Approximating Measurement

the width of one’s hand excluding the thumb

• Handspan

• Palm

• Forehand Length

the distance from the tip of the thumb to the tip of the little finger of one’s hand with fingers spread apart

• Palm

• Handspan

• Forearm Length

the length of one’s forearm; the distance from the elbow to the tip of the middle finger

• Palm

• Handspan

• Forearm Length

Which of the following affects the accuracy of measurements?

• the unit of measure

• the part of the body used in measurement

• the skill of the person doing the measurement

• the length of the instrument used in measuring

In the early system of units, the forearm length was called cubit. The palm is considered what part of a cubit?

• 2/3

• 1/2

• 1/3

• 1/6

In the early system of units, the forearm length was called cubit. The handspan is considered what part of a cubit?

• 2/3

• 1/2

• 1/3

• 1/6

At around 3rd century BC in _______________, people use their body parts to determine the measurement of things.

• Europe

• Egypt

• Philippines

• Iran

Accuracy of measurements depends on two factors: _______________ and _______________.

• The object

• The skill of person doing the measurement

• the precision of the instrument used in measurement

• The country

What is the baseunit for temperature?

• Kelvin (K)

• Candela (cd)

• mole (mol)

• ampere (A)

To measure small objects like microchip, what unit should you use?

A. millimeter

B. centimeter

C. meter

D. kilometer

• Centimeter

• Millimeter

• Meter

• Kilometer