helpful and beautiful 21 slides about motion,time and speed

1. By,
Fardeen Faisal

2. OBJECTIVESOBJECTIVES
Motion involves a change in the position of
an object over time.
Motion can be described using
mathematical relationships.
Many technologies that apply concepts
related to kinematics have societal and
environmental implications

3. MotionsMotions
 When an object changes its position with
elapse of time in respect to a stationary
object, such as a building, electric pole, etc.,
the object is said to be in motion.

4. MotionMotion

5.  Rectilinear Motion: Motion along a
straight line is known as
RECTILINEAR motion or motion
along a straight line. For example:
Motion of a car along a straight line.

6.  Curvilinear Motion: Motion along a curve
line is known as curvilinear For example:
Motion of car or any moving object along a
curve line.

7.  Circular Motion: Motion along a circle is
known as circular motion. For example:
Motion of cyclist along a circular park.

8. Slow and Fast Motion: If an object ‘A’
covers a distance in less time and
another object covers the same distance
in more time, the object A is called a
faster moving object and object B is
called a slower moving object. In
other words, object A has faster
motion and object B has slower motion.

9. Time

10.  Time Period: Time taken to complete
one oscillation by the pendulum is called
time period.

11. Unit of Time: Time is measured in
second. Unit of time is second. Second is
denoted by ‘s’.
60 second = 1 minute
60 minute = 1 hour
24 hour = 1 day
7 day = 1 week
365 days = 1 year

12.  Periodic Motion or Oscillatory
Motion: When an object repeats its
motion after every fixed interval of time,
the motion of the object is called
periodic motion or oscillatory motion.
 In many wall clocks pendulum is used
even today. A device having a string
suspended with a fixed point with a bob
at bottom is called pendulum.

13.  The motion of pendulum starting from one
extreme end to another extreme end and
back to the first extreme end is called one
oscillation. Similarly, the motion of a simple
pendulum from its mean position to extreme
left and extreme right and back to the mean
position is called one oscillation.

14. Review Question:
A pendulum takes 20 second
to complete 10 oscillations,
calculate its time period.

15. Solution:Solution:
Number of oscillations = 10
Time taken = 20 second
We know that,

16. SpeedSpeed

17. Speed: Distance covered by an object in
unit time is called speed.
Uniform Speed: If an object covers a
fixed distance in each unit of time the motion
is known as uniform motion or uniform
speed.
Non-uniform Speed: If an object does not
cover a fixed distance in each unit of time
the
motion is known as non-uniform motion or
non-uniform speed.

18.  Unit of speed: Units of speed are
• Meter / second
• Meter / minute
• Kilometer / hour

19.  Speedometer: A device used to
measure the speed of a vehicle is
called speedometer.

20.  Odometer:A device used to measure
the distance covered by a vehicle .

21. THANK YOU !!!!