Newton’s law of cooling with a low-cost thermoscope: physics in the time of covid-19

Filho, Luiz Artur Cordeiro; Ikeoka, Renato Akio

doi:10.1088/1361-6552/ac5c6c

Cited by 4 publications

(5 citation statements)

References 10 publications

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“…Because it has this behavior, the decrease in water temperature has an exponential pattern. Similar results were also reported by some author (Bastos et al, 2022;Elmardi, 2017;Galeriu, 2018). The process of reducing the temperature slows down with the increase of time and then stops when it reaches air temperature.…”

Section: Figure 5 Comparison Of the Pattern Of Water Temperature-chan...supporting

confidence: 90%

“…Based on this result, we know that either the increment or the decrement of water temperature has an exponential pattern. It exponentially increases when the water is heated and exponentially decreases when the hot water temperature is naturally cooling down to room temperature (Bastos et al, 2022;Vandervoort, 2020).…”

Section: Model For the Increment And Decrement Of Water Temperaturementioning

confidence: 99%

“…11 is an expression of Newton's law of heating, while Eq. 22 implies Newton's law of cooling (Bastos et al, 2022;Chanthamanee et al, 2022;Galeriu, 2018).…”

Section: Model For the Increment And Decrement Of Water Temperaturementioning

confidence: 99%

“…We have known that the model for decreasing water temperature is following Newton's law of cooling. Studies related to Newton's law of cooling have been reported by several authors (Aghayari et al, 2020;Bastos et al, 2022;Brody & Brown, 2017;Chanthamanee et al, 2022). However, the derivation of Newton's Law formula was not deeply discussed.…”

Section: Introductionmentioning

confidence: 99%

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Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Wibowo

Ulya

Farizi

et al. 2023

Momentum: Physics Education Journal

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A simple experiment has been conducted to study Newton's law of cooling and heating by observing the nature of the increasing and decreasing water temperature by utilizing a data logger, a thermocouple, a pan, a hot plate, and water. The uncovered pan contained water which was subsequently heated on a hot plate. The water was heated at ambient temperature and normal atmospheric pressure to see that the temperature rose exponentially. Conversely, the temperature of hot water decreased exponentially when the heat source was switched off. The model for increasing and decreasing water temperature is following the Newton's law of cooling and heating. It was proven that the experimental data highly fit theoretical models. The temperature increment constant (ka) and the temperature decrement constant (kd) determined the rate of temperature changes. Low values of ka and kd led to the slow change in the temperature, either the increase or the decrease in the water temperature and vice versa. The ka > kd was observed for all given conditions so that the increasing rate in the water temperature was faster than its decrease. The result of this study can be applied as an example of contextual learning of physics for university students.

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Section: Figure 5 Comparison Of the Pattern Of Water Temperature-chan...supporting

confidence: 90%

Section: Model For the Increment And Decrement Of Water Temperaturementioning

confidence: 99%

“…11 is an expression of Newton's law of heating, while Eq. 22 implies Newton's law of cooling (Bastos et al, 2022;Chanthamanee et al, 2022;Galeriu, 2018).…”

Section: Model For the Increment And Decrement Of Water Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Wibowo

Ulya

Farizi

et al. 2023

Momentum: Physics Education Journal

View full text Add to dashboard Cite

show abstract

“…The law successfully approximates cooling curves for temperature differences up to ∆T = 200 K [1]. Some previous studies introduced an experiment of Newton's law of cooling for high school to undergraduate students [1,2,[5][6][7][8]. Most aim to observe the cooling of water, coffee, or solid objects under different conditions.…”

Section: Newton's Law Of Coolingmentioning

confidence: 99%

Investigate the physics of instant noodles in a hot cup using Arduino temperature sensors

Prasitpong¹,

Phayphung²,

Rakkapao³

2022

Phys. Educ.

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The study explores the physics of cooking instant noodles in a hot cup using low-cost Arduino sensors developed as a thermocouple and an infrared thermometer. By pouring room temperature water onto a bag of calcium oxide (CaO) contained in the outside cup of the noodles, the exothermic reaction of CaO generates. Its energy is released into the water of the outside cup. This cooks the noodles, which are put into an inside cup. The amount of heat transferred to the water is measured. Moreover, the change in the temperature of the hot cooked noodles with time is investigated using Newton’s law of cooling. The experiment using the Arduino temperature sensors encourages undergraduate students to learn thermodynamics concepts from the instant noodles in a hot cup, primarily found in groceries.

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A new approach to determining the specific heat using the Arduino^® platform and Newton’s law of cooling

Martins,

Cruz,

Hahn

et al. 2024

Phys. Educ.

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This article describes a new approach for determining the specific heat of solid and liquid samples in an educational laboratory setting. The experiment employed automated data collection, using Arduino® to record temperatures as the system cooled. Samples of water, ethyl alcohol, lead, and aluminium were analysed by exchanging heat with preheated water in a non-insulated container. To identify the moments when the samples attained thermal equilibrium with the reference liquid, we employed the cooling curve adjusted using Newton’s law of cooling. This correction allowed us to uncover the exact points of equilibrium with enhanced accuracy. The results, both for solid and liquid samples, indicated the effectiveness of the method, due to its reasonable proximity to the expected values (e% < 10). This approach goes beyond the conventional calorimeter, proving its viability in testing various samples and thus enhancing research on the thermal properties of different materials.

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Newton’s law of cooling with a low-cost thermoscope: physics in the time of covid-19

Cited by 4 publications

References 10 publications

Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Investigate the physics of instant noodles in a hot cup using Arduino temperature sensors

A new approach to determining the specific heat using the Arduino^® platform and Newton’s law of cooling

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Newton’s law of cooling with a low-cost thermoscope: physics in the time of covid-19

Cited by 4 publications

References 10 publications

Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Derivation of Newton's law of cooling and heating: Heating the water then cooling it down naturally to the room temperature

Investigate the physics of instant noodles in a hot cup using Arduino temperature sensors

A new approach to determining the specific heat using the Arduino® platform and Newton’s law of cooling

Contact Info

Product

Resources

About

A new approach to determining the specific heat using the Arduino^® platform and Newton’s law of cooling