mechanics

Question 1

name the two types of quantities

Answer 1

scalar quantity

vector quantity

Question 2

explain what a scalar quantity is

Answer 2

a physical quantity which ahs magnitude only

eg. time , mass, distance , speed , temperature , volume , height

Question 3

explain what is a vector quantity

Answer 3

a physical quantity which has both magnitude and direction

eg. force , velocity , displacement , weight

Question 4

how do u represent a vector quantity

Answer 4

using a arrow

length of arrow - gives the magnitude of the vector

head of arrow - gives the direction

Question 5

name the two types of vector quantities and explain

Answer 5

co- linear vectors - vectors acting in the same dimension (X,Y,Z)

perpendicular vectors - vectors acting at 90* to each other

Question 6

what type sof diagrams do u get and explain them

Answer 6

force diagram - a diagram showing forces acting on each an object , which is represented as a box

free body diagram - a diagrams showing forces acting on each an object , which is represented by a dot

Question 7

what is a resultant vector

Answer 7

a single vector which has the same effect as two or ore vectors acting on an object

Question 8

how d u caudate the resultant vector or co linear vectors

Answer 8

> u used addition

> consider the direction -
right : +. left : —
north: +. south : —-
east : +. west : —-

> after calculating always state direction : 7N, north

Question 9

what is equal vectors

Answer 9

vectors which have the same magnitude an act in the same direction