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SCIENCE
What Is Friction?
Friction is between 2 bodies which are in contact with each other and its slow down an object sliding from each other.
Gravity is s a fundamental interaction which causes mutual attraction between all things with mass or energy .
WHAT Causes of FRICTION?
If they have contact with each other is when the object is moving it will create an friction
TYPES OF FRICTION
Static Friction
Sliding friction
Rolling Friction
Fluid Friction
STATIC FRICTION- At Rest (not moving)
SLIDING FRICTION Sliding (when sliding at each other)
ROLLING FRICTION rolling(when something is rolling)
FLUID FRICTION Swim
ENERGY
WHAT IS ENERGY? Energy is AROUND us. It can make things move. It also can produce light heat and sound. It help us to do lot of things
TYPES OF ENERGY
ELECTRICAL MECHANICAL LIGHT
SOUND HEAT/THERMAL
CHEMICAL KINETIC
1.SOUND ENERGY-Sound energy is produced by vibrating
EX. CLAPPING
How do sound energy travels?
Sound energy travels through sound waves and most fastest way to travel to is solid
Where they travel?
Air
2.HEAT/THERMAL ENERGY- Heat is one of our needs in life. We have other term in heat we called it thermal and heat energy is produced by MATTER.
TYPES OF HEAT TRANSFER
1. CONVECTION is the energy transferred by direct contact
2.CONVECTION is transferred by the mass motion of molecules
3.RADIATION is transferred by electromagnetic radiation
3.ELECTRICAL ENERGY- Electrical energy is produced by electrons
4.LIGHT ENERGY- Energy from sun
ENERGY TRANSFORMATION
Energy transformation is energy to from another energy
SIMPLE MACHINES
What is simple machines?
Simple machines are machines that we use for our daily lives and help us to do lot of things
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