Percent Error Quiz

A student estimated a mass to be 250g, but upon carefully measuring it, found the actual mass to be 240g. What is the percent error?

• 4%

• 10%

• 4.17%

• 2.5%

A student measured the temperature of boiling water and got an experimental reading of 97.5°C. What is the percent error?

• 2.5%

• 5%

• 0.5%

• 1%

An experimental measurement was taken of 10.4 mL and the actual measurement was 9.7 mL. What is the percent error?

• 6.73%

• 7.21%

• 7.69%

• 8.17%

The experimental calculation of the specific heat of aluminum was found to be .156 cal/g°C, but the actual value was given as .185 cal/g°C. What is the percent error?

• 15.68%

• 13.51%

• 16.22%

• 12.43%

Experimental = 62.5 g and accepted value = 65.2 g. Solve for percent error.

• 4.14%

• 2.04%

• 3.21%

• 5.00%

Joe measured the volume of an object 5 times, and got results of: 34.5 mL, 34.9mL, 34.2 mL, 33.4 mL, and 35.9mL. What is his average experimental result?

• 34.58 mL

• 34.78 mL

• 34.38 mL

• 34.98 mL

The actual volume of the object was 34.1 mL. What is the percent error of his average result?

• 1%

• 2.5%

• 3%

• 4.5%

A student estimated a mass to be 325g, but upon carefully measuring it, found the actual mass to be 342g. What is the percent error?

• 4.97%

• 5%

• 6%

• 10%

A student's calculation was found to have a 35.5% error, and his experimental measurement was 15.6 cm. What are the two possible values for the actual measurement?

• 10.06 cm and 21.14 cm

• 11.56 cm and 20.64 cm

• 9.56 cm and 22.64 cm

• 12.06 cm and 19.14 cm

A student's calculation was found to have a 15.6% error, and the actual value was determined to be 25.7 mL. What are the two possible values for the student's experimental measurement?

• 21.7 mL and 29.7 mL

• 22.7 mL and 28.7 mL

• 30.7 mL and 20.7 mL

• 21.8 mL and 29.6 mL