physics

• Force


  A pulling or pushing on an object resulting from the object's interaction with another object, can change speed, direction or shape of an object
• Force meter


  An instrument used to measure the size of a force
• Voltage


  The size of push that causes a current to flow around a circuit
• Voltage measures the size of push that causes the current to be more
• Battery


  Energy that is transferred by chemical reactions to electrical energy
• Diffuse scattering


  Reflection of waves (such as light) not in an ordered uniform way
• Absorb


  Take in or soak up, for e.g. energy from sound
• Satellite


  An object sent into space in order to collect information or to be part of a communication system
• Transverse wave


  A wave in which the oscillations are at right angles to the direction of energy transfer
• Transparent


  A material that allows light to pass through it
• Opaque


  Cannot be seen through, not transparent
• Translucent


  A material that lets some but not all light to pass through
• Specular reflection


  Mirror-like reflection from a smooth surface, angle of incidence is equal to the angle of reflection
• Image


  Picture of an object that we see in a mirror or through a lens or system of lenses
• Hertz


  The unit of frequency, e.g. 1 hertz = 1 wave per second
• Longitude


  Measures distance east or west of the prime meridian
• circuits 


  is a loop of wire which is connected to a source of wire such as a battery or cell
• components 


  part of an electric circuit , e.g ; light bulb
• newton


  the unit that we use to measure a force
• weight 


  the force of gravity which pulls an object down to earth
• friction


  a slowing down force caused by two surfaces rubbing together
• conducter


  material that transfers electric charge by passing on energy to nearby particles
• Ammeter


  used to measure the current flowing in a circuit
• insulator 


  does not allow current to pass
• ampere


  unit of measurement of current symbol A