Physical Quantities, Vectors, and Units Quiz

Which of the following is a scalar quantity?

• Velocity
• Force
• Displacement
• Temperature

What is the main difference between scalar and vector quantities?

• Scalars have magnitude only, vectors have both magnitude and direction
• Vectors have magnitude only, scalars have both magnitude and direction
• Scalars are always positive, vectors can be negative
• Vectors are always measured in SI units, scalars are not

Which of the following is an example of a vector quantity?

• Mass
• Time
• Acceleration
• Volume

What is a fundamental physical quantity?

• A quantity that can be measured directly
• A quantity derived from other quantities
• A quantity that changes over time
• A quantity that only exists in theory

Which of the following is NOT a fundamental physical quantity in the International System of Units (SI)?

• Length
• Time
• Mass
• Energy

What is a derived physical quantity?

• A quantity that can be expressed in terms of fundamental quantities
• A quantity that cannot be measured
• A quantity that is always constant
• A quantity that only applies to vectors

Which of the following is the SI unit of electric current?

• Volt
• Watt
• Ampere
• Coulomb

How many fundamental units are there in the International System of Units (SI)?

• 5
• 6
• 7
• 8

Which of the following operations can be performed between two vectors?

• Addition
• Subtraction
• Multiplication
• All of the above

What is the SI unit for the derived quantity of force?

• Joule
• Newton
• Pascal
• Watt