Procedure

1. Measure the length of the following line in cm as accurately as possible.

Record the LSD, the number of significant figures and the units.

2. Measure the length and width of this page in cm and calculate the area using

area = length x width. (1.1)

Observe the rule of multiplication. Be sure to keep only the physically significant digits. Do not

forget the units.

3. Measure the mass of the object supplied to you on the triple beam-balance. Record the LSD, the

number of significant figures and the units.

4. Measure the thickness of a thin plate provided to you, using a vernier caliper. Record the

number of the significant figures and the units.

5. Measure the angles of the following triangle (Fig. 1.1) using a protractor. Record the

significant figures and the units.

Questions

1. A rock has a mass of 340.6 g and a volume of 214 cm3. Calculate the density by

density = mass / volume. (1.2)

Observe the rule of division and do not forget the units.

2. Ann and Beth are measuring the mass of an object. Ann reports a value of 6 g, while Beth

obtains 6.0 g. What are the ranges of uncertainties of these values?

3. A block of wood is found to have the dimensions of 6.21 cm x 4.63 cm x 5.34 cm. Calculate

the volume of the block. Observe the rule of multiplication and do not forget the units.

There is an image that goes with question #5 which i will send it on a separate sheet because the image

won’t copy and paste and the lab book is 75 pages which Itwon’t allow me to download.