The Transfer of Heat

On a sunny day you return to your car after a ball game. The inside of the car is very hot. How did the car get so warm?

• conduction

• convection

• radiation

• specific heat

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Heat is transferred directly from one particle of matter to another by the process of

A circular flow of warmer fluid and cooler fluid is called a (n)

Heat is always transferred from ----------areas

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Heat that is transferred by the movement of currents within a fluid is called_______

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Heat

• The total kinetic and potential energy of all the particles in an object.

• Energy that is transferred from a warmer object to a cooler object.

• A measure of the average kinetic energy of the particles in a substance.

• The heating of a substance that causes its particles to move more quickly.

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John put a heat pack on his cold feet. What will most likely be the result?

• • The cold from John’s feet will be radiated into the heat pack. 

• The warmth of the heat pack will be radiated onto John’s feet.

• The cold from John’s feet will be conducted into the heat pack.

• The warmth of the heat pack will be conducted onto John’s feet.

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Which best explains why the temperature inside the greenhouse is higher than the temperature outside the greenhouse?

• The sun’s rays radiate heat into the greenhouse, and then the warmed air is convected inside the greenhouse. 

• The sun’s rays conduct heat into the greenhouse, and then the warmed air is radiated inside the greenhouse. 

• The warm air outside passes into the greenhouse by convection, and then the warm air is conducted inside the greenhouse.

• The cool air outside passes into the greenhouse by radiation, and then the cool air is conducted inside the greenhouse.

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Which will most likely occur when a raw egg is placed on black pavement on a hot, summer day?

• • The pavement will conduct the heat and cook the egg. 

• The egg will reflect the heat and make the pavement hotter underneath.

• The egg will absorb the heat and leave the pavement hotter underneath.

• The pavement will absorb the heat from the egg, and the egg will stay raw.

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Which is the best example of heat transfer by radiation?

• cooling off in a pool on a hot day

• burning your hand on a hot stove

• • getting warm by sitting near a campfire 

• melting ice by dropping it into boiling water