Chemistry H Unit 1 Test 9-16-22

Question 1

energy

Answer 1

bigger term that includes potential energy (graviational, chemical, etc,) and kinetic energy (sound, elastic, etc.)

Question 2

heat

Answer 2

subset of energy (kinetic energy) / total thermal energy of a system (J)

Question 3

temperature

Answer 3

average kinetic energy (°C)

Question 4

thermal conductivity

Answer 4

movement of heat (how fast heat can be transmitted)

Question 5

heat capacity

Answer 5

how much heat that could be held (how much heat can be transmitted)

Question 6

Convection

Answer 6

A liquid or gas rises as it is heated and sinks as it cools, moving heat

Question 7

Conduction

Answer 7

Heat pases from atom to atom through a solid

Question 8

Radiation

Answer 8

Heat moves as electromagnetic waves through air or space

Question 9

accuracy

Answer 9

how close a number is to the true value

Question 10

precision

Answer 10

how close a number is to the other values

Question 11

How does density change through heat?

Answer 11

Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume while not changing the mass that results in a decrease in density.