Physical science

hi writer please complete the procedure section of these problems # 1,2,5
and the question section complete these numbers 1,2 only
PLEASE SHOW YOUR WORK DON’T JUST PUT THE ANSWERS OKAY.
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
6. 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.
7. 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?
8. 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.

Sample Solution