Which of the following best explains why two nested Styrofoam cups are used in the experiment instead of a single Styrofoam cup?Group of answer choicesThe nested cups reduce the amount of heat lost in the measurement of temperature change.The nested cups are a safety precaution to minimize contact with corrosive chemicals.The nested cups create a sturdier calorimeter.The nested cups are a safety precaution to avoid touching hot surfaces.

Why are Styrofoam cups used for the calorimeter instead of a glass beaker?View keyboard shortcutsEditViewInsertFormatToolsTable

Cathy hypothesizes that plastic foam insulates cold drinks better than metal or ceramic materials do. To testthe hypothesis, she fills cups made from these materials with equal amounts of cold water. She records thetemperature of the water in each cup, using scientific thermometers, every 10 minutes until the waterreaches room temperature. Which of these conditions must be the same for this experiment to be valid?Group of answer choicesThe thermometer that is in each cupThe material of each cupThe ending temperature of the water in each cupThe starting temperature of the water in each cup PreviousNext

Look at the image below. Molly boils some water and pours it into a beaker. She records its temperature, covers it for 5 minutes, and then records its temperature again. She repeats this experiment with two different types of insulating material: newspaper and bubble wrap. Her results are below. If she repeated this investigation with no lids on the beakers, would the beakers transfer more or less energy to the surroundings?

Look at the image below. Molly boils some water and pours it into a beaker. She records its temperature, covers it for 5 minutes, and then records its temperature again. She repeats this experiment with two different types of insulating material: newspaper and bubble wrap. Her results are below. If she repeated this investigation with no lids on the beakers, would the temperatures after 5 minutes be higher, lower, or the same?

Identify the purpose of the following equipment in this experiment.Immersion heaterPolystyrene cupJoulemeterLid for the polystyrene cupPossible AnswersTo increase the temperature of the immersion heaterTo transfer energy to the liquidTo reduce thermal energy loss to the surroundingsTo reduce thermal energy loss from the liquid to the containerTo measure the energy being provided to the immersion heaterTo increase the temperature of the liquidI DON'T KNOWRESETSUBMIT ANSWER