Which of the following accurately explains the energy transformation that happens when a match is lit, and why? A Chemical energy is transformed to heat and light energy because the match head burns and changes color. B Heat energy is transformed to electromagnetic and light energy because the match head burns and creates flames. C Heat energy is transformed into light and chemical energy because the match head creates friction as it strikes the surface. D Chemical energy is transformed into heat and potential energy because the match head particles begin to move more rapidly when burning.

Suppose object A has quadruple the specific heat and double the mass of object B. If the same amount of heat is applied to both objects, how will the temperature change of A be related to the temperature change of B? Enter your answer to three significant figures. Temperature change of A = x (temperature change of B)

[References] Use the References to access important values if needed for this question. How much energy is required to raise the temperature of 10.7 grams of gaseous helium from 22.1°C to 38.7°C? The specific heat of helium is 1.24 cal/g °C. cal

Water droplets condensing on the inside of a window on a cold day. Is this process exothermic or endothermic? Gases condense to form liquids. Gases are moving faster than liquids, the air around the window has a higher temperature/kinetic energy. Releasing energy to get water droplets, which is is Exothermic Gases condense to form liquids. Gases are moving faster than liquids, the air around the window has a higher temperature/kinetic energy. Releasing energy to get water droplets, which is is Endothermic Gases condense to form liquids. Gases particles are moving slower than liquids. Releasing energy to get water droplets, which is is Endothermic Gases condense to form liquids. Gases particles are moving slower than liquids. Releasing energy to get water droplets, which is is Exothermic.