Module 12

  1. Who was James Clerk Maxwell?
    He studied Electromagnetism and put them to the test with many of his experiments.
  2. Who was James Maxwell's colleague?
    Michael Faraday.
  3. What types of charges attract?
    Negative (-) and positive (+).
  4. What types of charges repel?
    Like charges repel such as: (+) and (+) then (-) and (-).
  5. what are three principles regarding gravitational force?
    • All electrical charges attract one another.
    • The force between charged objects is directly proportional to the amount of electrical charge on each object.
    • The force between charged objects is inversely proportional to the square of the distance between the two objects.
  6. What are photons, and what are their purpose in electromagnetism?
    A photon is small package of light, and it's purpose is to act like a particle.
  7. What is charging by conduction?
    Charging by induction is, charging an object by allowing it to come into contact with an object that already has an electrical charge.
  8. What is charging by induction?
    Charging by induction is, charging an object without direct contact between the object and a charge.
  9. What is a(n) electrical current?
    A(n) electrical current is, the amount of charge that travels past a fixed point in an electric circuit each second.
  10. Which way do the electrons go on a circuit?
    They go from negative (-) to positive (+).
  11. What is a simple circuit?
    It is a simple diagram constructing of a battery, with a wire going from one end to the other.
  12. What is a(n) conventional current?
    A(n) conventional circuit is, a current that flows from the positive (+) side of the battery to the negative (-) side. This the way current is drawn in circuit diagrams, even though it is wrong.
  13. What is wrong with the conventional circuit?
    The flow is wrong, the flow is from positive (+) to negative (-) on a(n) conventional circuit.
  14. What type of metal gets heated up the most, on an electrical burner?
    Aluminum heats the quickest, and is heated the most.
  15. What is resistance?
    Resistance is, the ability of a material to impede the flow of charge.
  16. As electrons are flowing through a burner, what is happening.
    The resistance of metal produces heat and light.
  17. What happens when a circuit is opened.
    The opened part of the circuit s allowing electrons to stop flowing through the circuit.
  18. What is a(n) open circuit.
    A(n) circuit is best described as, a circuit that does not have a complete connection between the two sides of the power source, therefor the current does not flow.
  19. What part of the circuit is a switch?
    The part that moves up and down cutting off the flow of electrons.
  20. What happens when a switch is open?
    It means there is not a complete path from one side of the battery to the other, so the current cannot flow. As a result whatever is being powered will not turn on.
  21. What happens when a switch is closed?
    Once a switch is closed, there is a complete path from one side of the battery to the other, so current can flow. As a result, the light bulb is on.
  22. What is the purpose of a series circuit?
    It means that when two or more things are being powered, electrons flow through that thing to the next, therefor if a(n) light bulb, for example, goes out the rest of the bulbs will shut off.
  23. What is the purpose of a parallel circuit?
    It means that one circuit goes to one object while another circuit goes to another object, therefor in a(n) light bulb goes out, for example, the rest of the light bulbs will still stay on.
  24. What is the movement of charged particles?
    It is a prerequisite to magnetism, which includes magnets.
  25. What are the two parts of a(n) magnet called?
    They are called the north pole as in (+), and called the south pole as in (-).
  26. What is a big magnet, that has many magnetic field lines?
    The Earth and many other planets are huge magnets that have a north (+) and south (-) pole.
  27. What are the lines that travel around a magnet called?
    They are called magnetic field lines, for example the Earth is considered a big magnet, and in some diagrams it will picture lines around the Earth, these are called magnetic field lines.
  28. Between a (+) charge and a(n) (-) charge, what would they do, would the attract or repel?
    They would attract because opposite charges attract one another.
  29. Under what conditions is a electrical circuit reasonably safe?
    A low voltage and a low amp rate.
  30. Is it possible to have a magnet with only one pole?
    No it is not even close to possible, that a(n) magnet can have only one pole, also called a(n) (monopole).
  31. Would a thicker wire heat up quicker than a thin wire, or would a thin wire heat up quicker than a(n) thick wire?
    A thin wire will tend to heat up quicker that a thick wire.
  32. What is magnetism?
    It is the study of electromagnetism.
Card Set
Module 12
Module 12 Physical Science Apologia