Understanding Fundamental Quantities

What is the SI base unit for length?

• kilometer

• millimeter

• centimeter

• meter

What is the derived unit for force in the SI system?

• joule (J)

• pascal (Pa)

• newton (N)

• watt (W)

What is the SI unit for temperature?

• Celsius

• Fahrenheit

• Rankine

• Kelvin

How is the unit of energy defined in the SI system?

• watt (W)

• calorie (cal)

• electronvolt (eV)

• joule (J)

What is the purpose of dimensional analysis?

• To analyze the emotional tone of a text.

• The purpose of dimensional analysis is to ensure the correctness of equations and facilitate unit conversions.

• To calculate the area of geometric shapes.

• To determine the speed of light in a vacuum.

Name a fundamental physical quantity that is not a base unit.

• energy

• velocity

• mass

• force

What is the derived unit for pressure?

• pascal (Pa)

• torr

• barometer

• atmosphere (atm)

What is the SI unit for electric current?

• ohm

• volt

• watt

• ampere

What is the relationship between mass and weight?

• Weight is independent of gravity.

• Weight is the force due to gravity acting on mass.

• Mass is the force acting on weight.

• Weight is the same as mass.

What is the derived unit for velocity?

• kilometers per hour (km/h)

• meters per minute (m/min)

• centimeters per second (cm/s)

• meters per second (m/s)