Loading question session…
15 questions
What is the term used for units that are basic and cannot be derived from other units?
In the SI system, the second is defined based on which physical phenomenon?
Which of the following statements about significant figures is correct?
The International System of Units (SI) uses a decimal system which makes unit conversions simple and convenient.
The unit of plane angle, the radian, is a dimensionless quantity.
Changing the units of a measured value can change the number of significant figures in that measurement.
Explain why it is important to report the result of a measurement with the correct number of significant figures.
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line
Describe how the unit of mass, the kilogram, is defined in the SI system.
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line
What is the general rule for the number of significant figures to retain in the result of a multiplication or division involving measured values?
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line
Which of the following is not a base unit in the International System of Units (SI)?
What does the term 'derived unit' refer to?
In the SI system, units of measurement are standardized to facilitate communication between scientists worldwide.
All significant figures in a measurement are always retained regardless of the arithmetic operations performed on them.
What is the significance of using scientific notation in reporting measurements?
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line
How does changing the unit of a measurement affect the numeric representation of significant figures?
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line