Quiz on Physical Quantities, SI Units, and Scalars vs Vectors

Which of the following is a scalar quantity?

• Velocity
• Force
• Temperature
• Displacement

What is the SI unit for measuring mass?

• Kilogram
• Gram
• Pound
• Newton

Which of the following quantities is derived from the basic SI units?

• Length
• Time
• Area
• Mass

If a car travels 100 km in 2 hours, what is its average speed?

• 50 km/h
• 100 km/h
• 200 km/h
• 25 km/h

Which of the following is NOT a basic SI unit?

• Meter
• Second
• Liter
• Ampere

Which of the following is a fundamental characteristic of a scalar quantity?

• Has both magnitude and direction
• Requires only magnitude for complete description
• Can be represented by a vector
• Changes with coordinate system rotation

In the SI unit system, what is the base unit for length?

• Kilogram
• Meter
• Second
• Ampere

A vector quantity differs from a scalar quantity primarily by:

• Its numerical value
• Its magnitude
• Having both magnitude and direction
• Its measurement precision

Which conversion is equivalent to 1 kilometer?

• 100 meters
• 1000 meters
• 10 meters
• 500 meters

Velocity is an example of a:

• Scalar quantity
• Vector quantity
• Dimensionless quantity
• Derived unit