Science Energy Procedural 12–13 yrs

Heating experiments and Q = mcΔT

加热实验与公式 Q = mcΔT

Description

Plan and carry out experiments to measure energy transferred during heating, including using the equation Q = mcΔT, recording temperature changes over time, and evaluating sources of error

Mastery Evidence

✓ Uses a thermometer and stopwatch to record temperature change over time in a heating experiment
✓ Applies Q = mcΔT to calculate the energy transferred to a substance being heated
✓ Identifies sources of energy loss in a heating experiment (e.g. heat to surroundings) and suggests improvements
✓ Plots a temperature-time graph and identifies the energy transfer rate from its gradient

Assessment Prompt

If your child heated 100 ml of water in a beaker and recorded the temperature every minute, could they plot the results on a graph and use the data to work out roughly how much energy was transferred to the water?

Prerequisites 1

Efficiency, Sankey diagrams, and work done

科学 · 12–13y

加热实验应用了 Q = mcΔT 公式和效率概念——在进行实验操作之前，必须先理解这些计算方法

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