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primary 5 | Maths
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Date Posted: 3 years ago
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(a) Rods E & F. The wax was placed at the same location for all rods, and these 2 rods took the same time for the wax to melt completely.
(b) Top left: Temperature of water
Bottom right: Time
(Explanation: Dependent and Independent variable, cause and effect. In this case, the temperature of water is affected by the duration of time passed. Hence independent variable, x axis, is time and the dependent variable, y axis, is temp of water)
(c) Material G. It loses heat to the environment at a slower rate, indicated by the slope of the curve, and reaches the equilibrium temperature at a later time as compared to material D.
(b) Top left: Temperature of water
Bottom right: Time
(Explanation: Dependent and Independent variable, cause and effect. In this case, the temperature of water is affected by the duration of time passed. Hence independent variable, x axis, is time and the dependent variable, y axis, is temp of water)
(c) Material G. It loses heat to the environment at a slower rate, indicated by the slope of the curve, and reaches the equilibrium temperature at a later time as compared to material D.
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