force and Motion

1. FORCE and
MOTION

2. WHAT IS FORCE?
A force is a push or pull that causes an
object to move faster or slower, stop,
change direction, or change size or
shape.

3. TYPES OF FORCE
• Air Resistance Force
• Applied Force
• Spring Force
• Frictional Force
• Gravitational Force
• Electrical Force
• Normal Force
• Magnetic Force

4. What is Air
Resistance?

5. Basically, it is
friction between
an object and the
air.
AIR RESISTANCE Elephant and feather

6. What causes
Air
Resistance?

7. All matter is made from
atoms and/or
molecules. The air is no
exception. When
something moves
through the air, it
bumps into the atoms
and molecules
AIR RESISTANCE

8. What is Applied
Force?

9. Applied force is when a
living creature puts
pressure on a object
APPLIED FORCE

10. What is Spring
Force?

11. Is when an object is
pushed together, then
when pressures taken
away it pops back to its
normal self.
SPRING FORCE

12. What is
Frictional
Force?

13. Frictional forces is
present everywhere in
our daily life. It is simply
impossible to reduce it
completely.
FRICTIONAL FORCE

14. What is
Gravitational
Force?

15. Newton’s fiery of gravitational
forces:
“Every particle of matter in the
Universe attracts every other
particle with a force that is
directly proportional to the
product of the masses of the
particles and inversely
proportional to the square of
the distance between them
GRAVITATIONAL FORCE

16. What is
Electrical
Force?

17. The attractive or repulsive
interaction between any two
charged objects is an electric
force. Like any force, its affect
upon objects.
ELECTRICAL FORCE

18. What is Normal
Force?

19. Normal force is the support
force exerted upon an object
which is in contact with
another stable object. For
Example, if a Vase is resting upon a
surface, then the surface is exerting
an upward force upon the vase in
order to support the weight of the
Vase.
NORMAL FORCE

20. What is
Magnetic
Force?

21. Magnetic force is the same as
gravitational forces in that no
one knows truly what it is.
Magnetic force is different
from gravitational and
electrical forces in that its
potential and momentic
energy is at the expense of an
electrical field in time.
MAGNETIC FORCE

22. What is Motion?

23. MOTION
a change in the position of an object over time.
How do you know
something has moved?
A stationary (not moving) object such as a
tree, street sign, or a line of the road.

24. A balanced force is one in
which the net force equals
ZERO.
Balanced Forces and Unbalanced
Forces
An unbalanced force is one in
which the net force is greater
than zero.

25. Do you think there will be any
motion?
Balanced Forces
25 Newton 25 Newton

26. Do you think there will be any
motion?
Unbalanced Forces
25 Newton 46 Newton

27. Only an UNBALANCED force can
change the motion of an object
Example: More Force cause
you to move if they pulls with
enough force. Their force is
greater than the force you’re
using to stay in place

28. The total combination of the forces acting on
an object is called NET FORCE.
Can more than one force
act on an object at the
same time?
Example: Gravity is pulling you down to Earth,
the ground is supporting you, and your legs
moving you forward as you run during PE..

29. What is GRAVITY?

30. The force of attraction between
all objects.
The amount of gravity depends
on two things:
1. The objects’ masses
2. The distance between the
two objects
GRAVITY

31. THANKS