Question

2.Which instrument would you prefer to use for the following measurements?
a. The diameter of a cylindrical can.
b. The length of a wall.
c. The length of a crayon.
3. Draw the table of common units for measuring length.

Answer 1

Answer:

1. vernier calipers

2. ruler, meter scale, measuring tape, vernier caliper, and screw gauge.

3. Ruler

Explanation:

Hope it helps you actually I can't understand ur question..

Answer 2

Answer:

1) The diameter of a cylinder is measured using vernier calipers with no zero error.

2Next, think about what unit of measurement makes the most sense for measuring a wall. You can rule out very small units like inches, centimeters and millimeters. We can also rule out really large units like miles and kilometers. The most appropriate units are either feet, yards or meters.

3In the modern English-speaking world, the term crayon is commonly associated with the standard wax crayon, such as those widely available for use by children. Such crayons are usually approximately 3.5 inches (89 mm) in length and made mostly of paraffin wax

Meters are used to measure everything between the length of a ruler and the distance between things in a room. Most household objects such as tables, rooms, window frames, television screens, etc. would be measured in meters. Kilometers are used to measure long distances