Scalar

The video tutorial explains scalar quantities, focusing on mass, which is measured in grams and kilograms. It highlights that mass has magnitude only and is not dependent on direction, using the example of a dog with a mass of 25 kilograms. The tutorial also mentions other scalar quantities like time, speed, and temperature.

What is a scalar quantity?

• A quantity with both magnitude and direction

• A quantity that changes with direction

• A quantity with only magnitude

• A quantity with only direction

How is mass measured?

• In volts and amperes

• In grams and kilograms

• In seconds and minutes

• In meters and liters

Which of the following is true about mass?

• It changes with direction

• It is measured in newtons

• It is a vector quantity

• It remains constant regardless of direction

Which of the following is NOT a scalar quantity?

• Force

• Temperature

• Speed

• Time

What do time, speed, and temperature have in common?

• They are all measured in kilograms

• They are all scalar quantities

• They all depend on direction

• They are all vector quantities