Phy (Last Chp)

• Volumetric thermal expansion of a solid is calculated using ΔV = bVΔT
• Work done = force x distance moved in same direction
• Energy can be transferred between objects by work done, heating or cooling, and electric current.
• The SI unit of energy is the joule (J).
• Heat capacity is the amount of heat required to raise the temperature of an object by 1 degree Celsius.
• Boyle's Law states that the product of pressure and volume remains constant at a given temperature.
• What is Science

  The knowledge gained through observation and experimentation is called Science.
• Scientists use scientific methods to test their hypotheses and theories.
• Science has two main branches: Natural Sciences (Physical & Life) as Biological Sciences.