Skill Builder         A pendulum swings seven times per minute if the string Were half as long the pendulum world swing ten times per minute  if the original lenght  Were twice as long the pendulum would  swing five times per minute        Answer    Among more shorter the rope More times it is going to swing per minute       Bar graph    ----- ----- ----- -----    = 5 swings per minute     ----------- ----------   =7 swings per minute      ---------------------------   =10 swings per minute  
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SOLIDS
 1.Kinetic Energy   Kinetic energy is the energy associated with bodies that are in motion, depends on the mass and speed of the body. Ex: The wind when moving the blades of a mill. The kinetic energy, Ec, is measured in joules (J), mass, m is measured in kilograms (kg) and velocity, v, in meters / second (m / s).   2.Potential Energy   Potential Energy is the ability of a body to perform a job according to the configuration that holds in the system of bodies that exert forces between them, that is, potential energy is the energy that is able to generate a job as a consequence of the position of a body.   3.Thermal Energy   Thermal energy (also caloric energy or heat energy) is the manifestation of energy in the form of heat. In all materials the atoms that form their molecules are in continuous movement, either moving or vibrating.   4.Atoms   An atom is the smallest constituent of matter that has the properties of a chemical element. Each solid, liquid, gas, and plasma is composed of...
HOW DOES A SOLID BECOME LIQUID - FREEZING
The triple point is one in which the solid state, the liquid state and the gaseous state of a substance coexist in equilibrium. It is defined with a temperature and a vapor pressure ... At constant pressures above the triple point, heating ice causes it to pass from solid to liquid and from liquid to gas (or vapor). At pressures below the triple point, such as those encountered in outer space, where the pressure is close to zero, liquid water can not exist and, when heated, ice is converted directly into water vapor without passing through the liquid state , a process known as sublimation.
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