1) The gas coming out of a chimney has very few smoke particles a) true b) false 2) What do the metal grids do when inserted into the chimney? a) tickle the dust particles in the smoke b) charge the dust particles in the smoke c) trap the dust particles in the smoke d) electricute the dust particles in the smoke 3) Why does the dust get stuck to the plate? a) it is repelled by the plate b) it's hotter than the plate c) it is oppositly charged than the plate d) it is the same charge as the plate 4) why do the dust balls fall back down the chimney? a) because they are repelled by the plate b) becase they are attracted to the floor c) because they become charged d) because they get heavy 5) what charges does the paint sprayer give the paint? a) positive b) negative c) doesn't matter aslong as they are all the same d) dosen't matter aslong as they are oppositely charged 6) What is the advantage of charging the paint? a) The droplets will stick to the object b) The droplets will be fine and spread out (repel) givng an even coat c) the droplets will attract together to deliver alot of paint to one place d) The droplets will be fine and spread out to use up the paint quicker 7) How would the object be charged compared to the paint? a) opposite b) same c) positive d) negative 8) what is the advantage of charging the object being painted? a) the paint spreads out b) the paint sticks to it c) you get an even coat d) more paint gets wasted 9) why are the difibrillator handles insulated? a) to make them more comfortable b) to protect bystanders c) to protect the patient d) to protect the operator 10) What type of charges do the paddles have? a) positive and negative b) positive c) negative d) positive and neutral 11) How does the charge move (across the heart) from paddle to paddle? a) from negative to positive b) from positive to negative c) from negative to neutral d) from positive to neutral 12) What does the heart do when the electric charge passes through the body? a) contract b) jump c) stop d) start 13) How does the paper become charged? a) light passes througn the paper to copy and the areas in shadow remain charged b) the paper is heated where the ink needs to go c) light passes through the original and the shadows become charged d) light passes through the original and heats up the paper 14) Why is the ink attracted to the paper? a) The tiny particles stick to the areas of the paper that are warmest b) The ink has the same charge c) The electrons in the small particles of ink are repelled from the charged paper and that leaves a positive charge that attracts the ink to the paper d) The ink is oppositly charged 15) Why is the paper warm when it comes out of the photocopier? a) Just becaue the machine gets hot as it works b) The heat is needed to set the ink c) The heat caused the ink to stick d) the heat makes the paper roll around the machine easier

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