Which of the following is vector quantity?

Solution (By Examveda Team)

In Physics, we describe things using quantities. These quantities can be mainly of two types:

1. Scalar Quantities: These quantities only have a magnitude (a size or an amount). They don't have a specific direction.
Example: If you say the temperature is 25 degrees Celsius, it's just a value, it doesn't point anywhere.

2. Vector Quantities: These quantities have both a magnitude (size) and a direction.
Example: If you say you pushed a box with 10 Newtons of force to the right, you've given both the amount (10 Newtons) and the direction (to the right).

Now let's look at the options in the question:

Option A: Volume
Volume tells you how much space something occupies (like how much water a bottle can hold). It's just a size, it doesn't have a direction. So, Volume is a scalar quantity.

Option B: Mass
Mass tells you how much 'stuff' an object is made of. It's just an amount, it doesn't point anywhere. So, Mass is a scalar quantity.

Option C: Force
Force is a push or a pull. When you push or pull something, you always do it in a specific direction with a certain amount of strength. For instance, you push a door open outward, or you pull a rope upward. Because Force has both magnitude (how strong the push/pull is) and direction, it is a vector quantity.

Option D: Length
Length tells you how long something is. It's just a size or a distance, it doesn't have a specific direction. So, Length is a scalar quantity. (Note: While 'displacement' is a vector quantity, as it involves both distance and direction from a starting point, 'length' or 'distance' itself is scalar).

Therefore, the correct answer is Force because it is the only quantity among the options that has both magnitude and direction.