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Final Exam Review
Quiz by Marsha Dunn
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14 questions
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- Q11 Which substance is most likely classified as a colloid?PaintFogWaterSoda30s
- Q2Atoms of which two elements will form an ionic bond?Fe and CoN and OH and OMg and Cl30s
- Q3Why are beta particles able to penetrate objects better than alpha particles are?Because Beta particles are smaller than Alpha particlesbecause beta particles are larger than alpha particlesbecause beta particles are negatively charged, while alpha particles are neutralbecause beta particles travel in a straight line, while alpha particles travel in waves30s
- Q4How 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
- Q5How could the strength of an electromagnet be increased?by using rubber material as the core for the electromagnetby decreasing the amount of current in the electromagnetby increasing the number of coils in the wires of the electromagnetby reducing the length of the core of the electromagnet30s
- Q6Why 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 mass30s
- Q7Why 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
- Q8Which type of friction occurs when an eraser is rubbed across a sheet of paper?rollingstaticfluidsliding30s
- Q9Two 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 zeroThey each exert the same amount of friction against the ground, so the net friction is zeroThe two students have the same mass.30s
- Q10Which is an example of a mixture?iron filingsbronze platecopper wiretitanium plate30s
- Q11Which two elements have the same number of valence electrons?Cl and FGa and GeC and ONa and Mg30s
- Q12Which is the chemical formula for magnesium hydroxide?MgOH2Mg(OH)2Mg2OHMgOH30s
- Q13Which is the correct name for the compound NaNO3?sodium nitratesodium nitrous acidsodium nitrogen oxidesodium nitrogen trioxide30s
- Q14Which group is in order of increasing ability to penetrate an object?protons, electron, neutrongamma, beta alphabeta, gamma, alphaalpha, beta, gamma30s