Vector and Scalar Quantities

The video tutorial explains the difference between scalar and vector quantities. Scalars have size but no direction, while vectors have both size and direction. Examples of scalar quantities include distance, speed, time, and temperature. Vector quantities include force, velocity, acceleration, and momentum. The video also includes interactive questions to test understanding, followed by answers and a conclusion.

What is a scalar quantity?

• A quantity with neither size nor direction

• A quantity with size and direction

• A quantity with direction but no size

• A quantity with size but no direction

Which of the following is NOT a scalar quantity?

• Temperature

• Force

• Speed

• Distance

Why is speed considered a scalar quantity?

• Because it is measured in newtons

• Because it has neither size nor direction

• Because it has a size but no direction

• Because it has a direction

What is a vector quantity?

• A quantity with size and direction

• A quantity with size but no direction

• A quantity with direction but no size

• A quantity with neither size nor direction

Which of the following is a vector quantity?

• Acceleration

• Temperature

• Time

• Distance

How is force represented as a vector?

• By its color

• By its direction only

• By arrows indicating size and direction

• By its size only

What distinguishes velocity from speed?

• Velocity has neither size nor direction

• Velocity has size but no direction

• Velocity has direction but no size

• Velocity has both size and direction

Which of the following is true about momentum?

• It is a scalar quantity

• It has no size

• It has no direction

• It is a vector quantity

Why is force considered a vector quantity?

• Because it has size but no direction

• Because it has direction but no size

• Because it is measured in seconds

• Because it has both size and direction

Which of the following is NOT a vector quantity?

• Force

• Time

• Acceleration

• Velocity