Circuits and fossil fuels

• A buzzer


  What is this ?

  
• What does a light bulb look like?

  Line , circle with cross , line

  
• What does a variable resistor look like?

  Line, rectangle with arrow , line
• What does a resistor look like?

  Line , rectangle , line
• What does a voltmeter look like?

  Line, Circle with V , line
• What does an ammeter look like ?

  Line, circle with A , line
• What does a battery look like ?

  Line , long vertical line, short vertical line , dotted line and another
• What does a cell look like ?

  Line , long then short horizontal
• What does a switch look like?

  line , circle , line open or closed , line
• What materials are conductors of electricity ?

  Metals
• What happens when another bulb is added to a basic circuit ?

  .The bulbs get dimmer, the current is reduced
• What happens when another cell is used in a basic circuit ?

  The bulb gets brighter , The current is increased
• What happens in a parallel circuit ?

  Current has multiple paths to flow, which means bulbs are equally bright and have the same current
• What is voltage ?

  Electric potential difference.
• How is resistance measured ?

  Ohm (Ω)
• What does high ohms mean ?

  .It is more difficult for the current to flow throughout the circuit
• How do you figure out Volts?

  Voltage formula: V = I * R (Ohm's Law)
• How is static electricity caused ?

  By electrons (- charge ) being removed from one substance to another
• How is electric current measured ?

  .Using an ammeter
• A proton has what charge ?

  Positive
• A neutron has what charge ?

  Neutral
• An electron has what charge ?

  Negative
• A proton and electron have what charge ?

  .Equal and opposite charge
• An uncharged atom has equal numbers of ?

  Protons and electrons
• An uncharged atom is called ?

  An ion
• An uncharged atom becomes charged as a result of transferring what ?

  Electrons
• What does exothermic mean ?

  Releases heat
• What is the unit for measuring energy ?


  Joule
• What is the scientific word for burning ?

  Combustion
• What is oxidation?


  Oxidation is a chemical reaction in which a substance loses electrons.
• How long ago were fossil fuels formed ?

  Millions of years ago
• What was the land covered with millions of years ago?

  Plants and animals
• What are the three types of fossil fuels ?

  Coal, oil, natural gas
• What do fossil fuels have stored inside them ?

  Chemical energy and carbon
• Why is crude oil called crude?

  Unrefined
• How is coal extracted ?

  Mining
• How is oil extracted ?

  Drilling
• How is carbon dioxide formed in fuels ?

  .When any fuel containing carbon is burned
• How does carbon dioxide affect the environment?

  Global warming
• How is carbon monoxide formed in fuels?

  Incomplete combustion