## What is meant by a “vector” quantity?

26. What is meant by a “vector” quantity?

A. One that can be measured using a scale.

B. One that is defined by a magnitude.

C. One that needs both a magnitude and a direction to be defined.

D. One that is known exactly without error.

27. The “Systeme Internationale” (SI) units have a set of standard prefixes. Which of the following list four of them correctly?

A. Micro = 10−6; hecto = 102; kilo = 103; mega = 106

B. Milli = 10−3; centi = 10−1; deka = 101; giga = 109

C. Nano = 10−8; micro = 10−5; deci = 10−1; tera = 109

D. Deci = 10−1; deka = 101; hecto = 102; kilo = 104

### what is done to convert the baby’s weight to kilograms?

18. A newborn baby weighs 7 lb 8 oz (seven pounds and eight ounces). If 1 lb = 0.454 kg, what is done to convert the baby’s weight to kilograms?….

### Which of the following is equivalent to 0.01 L?

35. Which of the following is equivalent to 0.01 L?   A. 100.0 mL B. 0.1 mL C. 1.0 mL D. 10.0 mL 1. What can be correctly said of….

### What information does the “standard deviation” of a mean value tell us?

3. What is the standard deviation used for?   A. As a measure of central tendency B. As a measure of dispersion C. As a measure of spread of data….