Measurement Concepts Quiz

What is the definition of accuracy in measurements?

• The smallest interval a device can measure

• How close a measurement is to its true value

• A consistent shift in readings

• A measure of closeness to the mean value

What are base units?

• Units derived from other measurements

• The set of seven basic measures

• Units that have a magnitude and direction

• Units that only have a magnitude

What does precision in measurements refer to?

• The smallest interval a device can measure

• How close a measurement is to its true value

• How close a measurement is to the mean value

• A consistent shift in readings

What is a random error?

• A consistent shift in readings

• An unpredictable variation in a measurement

• A form of systematic error

• The smallest interval a device can measure

What is a scalar quantity?

• A quantity with magnitude and direction

• A quantity that only has a magnitude

• A characteristic that can be measured

• A form of systematic error

What is a systematic error?

• An unpredictable variation in a measurement

• A consistent shift in readings

• The smallest interval a device can measure

• A measure of closeness to the mean value

What is a vector quantity?

• A quantity that only has a magnitude

• A quantity with magnitude and direction

• A characteristic that can be measured

• A form of systematic error

What is a zero error?

• A consistent shift in readings

• An unpredictable variation in a measurement

• A form of systematic error caused by a measuring instrument not reading zero

• The smallest interval a device can measure

What is resolution in the context of measurements?

• The smallest interval a device can measure

• How close a measurement is to its true value

• A consistent shift in readings

• A measure of closeness to the mean value

What is meant by quantity in physics?

• A consistent shift in readings

• A characteristic that can be measured

• A form of systematic error

• The smallest interval a device can measure