Accompanied force with motion
1- the inertia: it is a property of an object has to resist the change of its phase from rest to motion in a regular speed and in straight line unless an external force
acted on it .
example : when a horse is tripped , the horse rider is suddenly rushed forward.
2- Centrifugal: it is a force affect in object in Circular path Way motion perpendicular to the path way.
Example : a car driver in case of curves .
Centrifugal directly proportion with square of speed.
3-Friction: they are resistant force originates between the object
In motion and the medium touching it.
The benefits of friction:
1-help in stopping and starting motion of cars on road
2-prevent slipping on road during walking.
Harms of friction:
1- it produce heat energy between some parts in machine.
2- It causes corrosion and damage machine's parts
Reduce friction:
1- lubricating and oiling mechanical machines
2- making streamlined cars to reduce friction between car and air
Force inside living organisms:
1- contraction and relaxation of heart muscle
2- contraction and relaxation of muscle
3- Transfer liquid from soil to plant
Wave's motion
First : motion : it is the change in position in space .
Relative n Motion: it is a change in an object position or direction with the time Passes in proportion to another object or fixed point.
Type of motion:
1- Periodic motion: it is a motion which regularly repeated in equal period of time.
Example: vibrating motion: as pendulum
* Circular motion: as fan
* Wave motion: as water waves
* The periodic motion doesn't have initial or final point.
2- Transition motion: It is the motion in which the object's position is change relative to a fixed point from time to time
Between initial and final position.
Type of wave motion
*mechanical waves
They produce due to vibration of medium
- they need medium to transfer
- their speed is relatively low as sound
• electromagnetic waves
- they didn't need medium
- their speed is extremely high
- they accompanied by magnetic field
As light waves - radio waves - ultrasonic waves – gamma waves
Technological application on wave:
Lighting: it is a flash transfer in form of electromagnetic waves
Thunder: it is a sound transfer in form of mechanical waves.
• we see lighting before thunder because electromagnetic waves is faster than mechanical waves or the speed of light is greater than sound
• sound waves used in musical instrument as stringed musical ( violin- lute – guitar)
• pneumatic musical as flute and reed pipe
• application on electromagnetic waves:
• ultraviolet rays : sterilize operating room
• Infra red rays: used in cooking food – in vision apparatus – making remote control.
• Gamma rays: in medical in discovering swelling.
• x – rays : detecting fracture in bones
• Visible light: used in camera, data show.
Graphing motion:
1- the object move with regular speed
• it moves equal distance every one second time
2-the object move with irregular speed
* move unequal distance every one second.
3- The object in static motion
• The displacement: it is the distance which the object move away From its original position.
• The speed : it is the distance covered by object in one second
1- the inertia: it is a property of an object has to resist the change of its phase from rest to motion in a regular speed and in straight line unless an external force
acted on it .
example : when a horse is tripped , the horse rider is suddenly rushed forward.
2- Centrifugal: it is a force affect in object in Circular path Way motion perpendicular to the path way.
Example : a car driver in case of curves .
Centrifugal directly proportion with square of speed.
3-Friction: they are resistant force originates between the object
In motion and the medium touching it.
The benefits of friction:
1-help in stopping and starting motion of cars on road
2-prevent slipping on road during walking.
Harms of friction:
1- it produce heat energy between some parts in machine.
2- It causes corrosion and damage machine's parts
Reduce friction:
1- lubricating and oiling mechanical machines
2- making streamlined cars to reduce friction between car and air
Force inside living organisms:
1- contraction and relaxation of heart muscle
2- contraction and relaxation of muscle
3- Transfer liquid from soil to plant
Wave's motion
First : motion : it is the change in position in space .
Relative n Motion: it is a change in an object position or direction with the time Passes in proportion to another object or fixed point.
Type of motion:
1- Periodic motion: it is a motion which regularly repeated in equal period of time.
Example: vibrating motion: as pendulum
* Circular motion: as fan
* Wave motion: as water waves
* The periodic motion doesn't have initial or final point.
2- Transition motion: It is the motion in which the object's position is change relative to a fixed point from time to time
Between initial and final position.
Type of wave motion
*mechanical waves
They produce due to vibration of medium
- they need medium to transfer
- their speed is relatively low as sound
• electromagnetic waves
- they didn't need medium
- their speed is extremely high
- they accompanied by magnetic field
As light waves - radio waves - ultrasonic waves – gamma waves
Technological application on wave:
Lighting: it is a flash transfer in form of electromagnetic waves
Thunder: it is a sound transfer in form of mechanical waves.
• we see lighting before thunder because electromagnetic waves is faster than mechanical waves or the speed of light is greater than sound
• sound waves used in musical instrument as stringed musical ( violin- lute – guitar)
• pneumatic musical as flute and reed pipe
• application on electromagnetic waves:
• ultraviolet rays : sterilize operating room
• Infra red rays: used in cooking food – in vision apparatus – making remote control.
• Gamma rays: in medical in discovering swelling.
• x – rays : detecting fracture in bones
• Visible light: used in camera, data show.
Graphing motion:
1- the object move with regular speed
• it moves equal distance every one second time
2-the object move with irregular speed
* move unequal distance every one second.
3- The object in static motion
• The displacement: it is the distance which the object move away From its original position.
• The speed : it is the distance covered by object in one second
