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Friction is a force that opposes motion. When friction is present, heat is usually generated. According to the law of conservation of energy, which of the following statements is true about the energy associated with friction?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
Which of the following would BEST demonstrates how energy behaves?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
Larissa is a very energetic person and has a hard time sitting still in class. One time in math class, her teacher asked Larissa where she got all of her energy. Since Larissa had just studied energy in science class, she knew the correct answer. Wha
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
The following equation illustrates the chemical reaction that occurs in a plant. Water + carbon dioxide + light energy to sugar + oxygen. Based on the law of conservation of energy, what happened to the light energy in the reaction?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
Energy cannot be created nor destroyed, only changed from one form to another. How does listening to music on a radio obey the law of conservation of energy?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
As the cars of a rollercoaster race down a hill, energy transformations take place. Which of the following is true?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
The unit for energy is the joule (J). If the energy content of an object is 1,000 J, but then later it is found to be 900 J, what happened to 100 J of its energy?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
What cannot happen to energy according to the law of conservation of energy?
It was converted into chemical energy stored in the sugar.
The object transferred some of its energy to its surroundings.
Kendra performed an experiment to demonstrate friction by rubbing her hands together for 50 seconds. She noticed her hands be
“I just transform it.”
Electrical energy is converted into other forms of energy, such as sound.
Some potential energy is transformed to kinetic energy and other forms of energy.
Some of the energy is converted into thermal energy.
Energy cannot be created
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