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Physics, 04.07.2019 15:00 sneckoencko
Agroup of students is investigating whether copper is a better thermal conductor than steel. the students take a copper wire and a steel wire of the same length and diameter. they put equal lengths of wax on one end of each wire and dip the other end into a beaker of hot water. the length of wax left on the wires after 10 minutes is shown. experimental observations: - original length of wax - copper: 3 cm - steel: 3 cm - length of wax after 10 minutes - copper: 0.7 cm - steel: 1.8 cm what was the dependent variable in this experiment? a. type of wire used b. original length of wire c. original length of wax d. thermal conductivity of wire
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