Study

year 7

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  • What type of energy is food and fuel
    chemical energy
  • What are the 3 types of rocks
    igneous, sedimentary and metamorphic
  • What is the process called when magma cools to make igneous rock?
    crystallisation
  • What is the 2 most abundant gases in our atmosphere?
    Nitrogen and oxygen
  • How long does it take for the Earth to go around the Sun?
    1 year (365.25 days)
  • What does porous mean?
    Has tiny holes throughout the rock so water and air pass through it
  • What does subduction mean?
    Melting of metamorphic rock
  • If we don't want/use a specific energy what can we call that
    wasted energy
  • What type of circuit is this?
    Series
  • What does conservation of energy mean?
    Energy cannot be created or destroyed, only transferred
  • If a series circuit had 3 bulbs and 1 broke what would happen to the rest of the bulb?
    They would turn off (the circuit is incomplete)
  • What is the inner core made out of
    Solid nickel and iron
  • In a series circuit what happens to the voltage
    splits across components
  • what is the energy transfer of a diver jumping off a diving block
    gravitational potential energy --- kinetic energy
  • What do we use to measure voltage (P.d)
    voltmeter
  • What are the planets in order? (Starting with the closest to the sun)
    mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
  • What does this symbol mean?
    Bulb
  • What does this symbol mean?
    Battery
  • What do we use to measure current
    Ammeter
  • How do we have night and day on Earth?
    It rotates (1 side is facing the sun and the other isn't)
  • What do i mean by the efficiency of a device
    How much of the output energy is useful compared to wasted
  • In a series circuit what happens to the current
    stays the same everywhere
  • What is the energy transfer when turning on a TV
    chemical --- light, sound and heat
  • What type of circuit is this?
    Parallel
  • If a parallel circuit had 3 bulbs on different branches and 1 broke what would happen to the other bulbs?
    They would stay on