Vectors

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, along with the direction.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude (e.g., speed), while vector quantities have both magnitude and direction (e.g., velocity).

Front

What is the resultant of two vectors?

Back

The resultant of two or more vectors is the vector sum of those vectors.

Front

How do you calculate the magnitude of the resultant vector?

Back

Use the Pythagorean theorem: R = √(A² + B²) for perpendicular vectors.

Front

What is the direction of a vector?

Back

The direction of a vector indicates where it points, often expressed in degrees or cardinal directions.

Front

What is a unit vector?

Back

A unit vector is a vector with a magnitude of 1, used to indicate direction.

Front

How do you represent vectors graphically?

Back

Vectors are represented graphically by arrows, where the length indicates magnitude and the arrowhead indicates direction.

Front

What is the component form of a vector?

Back

The component form of a vector expresses it in terms of its horizontal (x) and vertical (y) components, e.g., V = (Vx, Vy).

Front

What is the significance of the angle in vector addition?

Back

The angle between vectors affects the magnitude of the resultant vector when added.

Front

How do you find the angle of a resultant vector?

Back

Use trigonometric functions: θ = tan⁻¹(opposite/adjacent) for right triangles.