Error and Measurement

Which statement is FALSE?

• Mass measures the amount of matter in an object.

• Volume measures the amount of space something takes up.

• Density is the amount of mass per unit volume.

• The formula for density is d = v/m

Convert 27 m to mm.

• 0.027

• 27,000

• 2,700

• 0.27

Convert 500 mL to cm³

• 500

• 50

• 5,000

• 5

Which best describes the target?

• Precise, but not accurate

• Accurate but not precise

• Precise and accurate

• Neither accurate nor precise

Tags

NGSS.HS-PS2-2

NGSS.HS-PS4-1

Which best describes the target?

• A lot of systematic error

• A lot of random error

• No random error

A student uses a different balance for the third trial of their experiment. This would be an example of:

• random error

• systematic error

The density of water at 4 ^oC is known to be 1.00 g/mL. A student measures the density to be 0.98 g/mL. What is the ERROR?

• 0.02 g/mL

• -0.02 g/mL

• 2%

• -2%

Which student is the most ACCURATE?

• A

• B

• C

What is the length?

• 10 cm
• 9.5 cm
• 9.50 cm
• 9 cm

What is the length of the black bar?

• 5 cm
• 4.300 cm
• 4.30 cm
• 4.3 cm