1. Scalars and Vectors

What are Scalars?

• Physical quantities with only magnitude and direction
• Physical quantities with only magnitude
• Physical quantities with only direction
• Physical quantities with only unit

What are Vectors?

• Physical quantities with only magnitude and direction
• Physical quantities with only magnitude
• Physical quantities with only direction
• Physical quantities with only unit

What do Vectors represent?

• Only quantity
• Only direction
• Quantity and direction
• None of the above

What is a Unit Vector?

• A vector with magnitude 1 and directed along a given vector
• A vector with magnitude 0 and directed along a given vector
• A vector with magnitude 1 and directed opposite to a given vector
• A vector with magnitude 1 and perpendicular to a given vector

What are Equal Vectors?

• Vectors with different directions and magnitudes
• Vectors with the same direction and magnitude
• Vectors with the same direction and different magnitudes
• Vectors with different directions and the same magnitude

What is a Null Vector?

• A vector with zero magnitude and different initial and terminal points
• A vector with zero magnitude and the same initial and terminal points
• A vector with non-zero magnitude and the same initial and terminal points
• A vector with non-zero magnitude and different initial and terminal points

What is a Free Vector?

• A vector that can be displaced perpendicular to itself and applied at any point
• A vector that can be displaced parallel to itself and applied at any point
• A vector that can be displaced perpendicular to itself and applied at its initial point
• A vector that can be displaced parallel to itself and applied at its initial point

How are Vectors resolved into Rectangular Components?

• By making angles of 45° with each other
• By making angles of 60° with each other
• By making angles of 90° with each other
• By making angles of 180° with each other

What is the characteristic of Vector Graphics?

• They are digital images created through pixels
• They are digital images created through mathematical statements
• They lose quality when zoomed in
• They are used only for 3D images

Which is the Unit Vector of a given Vector r?

• r̂

• <r/>

• <r∩>

• <r* >