8sw2 Yearly Science Exam

37 Questions | Total Attempts: 51

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8sw2 Yearly Science Exam

Year 8 - 2016 End of Year Science Exam


Questions and Answers
  • 1. 
    The particle of an atom with a positive charge is known as the:
    • A. 

      Neutron

    • B. 

      Proton

    • C. 

      Electron

    • D. 

      Particle

  • 2. 
    The particles that move around the nucleus of an atom are called:
    • A. 

      Neutrons

    • B. 

      Protons

    • C. 

      Electrons

    • D. 

      Ions

  • 3. 
    All atoms are made up of what 3 basic components?
    • A. 

      Nucleus, protons and electrons

    • B. 

      Ions, protons and electrons

    • C. 

      Electrons, protons and neutrons

    • D. 

      Elements, compounds and mixtures

  • 4. 
    In the table shown which letter best describes the characteristics of a metal?
    • A. 

      A

    • B. 

      B

    • C. 

      C

  • 5. 
    In the table shown which letter best describes the characteristics of a non-metal?
    • A. 

      A

    • B. 

      B

    • C. 

      C

  • 6. 
    In the picture shown, what is represented by line A?
    • A. 

      Atomic number

    • B. 

      Atomic mass

    • C. 

      Number of protons

    • D. 

      The group number

  • 7. 
    In the picture shown, which line represents the symbol for the element?
    • A. 

      B

    • B. 

      A

    • C. 

      C

    • D. 

      D

  • 8. 
    An element be broken down into a simpler substance
    • A. 

      True

    • B. 

      False

  • 9. 
    In the picture shown, what does the box labelled A represent? 
    • A. 

      Pure Element –only one typeof atom present

    • B. 

      Mixture of two elements –two types of uncombined atoms present.

    • C. 

      Pure compound –only one type of compound present

    • D. 

      Mixture of two compounds –two types of compounds present

    • E. 

      Mixture of a compound and an element.

  • 10. 
    In the picture shown, what does the box labelled B represent? 
    • A. 

      Pure Element –only one typeof atom present

    • B. 

      Mixture of two elements –two types of uncombined atoms present.

    • C. 

      Pure compound –only one type of compound present

    • D. 

      Mixture of two compounds –two types of compounds present

    • E. 

      Mixture of a compound and an element.

  • 11. 
    In the picture shown, what does the box labelled C represent? 
    • A. 

      Pure Element –only one typeof atom present

    • B. 

      Mixture of two elements –two types of uncombined atoms present.

    • C. 

      Pure compound –only one type of compound present

    • D. 

      Mixture of two compounds –two types of compounds present

    • E. 

      Mixture of a compound and an element.

  • 12. 
    The chemical formula for the compound salt is NaCl. Salt contains the elements:(hint = use the picture shown)
    • A. 

      Sodium and carbon

    • B. 

      Sodium and chlorine

    • C. 

      Chlorine and nitrogen

    • D. 

      Nitrogen and carbon

  • 13. 
    Most of the worlds electricity comes from the burning of:
    • A. 

      Alcohol

    • B. 

      Coal

    • C. 

      Oil

    • D. 

      Natural gas

  • 14. 
    Coal stores energy. The energy originally came from:
    • A. 

      The Earth

    • B. 

      The sun

    • C. 

      Chemicals

    • D. 

      Rocks

  • 15. 
    A natural fuel formed in the geological past from the remains of living organisms is known as:
    • A. 

      A fossil fuel

    • B. 

      Solar energy

    • C. 

      Geothermal

    • D. 

      Biomass

  • 16. 
    Which of these resources is non-renewable?
    • A. 

      Natural gas

    • B. 

      Wind

    • C. 

      Solar energy

    • D. 

      Hydroelectricity

  • 17. 
    Plants obtain the energy to make food from:
    • A. 

      Water

    • B. 

      Air

    • C. 

      Soil

    • D. 

      The sun

  • 18. 
    Which of the following is a fossil fuel?
    • A. 

      Oil

    • B. 

      Iron ore

    • C. 

      Solar energy

    • D. 

      Hydrogen

  • 19. 
    Which of the following is NOT a chemical change?
    • A. 

      Burning a match

    • B. 

      Dissolving sugar in tea

    • C. 

      Ripening of a banana

    • D. 

      Cooking a cake

  • 20. 
    Potential Energy (PE) is:
    • A. 

      The energy caused by the movement of an object

    • B. 

      Energy that is stored (like compressed springs)

    • C. 

      The energy that is used when a light is switched on

    • D. 

      The energy released when a runner gets hot

  • 21. 
    Batteries are stores of:
    • A. 

      Electrical energy

    • B. 

      Chemical energy

    • C. 

      Kinetic energy

    • D. 

      Acidic energy

  • 22. 
    Food is a source of:
    • A. 

      Electrical energy

    • B. 

      Chemical energy

    • C. 

      Kinetic energy

    • D. 

      Thermal energy

  • 23. 
    This image shows which method of heat transfer:
    • A. 

      Conduction

    • B. 

      Convection

    • C. 

      Radiation

    • D. 

      Thermal energy

  • 24. 
    This image shows which method of heat transfer:
    • A. 

      Conduction

    • B. 

      Convection

    • C. 

      Radiation

    • D. 

      Thermal energy

  • 25. 
    In which situation below is heat being transferred mainly by radiation?
    • A. 

      From a hot clothes iron to your hand held close to it

    • B. 

      From hot plate on the stove to the soup in the saucepan

    • C. 

      From a hot car door to your hand placed on the metal

    • D. 

      From a hot drink to the end of a metal spoon used to stir it

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