Measurements (Chapter 1)

Front

1 km = ___ m

Back

1,000 m

Front

Convert 27 km/h to m/s. What is the answer?

Back

7.5 m/s

Front

Which measurement has more than one placeholder zero? 0.40 s, 0.03 mL, 0.0065 m, 7,060 kg, 4.0 x 10^3 V

Back

0.0065 m

Front

Which measurement has more than one placeholder zero? 6,800 km, 0.062 s, 3,050 kg, 0.200 nm, 2.700 mA

Back

6,800 km

Front

What is the most precise way to measure the length of this paper clip? About 2 and a half cm, 2.5 cm, 2.50 cm, 2.55 cm

Back

2.50 cm

Front

What is the definition of a placeholder zero?

Back

A placeholder zero is a zero that is used to indicate the position of a digit in a number, but does not affect its value.

Front

What is the formula to convert km/h to m/s?

Back

Divide the speed in km/h by 3.6.

Front

What is the significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement and help convey the uncertainty in the value.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between significant digits, and trailing zeros in a decimal.

Front

What is the difference between precision and accuracy in measurements?

Back

Precision refers to the consistency of measurements, while accuracy refers to how close a measurement is to the true value.