Measurement and Data

What is volume of the green stone? (use water displacement)

• 10.5 cm³

• 60.5 mL

• 50.0 mL

• 10.0 mL

Tags

NGSS.MS-PS1-2

Which piece of laboratory equipment should be used to correctly measure the volume of a liquid?

• triple-beam balance

• unmarked erlenmeyer flask

• test tube

• graduated cylinder

A small stone is dropped into a graduated cylinder and the water level rises from 18mL to 22mL. What is the volume of the stone?

• 22 cm³

• 18 cm³

• 40 cm³

• 4 cm

In order to measure the mass of a pencil, you should use what piece of equipment?

• triple-beam balance

• meterstick

• graduated cylinder

• thermometer

meaningful digits in a measured quantity

• conversion factor

• dimensional analysis

• significant digits

• unit

Which of the following numbers has three significant figures?

• 1014 miles

• 101 feet

• 1000 yards

• all of the choices

The _______ in a measurement include the digits that
              have been measured exactly, plus one digit whose value has been  
              estimated.

Which instrument would most accurately and precisely determine the mass of a toy car?

• An electronic light meter

• A spring scale

• A triple-beam balance

• A graduated cylinder

A lab group got the following measurements after measuring the density of an aluminum block three times Trial 1: 2.56 g/cm³ Trial 2: 3.0 g/cm³ Trial 3: 3.21 g/cm³ If the true measurement of the density of the block of aluminum is 2.70 g/cm³, how would you describe the measurements taken by the lab group?

• accurate

• precise but not accurate

• Both accurate and precise

• Neither accurate or precise

Timers at a swim meet used four different clocks to time an event. Which recorded time is the most precise?

• 55 s

• 55.2 s

• 55.25 s

• 55.254 s