Force and Its Representation, A force is a push or pull acting upon an object as a result of its interaction with another object,in physics, force is what causes a mass to accelerate. It may be experienced as a lift, a push, or a pull. The acceleration of the body is proportional to the vector sum of all forces acting on it (known as the net force or resultant force
contact force types
- Frictional Force
- Tension Force
- Normal Force
- Air Resistance Force
- Applied Force
- Spring Force
and Action at a Distance Forces are
- Gravitational Force
- Electrical Force
- Magnetic Force
the UMPTN 1986 consist of 35 number of problems, is about optics, GLBB, GLB, acceleration, force, newton law, magnetic fields and others. you should download these test by clicking link below
DOWNLOAD UMPTN TEST 1986 WITH MAJOR PHYSIC mirror link 1
DOWNLOAD UMPTN TEST 1986 FISIKA mirror link 2
at this test of spmb still about Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light)
The study of light and the interaction of light and matter is termed optics. then optic The observation and study of optical phenomena such as rainbows and the Aurora Borealis offer many clues as to the nature of light as well as much enjoyment.
other test about mechanism , A mechanism is some technical aspect of a larger process or mechanical device, a part or combination of parts designed to perform a particular function,The scientific definition of a machine is any device that transmits or modifies energy. In common usage, the meaning is restricted to devices having rigid moving parts that perform or assist in performing some work and then about kinetics Kinematics (Greek ??????, to move) is a branch of mechanics which describes the motion of objects without the consideration of the masses or forces that bring about the motion. By contrast, dynamics is concerned with the forces and interactions that produce or affect the motion
then dynamical test,dynamics is the branch of classical mechanics that is concerned with the effects of forces on the motion of objects. The former distinguishes it from kinematics and the latter distinguishes it from statics. In quantum physics, dynamics may refer to how forces are quantized, as in quantum electrodynamics or quantum thermodynamics’s.
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