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Jugar Froggy Jumps
    • 1. In an atom, electrons are the particles that orbit the nucleus.
    A
    True
    B
    False
    C
    2. Electric current is produced when protons and neutrons repel each other.
    A
    True
    B
    False
    C
    3. A stable atom has the same number of electrons as protons.
    A
    True
    B
    False
    C
    4. Electrons attract each other because they have the same electrical charge.
    A
    True
    B
    False
    C
    5. In an electric circuit, electricity flows through the wires from the battery to the battery
    A
    True
    B
    False
    C
    6. Inside storm clouds, ice particles bump into each other and become electrically charged.
    A
    True
    B
    False
    C
    7. Lightning is a form of static electricity.
    A
    True
    B
    False
    C
    8. When you comb your hair, the comb pulls neutrons off the hair molecules.
    A
    True
    B
    False
    C
    9. Electric current can easily be stored.
    A
    True
    B
    False
    C
    10. Electricity is a very safe type of energy.
    A
    True
    B
    False
    C
    11. Which pole of a magnet attracts the north pole of another magnet?
    A
    North Pole
    B
    South Pole
    C
    12. Which metal will a magnet attract?
    A
    steel
    B
    gold
    C
    13. What can we use to show the magnetic field of a magnet?
    A
    iron filings
    B
    water
    C
    14. How do we represent the direction of the force in a magnetic field?
    A
    with circles
    B
    with arrows
    C
    15. What can we use to test if an object is a magnet?
    A
    a paperclip
    B
    another magnet
    C
    16. The north pole of the magnetosphere is at the geographical South Pole.
    A
    True
    B
    False
    C
    17. The centre of the Earth is made up of magnetised, solid iron.
    A
    True
    B
    False
    C
    18. The magnetosphere protects us from the Sun.
    A
    True
    B
    False
    C
    19. We can use a compass to find the magnetic north and south poles of the Earth.
    A
    True
    B
    False
    C
    20. A compass needle is made of gold or silver.
    A
    True
    B
    False
    C
    21. Who discovered the connection between magnetism and electricity?
    A
    Faraday
    B
    Oersted
    C
    22. What did Ampere do?
    A
    He discovered the electrodynamic molecule.
    B
    He invented the first electric motor.
    C
    23. What name do modern scientists use instead of "electrodynamic molecule"?
    A
    electromagnetic rotary device
    B
    electron
    C
    24. What modern electric machine is based on Faraday´s work?
    A
    the dynamo
    B
    the television
    C
    25. What effect does an electric current have on a compass needle?
    A
    It moves it.
    B
    It produces light energy.
    C
    26. Does an electric bell need electric current to work?
    A
    yes
    B
    no
    C
    27. Does a Maglev have wheels?
    A
    yes
    B
    no
    C
    28. Does the track for the Maglev need magnets on both sides?
    A
    yes
    B
    no
    C
    29. Does a speaker transform electric current into sound?
    A
    yes
    B
    no
    C
    30. Does a microphone transform electric current into sound?
    A
    yes
    B
    no
    C
    31. Who discovered the electron?
    A
    Oersted
    B
    Faraday
    C
    32. What chemical effect does electricity have?
    A
    electrolysis
    B
    thermal energy
    C