Temperature , Thermal Energy and Heat test

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use the figure on the right to answer the question. why do you think the double plan window above contains an air? explain

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7th

science lesson 1

23 Terms

1

use the figure on the right to answer the question. why do you think the double plan window above contains an air? explain

air is good insulator of thermal energy. it slows down the transfer of heat

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2

what is the role of density in the formation and movement of convection currents ?

warm less dense water rises and the cold more dence water sinks

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3

thermal expansion

the expanding of matter when it is heated is known as thermal expension .

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4

what causes damage

the amount of force , speed , direction , mass , material

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5

temperature

a measure of how hot or cold something is with respect tona reference point

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6

celsius scale

water freezes at 0 degrees and boils at 100 degrees

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7

density

the measure of how much most of a substance is contained at a given volume

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8

absolute zero

the lowest temperature possible, the kinetic energy of individual particles is zero

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9

fahrenheit scale

water boils at 212 degrees water freezes 32 degrees

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10

convection

is a type of heat transfer that occurs only in fluids, such as water and air

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11

conduction

transfers heat from one particle of matter to another within an object or between two objects

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12

thermal conductor

a material that conducts heat well

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13

thermal insulator

materials that do not conduct heat well

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14

heat

the transfer of thermal energy from a warmer to a cooler object.

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15

kelvin scale

the temperature scale on which zero is the temperature at which no more energy can be removed from matter.

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16

radiation

is the transfer of energy by electromagnetic.

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17

thermal energy

thermal energy is the total energy of all the particles is an object

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18

temperature and mass

two factors that determine an objects thermal energy

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19

thermal energy in an object is defined as

the total energy of particles in an object

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20

how is heat transferred

it is transferred from warmer areas to cooler areas by conduction, convection, and radiation

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21

specific heat

to change the temperature of different objects by the same amount, different amounts of thermal energy required

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22

energy change

mass, specific heat, temperature change

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23

what is the way material respond to heat

conductor or insulators

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