Biology

Biology, 18.08.2019 19:50, lovebunny33921

The amount of energy in foods is measured in?

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Biology, 04.07.2019 10:40, brenda2512

Temperature change burning food food sample mass of food (g) starting water temperature (c) final water temperature (c) saltine cracker 2 22 23.5 pecan 2 22 30.5 dorito chip 2 22 28.0 peanut 2 22 29.0 cheeto 2 22 24.5 all foods contain chemical energy, but the amount of chemical energy is dependent of the type of food. the larger the compound, the more chemical bonds, and the greater amount of available chemical energy. we refer to the stored chemical energy in foods as calories. a calorie is the amount of energy required to raise the temperature of 1 gram of water 1 degree celsius. when we refer to the calories in food, we are really talking about kilocalories or 1000 calories. biology students used calorimetry to determine the energy provided by various food samples. they picked food samples of the same mass, 2 grams, and then set the food on fire using kitchen matches. the heat energy of the flaming food was used to heat 100 ml of water. student results can be seen in the chart above. what is one condition that may have reduced the accuracy of the temperatures recorded by the student groups? a) type of foods used in the experiment b) placement of thermometers in the cans c) mass of food items used in experiment d) amount of water measured into the cans

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Biology, 04.07.2019 16:10, talia43

Food sample mass of food (g) starting water temperature (c) final water temperature (c) saltine cracker 2 22 23.5 pecan 2 22 30.5 dorito chip 2 22 28.0 peanut 2 22 29.0 cheeto 2 22 24.5 all foods contain chemical energy, but the amount of chemical energy is dependent of the type of food. the larger the compound, the more chemical bonds, and the greater amount of available chemical energy. we refer to the stored chemical energy in foods as calories. a calorie is the amount of energy required to raise the temperature of 1 gram of water 1 degree celsius. when we refer to the calories in food, we are really talking about kilocalories or 1000 calories. biology students used calorimetry to determine the energy provided by various food samples. they picked food samples of the same mass, 2 grams, and then set the food on fire using kitchen matches. the heat energy of the flaming food was used to heat 100 ml of water. student results can be seen in the chart above.question: what is one condition that may have reduced the accuracy of the temperatures recorded by the student groups? options: a) type of foods used in the experiment b) placement of thermometers in the cans c) mass of food items used in experiment d) amount of water measured into the cans

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Health, 14.07.2019 17:00, student0724

Which of the following describes the main difference between energy that comes from simple foods (such as sugar or candy) and those that are complex (such as oatmeal)? a. simple foods are less harsh on the digestive system; therefore, simple foods are easier to digest. b. the body prefers simple foods because they provide more energy than complex foods. c. complex foods need more cooking time; therefore, they're less nutritious than simple foods. d. it takes time and energy for your body to break down more complex foods, whereas simple foods are broken down more quickly.

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Physics, 20.10.2019 00:20, potatocow

L 15. stored energy or energy due to position is known as energy 16. the formula for calculating potential energy is _ 17. the three factors that determine the amount of potential energy in an object are 2 and 18. potential energy is measured in units of 19 mass must be measured in units of 20. gravitational pull must be measured in units of 21. the value of the g constant (the acceleration of all objects due to gravity) on earth is 22. height must be measured in units of 23. kinetic energy is the energy matter has as a result of its and 24. the more mass an object has the (more / less ) kinetic energy it has. 25. the more speed an object has the more / less ) kinetic energy it has. 26. the si (metric) unit for energy is and the symbol is

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