CBA 1.2 Measurements in Physics Experiments

The symbol mm represents

• micrometer

• millimeter

• megameter

• nanometer

The symbols for units of length in order from smallest to largest are

• m, cm, mm ,km

• mm, m, cm, km

• km, mm, cm, m

• mm, cm, m, km

The SI unit used to measure length is

• meter

• mile

• inch

• all are SI units of length

What would be the most appropriate SI unit for measuring length of an automobile?

• centimeter

• kilometer

• meter

• millimeter

Calculate the following and express the answer to the correct number of significant figures 21.4 + 15 + 17.1 + 4.003

• 57.573

• 57.57

• 57.6

• 58

Calculate the following and express the answer in scientific notation with the correct number of significant figures

10.5 x 8.8 x 3.14 =

• 2.9 x 10²

• 2.90 x 10²

• 290

• 290.1

When solving conversion problems which of the below is not used

• including units in my answer

• using significant figure rules when giving a numeric answer

• using google

• both a and b

3 Liters = ______milliliters. What is the correct set up below?

• 3 L x (1L/1,000mL)

• 3 mL x (1,000L/1mL)

• 3 mL x (1,000 mL/1L)

• 3L x (1,000 mL/1L)

How many significant figures in the number 2,000.000

• 1

• 4

• 7

• 6

How many significant figures are in the number 0.003350?

• 7

• 6

• 3

• 4