Term
|
Definition
| How hot or cold something is to a standard |
|
|
Term
| What does matter tend to do when its temperature increases? |
|
Definition
|
|
Term
| How does a thermometer work? |
|
Definition
| The liquid expands or contracts with added or lost Kinetic Energy |
|
|
Term
| Using Celsius and Fahrenheit scales. Which is more precise when temperatures are expressed to the nearest whole number? |
|
Definition
| Fahrenheit. Fahrenheit scale has 180 divisions between water freezing & boiling. The smaller degrees allow more precise reading. |
|
|
Term
| To what Energy is Temperature closely related? |
|
Definition
| Kinetic-movement of particles |
|
|
Term
| Does matter contain heat? |
|
Definition
| No. Heat is energy in motion from one object to a cold object |
|
|
Term
| Define heat in terms of energy. |
|
Definition
| Kinetic energy transferred from a hot object to a cold object is called heat |
|
|
Term
|
Definition
| When heat flows from one hot object to a cold object that its is touching |
|
|
Term
| Define thermal equilibrium. |
|
Definition
| Objects in thermal contact reach the same temperature. |
|
|
Term
|
Definition
| Addition of all the energies in a substance. (Rotational kinetic energy, potential energy, translational kinetic energy) |
|
|
Term
| Does a substance contain heat or internal energy? |
|
Definition
|
|
Term
|
Definition
| Amount of heat needed to raise 1 g of water 1 degree C. |
|
|
Term
|
Definition
| 1 kilocalorie = 1000 calories |
|
|
Term
| Generally, does all the energy absorbed by a substance raise its temperature? |
|
Definition
No, only increased translational KE increases temperature. Absorbed energy may:
(1) increase rotation of molecules
(2) increase internal vibration
(3) stretch intermolecular bonds |
|
|
Term
| What has more specific heat capacity, water or iron? |
|
Definition
| Water. Explanation: Iron responds to an increased KE with translational motion. Water responds to an increased KE with rotational motion, internal vibrations and bond stretching. |
|
|
Term
| What does a thermostat use to turn on and off heating and cooling devices? |
|
Definition
| Bimetallic strips or coils |
|
|
