11
QuizMultiple Select

Lesson 3: Temperature and Heat

Question 11 • 350CR Integrated Science

What best describes the energy in a closed system at the beginning of a day and the energy at the end of the same day? Check all that apply.Some energy can disappear after it has caused motion.Some energy can be changed from one form to another.Some energy can be lost to the environment around the system.The total initial energy will be equal to the total final energy.The total initial energy will be greater than the total final energy.Friction can cause energy to be destroyed during the day.Friction can cause the amount of thermal energy to increase.

Answer
A
Some energy can disappear after it has caused motion.
B
Some energy can be changed from one form to another.
C
Some energy can be lost to the environment around the system.
D
The total initial energy will be equal to the total final energy.
E
The total initial energy will be greater than the total final energy.
F
Friction can cause energy to be destroyed during the day.
G
Friction can cause the amount of thermal energy to increase.

Explanation

Energy can change from one form to another, so some energy may become motion, sound, or heat rather than disappearing. In a closed system, energy is not transferred to the surroundings, and conservation of energy means the total energy at the beginning equals the total energy at the end. Friction changes some energy into thermal energy, increasing the amount of thermal energy without destroying energy.

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