Question
0 1 2 The student wrote the following hypothesis: "The black-coloured flask will emit more infrared radiation than the silver-coloured flask during 10 minutes of cooling. Describe a method to test this hypothesis. [6 marks]
Answer
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Sinead
Elite · Tutor for 8 years
Answer
A possible method to test the hypothesis includes:1. Obtain two same-sized flasks - one black and one silver.2. Fill both flasks with the same volume and temperature of liquid.3. Allow the flasks to cool for exactly 10 minutes.4. Measure the emitted infrared radiation from both flasks using an Infrared Radiation Meter.5. Record this data and assess whether the infrared emissions from the black-colored flask are larger than that from the silver flask.
Explanation
To test the hypothesis provided - which posits that a black-colored flask will emit more infrared radiation than a silver-colored flask over a 10 minute cooling period - a suitable experiment must be designed. The essential components of this experiment require: (1) Utilising two same-sized flasks, one black and one silver, to ensure that any observed differences in infrared radiation emission can be attributed to the difference in color only. (2) Filling both flasks with the same volume and temperature of liquid. The same liquid should be used to insured consistency between the samples. (3) Allowing the flasks to cool for exactly 10 minutes to directly cater to the hypothesis. (4) Measuring and recording the amount of emitted infrared radiation from both flasks. This measurement can be achieved by using an Infrared Radiation Meter (this specific device measures infrared radiation). (5) Collecting data and making final conclusion based on a comparative analysis of infrared emissions from both flasks matching this with the original hypothesis.