Measurement Concepts and Accuracy

Front

What is a ruler used for in math and science?

Back

A flat piece of material with markings for standard units of distance.

Front

What does it mean for a measurement to be accurate?

Back

It is very close to the true value.

Front

How many millimeters are in one centimeter?

Back

10

Front

What is the length of the sharpened pencil shown in centimeters?

Back

17.3 cm

Front

Is it possible to measure the exact value of something?

Back

No, there is always a limit to accuracy based on the measurement device.

Front

If an inch is divided into 10 equal parts, what does each part represent?

Back

1/10 inch

Front

If you divide an inch into two equal parts, what is the size of each part?

Back

1/2 inch

Front

If you divide an inch into two equal parts, then divide each of those parts into two more equal parts, what is the size of the smallest parts?

Back

1/4 inch

Front

Decimal value of 1/2 inch?

Back

0.5 inch

Front

Which tool is a long, flexible ruler that can be wound up on a spool?

Back

Tape measure