1. The document discusses various topics in physics including mechanics, motion, vectors, and kinematics formulas. 2. Mechanics is the branch of physics that deals with the study of motion of material objects. Motion can be rectilinear, circular, rotational, translational, and one, two, or three dimensional. 3. Important concepts in motion include speed, velocity, distance, displacement, scalars, and vectors. Kinematics formulas summarize relationships for one dimensional motion with constant acceleration.

1. PHYSICS

2. MECHANICS
UNIFORM
MOTION
UNIFORMLY
ACCELERATED
MOTION
VECTORS
MOTION IN A
PLANE

4. WHAT IS SCIENCE
Science Scientia
Science is not just a collection of
Laws,a catalogue of unrelated facts.it is a creation of Human mind,with
the freely invented ideas and concepts.
The task of Science is both to extend the range
of our experience and to reduce it to order.
The two processes , that of science and that of
Art are not very different .Both Science and Art , form in the course of centuries
, a human language , by which we can speak about the more real part of reality.

5. The Branch Of Physics Which Deals With The Study Of Motion Of
Material Objects Is Called -- MECHANICS
MECHANICS
Statics
Kinematics
Dynamics

7. OBJECT IN MOTION

8. Types of motion-
(1)Rectilinear or Translatory motion
Rectilinear motion-is that motion in which a particle or point
mass body is moving along a straight line.
Translatory motion-is that motion in which a body , which is
not a point mass body is moving such that all constituent
particles move simultaneously along parallel straight lines and
shift through equal distance in a given interval of time
Rectilinear or translator motion can be uniform or non-uniform

9. (2) Circular or Rotatory motion-
Circular motion-is that motion in which a particle or a point
mass body is moving on a circle.
Rotatory motion-is that motion in which a body , which is not
a point mass body , is moving such that all its constituent
particles move simultaneously along concentric circles ,
whose centre lie on a line, called axis of rotation and shift
through equal angle in a given time.
Circular or rotatory motion can be two dimensional or three
dimensional motion and can be uniform or non-uniform
motion

10. 1-d motion-A motion in which one co-ordinate change out of
three co-ordinates specifying the position w.r.t time.
eg:-linear motion
Dimensional motion

11. 2-D MOTION- if the two co-ordinates change out of three co-
ordinates specifying the position of object
Eg:-motion along a plane
3-d motion- if three co-ordinates specifying the position of object w.r.t time
Eg:-motion in a space(motion of gas molecules)

12. Units
Units are not the same as quantities!
Quantity . . . Unit (symbol)

13. SI Prefixes
Little Guys Big Guys

14. Some Physics Quantities
Vector - quantity with both magnitude (size) and direction
Scalar - quantity with magnitude only
Vectors
Vectors are represented with arrows
• The length of the
arrow represents the
magnitude (how far,
how fast, how strong,
etc, depending on the
type of vector).
• The arrow points in
the directions of the
force, motion,
displacement, etc. It
is often specified by
an angle.
42°

16. Distance vs. Displacement
start
stop

17. Speed vs. Velocity

18. Speed vs. Velocity

20. Kinematics Formula Summary
1-D motion with constant acceleration:
(derivations to follow)
• v = u + at
• v = (u + v)/2
• s = ut +1/2at2
• v2 – u2 = 2 a s