Units practice

What do we use to measure Mass?

• Scale

• timer

• ruler

• bucket of water

What do we use to measure time?

• ruler

• stopwatch

• scale

• force meter

What do we use to measure distance?

• stopwatch

• ruler

• scale

• spring

What unit of measurement do we use for mass?

• seconds

• grams

• pounds

• feet

what unit do we use when we measure time?

• seconds

• years

• feet

• grams

What unit do we measure use when measuring distance?

• Meters

• grams

• seconds

• pounds

The percent error formula lets you know the percentage away from the true value?

• True

• False

Susan calculated a 90% error in her lab experiment. Is she accurate?

• No not less than 15% error

• Yes she is close to 100%

• Yes because 90 is a large umber

• Yes because 90% is an A

It is a measure of how close measurements come to each other when they are made in the same way

• Accuracy
• Precision
• Error
• Extrapolation

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate