Derived SI Units

The video tutorial explains the SI system of measurement, which includes seven base units and several derived units. It focuses on how derived units, such as force, are calculated using algebraic relationships between base units. The unit of force, known as a newton, is derived from mass and acceleration. The tutorial also mentions that there are 22 named SI-derived units, some of which are named after scientists, while others are labeled based on their algebraic relationships.

What is the primary purpose of derived units in the SI system?

• To replace base units

• To describe quantities that are not covered by base units

• To simplify calculations

• To provide more accurate measurements

How is the unit of force, known as a newton, defined in terms of base units?

• Kilogram meter per second squared

• Second per kilogram meter

• Meter per second squared

• Kilogram per meter squared

Which of the following is a derived unit named after a scientist?

• Kilogram

• Newton

• Meter

• Second

How many named SI-derived units are there?

• 15

• 7

• 30

• 22

Which of the following is NOT a characteristic of derived units?

• They can be expressed using algebraic relationships

• They are all named after scientists

• They are used for quantities like force and volume

• They are combinations of base units