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Final Exam Review

Quiz by Marsha Dunn

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14 questions
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  • Q1
    1 Which substance is most likely classified as a colloid?
    Paint
    Fog
    Water
    Soda
    30s
  • Q2
    Atoms of which two elements will form an ionic bond?
    Fe and Co
    N and O
    H and O
    Mg and Cl
    30s
  • Q3
    Why are beta particles able to penetrate objects better than alpha particles are?
    Because Beta particles are smaller than Alpha particles
    because beta particles are larger than alpha particles
    because beta particles are negatively charged, while alpha particles are neutral
    because beta particles travel in a straight line, while alpha particles travel in waves
    30s
  • Q4
    How would decreasing the diameter of the wires in a circuit influence the resistance and flow of electrons in the circuit?
    It would increase the resistance, causing fewer electrons to flow through the circuit.
    It would decrease the resistance by allowing more electrons to flow through the circuit.
    It would increase the resistance by allowing more electrons to flow through the circuit.
    It would decrease the resistance, causing fewer electrons to flow through the circuit.
    30s
  • Q5
    How could the strength of an electromagnet be increased?
    by using rubber material as the core for the electromagnet
    by decreasing the amount of current in the electromagnet
    by increasing the number of coils in the wires of the electromagnet
    by reducing the length of the core of the electromagnet
    30s
  • Q6
    Why does a flat piece of notebook paper take longer to reach the ground than an identical piece of notebook paper crumpled into a ball?
    The frictional force of air has more effect on the falling flat piece of paper.
    The frictional force of air has more effect on the falling crumpled piece of paper.
    The flat piece of paper has more mass.
    The crumpled piece of paper has more mass
    30s
  • Q7
    Why does the weight of an object change with increasing elevation on Earth?
    The mass of the object decreases with higher elevation.
    The mass of the object increases with higher elevation.
    The force of gravity acting on the object decreases with higher elevation.
    The force of gravity acting on the object increases with higher elevation.
    30s
  • Q8
    Which type of friction occurs when an eraser is rubbed across a sheet of paper?
    rolling
    static
    fluid
    sliding
    30s
  • Q9
    Two students pull on the opposite ends of a rope, but neither student is able to move the other. Which statement best explains why neither student is moved?
    They each pull on the rope with the same amount of force, so the net force is zero.
    They each exert the same amount of friction against the ground, so the net friction is zero
    They each exert the same amount of friction against the ground, so the net friction is zero
    The two students have the same mass.
    30s
  • Q10
    Which is an example of a mixture?
    iron filings
    bronze plate
    copper wire
    titanium plate
    30s
  • Q11
    Which two elements have the same number of valence electrons?
    Cl and F
    Ga and Ge
    C and O
    Na and Mg
    30s
  • Q12
    Which is the chemical formula for magnesium hydroxide?
    MgOH2
    Mg(OH)2
    Mg2OH
    MgOH
    30s
  • Q13
    Which is the correct name for the compound NaNO3?
    sodium nitrate
    sodium nitrous acid
    sodium nitrogen oxide
    sodium nitrogen trioxide
    30s
  • Q14
    Which group is in order of increasing ability to penetrate an object?
    protons, electron, neutron
    gamma, beta alpha
    beta, gamma, alpha
    alpha, beta, gamma
    30s

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