The document discusses forces and their characteristics. It defines a force as a push or pull, and notes that forces can include twists, bends, turns, squashes and stretches. Forces are either contact forces or non-contact forces. Vectors are quantities that have both magnitude and direction, while scalars only have magnitude. Examples of vectors include force, velocity and acceleration, while examples of scalars include speed, energy and temperature. The document also explains how to add forces along a line by treating them as directed numbers and accounting for their positive or negative direction.

3. presents

4. presents
JUST FORCES

5. A force is a push or a pull or ...

6. A force is a push or a pull or ...

7. A force is a push or a pull or ...

8. A force is a push or a pull or ...
a twist

9. A force is a push or a pull or ...
a twist

10. A force is a push or a pull or ...
a twist
a bend

11. A force is a push or a pull or ...
a twist
a bend

12. A force is a push or a pull or ...
a twist
a bend
a turn

13. A force is a push or a pull or ...
a twist
a bend
a turn

14. A force is a push or a pull or ...
a twist
a bend
a turn
a squash

15. A force is a push or a pull or ...
a twist
a bend
a turn
a squash

16. A force is a push or a pull or ...
a twist
a bend
a turn
a squash
a stretch

17. A force is a push or a pull or ...
a twist
a bend
a turn
a squash
a stretch

18. A force is a push or a pull or ...
a twist
a bend
a turn
a squash
a stretch
...exerted by one object on another object

19. TYPES OF FORCES - action at a distance
TYPES OF FORCES
Non-contact - electrostatic, gravitational, magnetic
Contact - weight; reaction; thrust; drag/ air resistance/ friction; lift; tension

20. TYPES OF FORCES - action at a distance
TYPES OF FORCES
Non-contact - electrostatic, gravitational, magnetic
Contact - weight; reaction; thrust; drag/ air resistance/ friction; lift; tension

21. TYPES OF FORCES - action at a distance
TYPES OF FORCES
Non-contact - electrostatic, gravitational, magnetic
Contact - weight; reaction; thrust; drag/ air resistance/ friction; lift; tension

22. TYPES OF FORCES - action at a distance
TYPES OF FORCES
Non-contact - electrostatic, gravitational, magnetic
Contact - weight; reaction; thrust; drag/ air resistance/ friction; lift; tension

23. TYPES OF FORCES - action at a distance
Non-contact - electrostatic, gravitational, magnetic
TYPES OF FORCES
Non-contact - electrostatic, gravitational, magnetic
Contact - weight; reaction; thrust; drag/ air resistance/ friction; lift; tension

24. TYPES OF FORCES - contact

25. TYPES OF FORCES - contact

26. TYPES OF FORCES - contact

27. TYPES OF FORCES - contact

28. TYPES OF FORCES - contact

29. TYPES OF FORCES - contact
Contact - reaction; thrust; drag; air
resistance; friction; lift; tension

30. VECTOR: A quantity with both magnitude and direction.

31. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards

32. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east

33. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east
A displacement of 20 cm to the right

34. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east
A displacement of 20 cm to the right
SCALAR: A quantity with only a magnitude.

35. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east
A displacement of 20 cm to the right
SCALAR: A quantity with only a magnitude.
Power of 1500 watts

36. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east
A displacement of 20 cm to the right
SCALAR: A quantity with only a magnitude.
Power of 1500 watts
Speed of 300 000 000 m/s

37. VECTOR: A quantity with both magnitude and direction.
A force of 3 000 N downwards
A velocity of 300 m/s east
A displacement of 20 cm to the right
SCALAR: A quantity with only a magnitude.
Power of 1500 watts
Speed of 300 000 000 m/s
Temperature of 300 degrees Celsius

38. VECTORS AND SCALARS

39. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.

40. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity

41. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force

42. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration

43. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement

44. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.

45. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.
Speed

46. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.
Speed Distance

47. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.
Speed Distance Energy

48. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.
Speed Distance Energy Volume

49. VECTORS AND SCALARS
VECTOR: A quantity with both magnitude and direction.
Velocity Force Acceleration Displacement
SCALAR: A quantity with only a magnitude.
Speed Distance Energy Volume Temperature

50. V1 V2 V3
V4
VR

51. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.

52. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.

53. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
150 N

54. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
150 N

55. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N

56. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N
Let positive direction be to the right

57. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N
Let positive direction be to the right
300 + (-350) + 150 = 100

58. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N
Let positive direction be to the right
300 + (-350) + 150 = 100
Resultant is 100 N to the right

59. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N
Let positive direction be to the right
300 + (-350) + 150 = 100
Resultant is 100 N to the right

60. ADDING FORCES ALONG A LINE: They are added like
directed numbers taking into account positive or negative
direction.
300 N
350 N
150 N
Let positive direction be to the right
300 + (-350) + 150 = 100
Resultant is 100 N to the right
100 N