Measurement and Scientific Methods

The SI unit of mass is...

• pound

• kilogram

• gram

• ounces

57.0 cm = ________ m

• 5700 m

• 0.57 m

• 570 m

• 5.7 m

The average kinetic energy in an object...

• weight

• temperature

• heat

• volume

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the correct measurement of significant figures?

• 21 mL

• 21.4mL

• 23 mL

• 21.50 mL

Which student was most precise? The actual mass of a beaker is 49.35 grams. Students performed three trials to measure the mass of the beaker.

• Bri

  Trial 1: 49.00g

  Trial 2: 48.89g

  Trial 3: 48.50g

• Kyle:

  Trial 1: 49.25g

  Trial 2: 50.00g

  Trial 3: 50.05g

• Cash:

  Trial 1: 51.02g

  Trial 2: 51.98g

  Trial 3: 50.60g

• Emory:

  Trial 1: 48.52g

  Trial 2: 48.00g

  Trial 3: 49.30g

A 15.3 g substance has a volume of 3.2 cm^3. What is the density of the substance to the correct significant figures? Density = Mass/Volume

• 0.209 g/cm^3

• 5.0 g/cm^3

• 4.78 g/cm^3

• 4.8g/cm^3

334 kg = __________ dg

• 0.0334 dg

• 3,340,000 dg

• 334,000 dg

• 0.334 dg

What is this measurement in meters and significant figures?

• 2.32 m

• 0.0230 m

• 0.023 m

• 0.0232 m

Scientists report mass in what measurement?

• gram

• kilogram

• Newton

• pound

What is this measurement to the correct significant figures?

42.67g + 40.987g

• 84 g

• 83.7 g

• 83.66 g

• 83.65 g

• 83.657 g