1. MECHANICS

2. VELOCITY  V= d/t  d-DISTANCE  t-TIME  EXPRESSED IN (UNIT):  m/s  km/s  miles/h  km/h

3. VELOCITY OF LIGHT  3 x 10 E 8 m/s  3 x 10 E 5 km/s  3 x 10 E 10 cm/s  3x 10 E 11 mm/s  186,400 miles/s

4. AVERAGE VELOCITY V=Vo + Vf/2

6. ACCELERATION a=Vf-Vo/t Expressed in ( m/s E 2)

7. Gravity The attraction between two masses, such as the earth and an object on its surface. Commonly referred to as the acceleration of gravity.

8. GRAVITY  DOWNWARD ACCELERATION  9.81m/s E 2 on the Earth  1.6m/s E 2 on the Moon

9. Sir Isaac Newton

10. NEWTON’S LAW OF MOTION  I LAW---INERTIA  II LAW---FORCE  III LAW---ACTION/REACTION

11. I LAW A BODY WILL REMAIN AT REST OR CONTINUE TO MOVE WITH A CONSTANT VELOCITYIN A STRAIGHT LINE UNLESS ACTED ON BY AN EXTERNAL FORCE

12. I LAW IN PRACTICE

13. II LAW THE FORCE ( F) ACTED ON AN OBJECT WITH ACCELERATION (a) IS EQUAL TO THE MASS (m) MULTIPLIED BY THE ACCELERATION F=m * a

14. II LAW IN PRACTICE

15. III LAW FOR EVERY ACTION THERE IS AN EQUAL AND OPPOSITE REACTION

16. DIFFERENCE BETWEEN WEIGHT AND MASS IS THERE ANY DIFFERENCE??

17. WEIGHT IS THE FORCE ON A BODY CAUSED BY THE DOWNWARD PULL OF THE GRAVITY

18. WHO IS GOING TO FALL FASTER? IN VACCUM ELEPHANT OR FEATHER ??

19. WITH THE AIR RESISTANCE!!!

20. WEIGHT IS EXPRESSED IN  NEWTONS NOT GRAMS OR KILOGRAMS  Wt = m * g  m –mass (kg)  g – gravity ( m/s E 2)

21. GRAVITY

22. WITH GRAVITY OR WITHOUT?

23. MOMENTUM P=m * v TOTAL MOMENTUM BEFEORE INTERACTION IS EQUAL TOTAL MOMENTUM AFTER INTERACTION

24. WORK  WORK = F * d  F- FORCE (N)  D- DISTANCE (m)  EXPRESSED IN JOULES (J)

25. POWER  P=WORK/TIME  EXPRESSED IN WATTS (W)

26. ENERGY IS THE ABILITY TO DO WORK

27. POTENTIAL ENERGY  PE = m * g * h  m- mass (g)  g- gravity ( m/s E 2)  h- height (m)

28. KINETIC ENERGY  KE = ½ m * v E 2  m – mass (m)  Velocity (m/s)

29. POTENTIAL & KINETIC

30. TRANSFER OF ENERGY

31.  ELECTRIC-THERMAL-KINETIC-ELECTROMAGNETIC

32. HEAT  IS THE KINETIC ENERGY OF THE RANDOM MOTION OF MOLECULES

33. HEAT TRANSFER CONDUCTION CONVECTION RADIATION

34. CONDUCTION TRANSFER OF HEAT BY TOUCH

35. CONVECTION MECHANICAL TRANSFER OF HOT MOLECULES IN A LIQUID OR GAS

36. RADIATION TRANSFER OF ENERGY THROUGH SPACE

37. Temperature Scales

38. TEMEPERATURE CONVERSION  Tc = 5/9 ( F-32)  Tf = (9/5 C) + 32  Tk = Tc + 273