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Library
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When you hook up a battery to a complete circuit, what flows through the wires from
one pole of the battery to the other?
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Eduardo pours himself a glass of cola with ice in it. Identify which objects are solid,
liquid, and gas.
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Leshawna used the same force in the same way to push on three boxes. The boxes
weighed 3 kg, 5 kg, and 10 kg. Which box moved most quickly, and which moved
most slowly?
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PAPER CLIP ELECTROMAGNETS
Rachel made four electromagnets by winding coils of copper wire around a nail. She connected each end of the wire to a battery to form an electromagnet which she
used to pick up paper clips.
In this experiment, what kind of energy is changed directly into magnetic energy?
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The two magnets were placed near each other on a table top. Which statement about the magnetic force of these two magnets is true?
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CHANGING STATES
What change of state is shown?
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Which energy change is usually made directly?
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Look at the diagram. Each circle shows one state of matter. The arrows show ways that matter might change state. For example, arrow 2 shows that matter can change from a liquid to a gas. A pan of water boiling on a stove would match arrow 2. Heating a substance almost never causes the change shown by arrow
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You want to measure the volume of a rock. The best way to do this is with
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A small ball is dropped down one end of a pipe. When air is blown in from the opposite end, the ball stops in the pipe. Which is a probable explanation?
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