Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
UNIT IV ENERGY FORCE
UNIT IV ENERGY FORCE STUDY GUIDE
| Question | Answer |
|---|---|
| Where does all energy originate (come) from? | The Sun |
| The energy of a substance due to the motion/vibration of its atoms is called_________________. | thermal energy |
| The energy carried by waves in the electromagnetic spectrum is called _________________. | radiant energy |
| If you raise an object above the ground, you give it_______________. | gravitational potential energy |
| If the particle motion ________________, temperature _______________. | increases, increases |
| If you have two samples of water and each has a mass of 1 kg. Sample A has a temperature of 90* C and Sample B has a temperature of 70*C, which statement is correct? | The Kinetic Energy and thermal energy of Sample A is greater than Sample B. |
| What is the difference between temperature and heat? | Temperature is a measure of the average kinetic energy of the atoms or molecules of a substance. Heat is the energy that is transferred from one substance to another. Objects cannot possess heat but they do possess kinetic energy. |
| Compare the three methods of heat transfer -- conduction, convection, and radiation. | Conduction is the transfer of heat through physical contact. Convection is the transfer of the heat by circulation of a heated fluid (liquid or gas). Radiation is the transfer of heat by electromagnetic radiation. |
| What is temperature? | The measure of the average kinetic energy of the atoms or molecules of a substance. |
| What unit is thermal energy measured in? | Joules |
| What is heat? | The transfer of thermal energy from a hot object to a less hot (colder) object. |
| What is the original source of all energy on Earth? | The Sun |
| ______________ is the transfer of thermal energy in solids through direct contact from higher to lower temperature objects. | Conduction |
| In a furnace-heated home, why does the colder air fall back down to the furnace? | As the furnace heats the air, it rises. Colder air is denser and so it falls down towards to furnace to take its place. |
| Why do houses sometimes become colder in the attic than the basement if heat is less dense and rises? | The transfer of heat cannot circulate or convection. |
| A pot sitting on a hot burner. (conduction, convection, and radiation) | Conduction |
| Heating a house with a furnace. | Convection |
| The Sun heating the Earth. | Radiation |
| Getting a tan on a beach. | Radiation |
| Touching hot pavement in the summer. | Conduction |
| Cooking a roasting the oven. Choose the best answer. | Convection |
| Macaroni rising and falling the in a pot of boiling water. | Convection |
| Using a hearing blanket to get warm. | Conduction |
| Getting warm by sitting in from of a fire. | Radiation |
| Warming air rising. | Convection |
| Anything with molecules has __________________. | heat |
| What is the difference between hot and cold things in regards to the motion of their molecules? | The molecules in warm things are moving aster than the molecules in cold things. |
| Explain why the ice sculpture has more heat energy than the burning match. | There are a lot more molecules in the ice sculpture. More molecules, more heat energy. |
| What kind of heat transfer occurred when Bill felt from the burning match? | Radiation |
| How does convection create wind? | Hot air rises creating low-pressure areas and cold air sinks, creating high-pressure areas (convection |
Created by:
amillerscience
Popular Physical Science sets