you measure there will always be an

## Related Documents

• ###### Measuring The Volume And Mass Of A Cylinder, A Sphere And A Wooden Block

decrease. The experiment used a Vernier caliper to measure the height and the diameter of a cylinder. A Vernier caliper was also used to measure the diameter of the sphere. A meter stick was used to measure the length, width, and height of the wooden block. The precision of an instrument such as a Vernier caliper or a meter stick determines how many significant figures the data is presented in. The mass of the objects being tested will be measured using an electronic balance. The equations used…

Words: 1032 - Pages: 5
• ###### To Investigate the Trajectory of a Small Ball as It Rolls Off a Surface Which Is Inclined to the Horizontal

different meaning from mistakes where errors cannot be avoided in measurements. Students doing experiments MUST record the uncertainties and errors in their measurement. Students MUST take errors and uncertainties into account when calculating and presenting their results in laboratory reports. 2. Scrutinize and inscribe the readings (i) Vernier caliper Parts of a vernier caliper: 1. 2. 3. 4. 5. 6. 7. 8. Outside jaws: used to measure external lengths Inside jaws: used to measure internal…

Words: 6809 - Pages: 28
• ###### Essay on Hhgggggggggggggggggggggggggggggggggggg

EXPERIMENT 1 UNCERTAINTY AND ERROR ANALYSIS INTRODUCTION Physics is a field of Science, which is quantitative in nature. The purpose of doing experiments in Physics is mainly to collect and analyze the data. In all measurements, there is always some uncertainty associated with the values. The uncertainty may be because of systematic errors or random errors or both. The errors in a particular experiment may be due to the observer, or to the instrument used, or to a combination…

Words: 3424 - Pages: 14