this is first part uploaded with video on youtube

1. VIDEO 6 WWW.JEEPHYSICSGURU.COM

2. BASIC MATHEMATICS

3. Till now covered Units and dimensions

4. Till now covered Units and dimensions Dimensional analysis

5. Till now covered Units and dimensions Dimensional analysis Significant figures

6. Till now covered Units and dimensions Dimensional analysis Significant figures Least count

7. Till now covered Units and dimensions Dimensional analysis Significant figures Least count Error analysis

8. Important concepts

9. Important concepts Knowledge of same basic graphs , like equation of line y = m.x + c , quadratic equations etc.

10. Important concepts Knowledge of same basic graphs , like equation of line y = m.x + c , quadratic equations etc. Basic knowledge of trigonometry.

11. Important concepts Knowledge of same basic graphs , like equation of line y = m.x + c , quadratic equations etc. Basic knowledge of trigonometry. Vectors

12. Important concepts Knowledge of same basic graphs , like equation of line y = m.x + c , quadratic equations etc. Basic knowledge of trigonometry. Vectors Calculus basics

13. Cover two topics We cover two topics for now First : VECTORS

14. Cover two topics We cover two topics for now First : VECTORS Then Later: CALCULUS

15. Vectors (type of physical quantity)

16. DEFINITION SCALARS Quantities in physics which are determined uniquely by one number are called scalars. Example: Mass , temperature , distance , speed , time , work , energy.

17. DEFINITION VECTORS Quantities in physics which are determined completely by two things 1st -> Magnitude 2nd ->Direction are called vectors. Example: weight , force ,acceleration ,velocity, displacement .

18. Don’t Get Confused Physics and English Dictionary are Different. Mass , Weight ho ya speed ,velocity Both means same in English dictionary. BUT In PHYSICS both have completely DIFFERENT Meanings.

19. To Understand Vectors To understand vectors we will consider examples of vectors for easy understanding. Pehla concept haiDistance/Displacement ka. Doosra concept haispeed/velocity.

20. Easiest thing to measure in a body : “ ITS POSITION WITH TIME “ Position is calculated with some reference point always . Reference point is called ORIGIN.

21. 3 Types of motion 1-dimensional motion. 2-dimensional motion. 3-dimensional motion.

22. 1-D Motion 1-Dimensional motion means: body only moves along a line. only one number good enough to represent a position uniquely. one single axes used to represent it. Simplest Example: “ Motion Of a Freely Falling Ball “

23. Motion of ball

24. Three positions during fall

25. Reference point dependence If top is reference point then initial value of position is 0 final value of position is -H

26. Reference point dependence If middle is reference point then initial value of position is H/2 final value of position is -H/2

27. Reference point dependence If ground is reference point then initial value of position is H final value of position is 0

28. THREE CASES

29. 2-D Motion 2 –dimensional motion means: Body moves on a plane. There are 2 numbers needed to specify a unique position. 2 perpendicular axes used to represent it. 2²=4 quadrants made by axes

30. Representation of positions on 2D

31. 3-D Motion 3 dimensional motion means : Body moves in space. There are 3 numbers needed to specify a unique position. 3-perpendicular axes used to represent it. 2³ = 8 octants made by axes.

32. 3 axes, 3 numbers used to represent

33. Example of a CUBE

34. SAY A FLY MOVES IN CUBE THEN Fly’s position will always be (at any time) determined uniquely by 3 numbers ( x,y,z). WHERE 0<x<1 , 0<y<1, 0<z<1 So here motion of fly is 3 dimensional

35. SO THESE WERE 3 TYPES OF POSSIBLE MOTION: NEXT: We further understand vectors. Taking distance /displacement ,speed /velocity as examples in next video

36. Abhikeliye good bye…..