Measurements

Question 0

How do you convert millimeters to centimeters?

Answer 0

You move the decimal place to the left. (Divide by 10)

Question 1

How do you convert centimeters to millimeters?

Answer 1

You add a zero the the right of the number of centimeters. When you multiply it by 10 you move the decimal place right

Question 2

How do you change meters to centimeters?

Answer 2

You multiply by 100 (move decimal two places to the right.)

Question 3

How do you change millimeters to meters?

Answer 3

You divide by 1000 (move decimal three places to the left)

Question 4

How do you change meters to kilometers?

Answer 4

You divide by 1000 (move decimal three places to the left)

Question 5

How do you change milliliters to liters?

Answer 5

You divide by 1000 (move decimal three places to the left)

Question 6

How do you change a liter to a milliliter?

Answer 6

You multiply by 1000 (move decimal three places to the right)

Question 7

How do you change a gram to a kilogram?

Answer 7

You divide by 1000 (move the decimal three places to the left)

Question 8

How do you change grams to milligrams?

Answer 8

You multiply by 1000 (move the decimal three places to the right)

Question 9

How many inches are in one meter?

Answer 9

39.37 in = 1m

Question 10

How many pounds are in one kilogram?

Answer 10

2.2lbs = 1kg

Question 11

How do you make a conversion?

Answer 11

How many centimeters are in 1.71 meters?
You make a conversion by:
1. Placing the units you want to convert on the bottom
100cm/1m
2. Multiply the number you want to convert by the conversion factor
1.71m • 100cm/1m

Question 12

Convert 3.86 inches into centimeters (use paper if you need to)

Answer 12

9. 80cm

3. 86 • 2.54cm/1in= 9.80

Question 13

Rules for counting significant figures:

Answer 13

1. nonzero integers are always sig. figs.
2. Zeros:
   •leading zeros are zeros that precede all of the nonzero digits. They do not count as sig. figs.
   • captive zeros are zeros between nonzero digits. They always count as sig. figs.
   •trailing zeros are zeros at the right end of a number. They are significant only if the number contains a decimal point.
3. Exact numbers which are determined by counting are assumed to have an infinite number of sig. figs.

Question 14

Rules for rounding off:

Answer 14

1 in a series of calculations , carry the extra digits through the final results then round off
2 if the digit to be removed is
a. less than 5, the preceding digit stays the same.
b. equal to or greater than 5, the preceding digit is increased by 1.