Table of Contents
- 1 What has direction but no magnitude?
- 2 What has only magnitude and direction?
- 3 Which of the following has zero magnitude?
- 4 Which of the following has only magnitude?
- 5 Is Velocity A magnitude?
- 6 What is the difference between magnitude and direction?
- 7 What is the magnitude and direction of displacement?
What has direction but no magnitude?
A quantity that has magnitude but no particular direction is described as scalar. A quantity that has magnitude and acts in a particular direction is described as vector.
What has only magnitude and direction?
Vectors have magnitude and direction, scalars only have magnitude. The fact that magnitude occurs for both scalars and vectors can lead to some confusion. There are some quantities, like speed, which have very special definitions for scientists.
What is the magnitude of a vector if it has no direction?
Zero Vector or null vector is a vector which has zero magnitude and an arbitrary direction. It is represented by 0 . If a vector is multiplied by zero, the result is a zero vector.
Can a vector have no magnitude?
Can it be zero? Answer: Magnitude cannot be negative. The zero vector (vector where all values are 0) has a magnitude of 0, but all other vectors have a positive magnitude.
Which of the following has zero magnitude?
Explanation: a zero or null vector is a vector that has zero magnitude and an arbitrary direction. the velocity vector of a stationary object is a zero vector.
Which of the following has only magnitude?
scalar quantity
A physical quantity which has only magnitude is called scalar quantity eg: speed and distance whereas physical quantities which have both magnitude and direction are called vector quantities eg: velocity and displacement.
Is a vector having zero magnitude have no direction?
We define a vector as an object with a length and a direction. However, there is one important exception to vectors having a direction: the zero vector, i.e., the unique vector having zero length. With no length, the zero vector is not pointing in any particular direction, so it has an undefined direction.
What does a force vector with zero magnitude mean?
When an object is in equilibrium (either at rest or moving with constant velocity), the net force acting on it zero. A vector can only have zero magnitude if all of its components are zero.
Is Velocity A magnitude?
Velocity, being a vector, has both a magnitude and a direction. The magnitude of the velocity vector is the instantaneous speed of the object.
What is the difference between magnitude and direction?
Magnitude answers “how much?” and direction answers “which way?”. For example, 5 meters is a magnitude, North is a direction. 5 meters north is a vector quantity, which has both magnitude and direction. Direction matters for some quantities in physics (called vector quantities), but not others (called scalar quantities).
What is an arrow with both direction and magnitude?
It’s a mathematical term, represented by an arrow with both direction and magnitude. Vector! That’s me, because I commit crimes with both direction and magnitude. Oh yeah! For Euclidean vectors, it’s natural to think of vectors having direction and magnitude.
What is the magnitude of a variable in physics?
At any level, the magnitude of a variable is the amount it denotes. Suppose if the magnitude of velocity is 10 then it means the value of velocity is 10 irrespective of its location or direction. When we start considering vectors, the magnitude of the variable is not sufficient enough to depict the variable.
What is the magnitude and direction of displacement?
Displacement is the change in position by a body. It’s defined as shortest distance between initial and final position of the body. It’s a vector quantity. Hence, it has both magnitude and direction. To understand the magnitude and direction of displacement, consider a body moving from position A to position B.