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
Energy~Forms
Forms of Energy
| Question | Answer |
|---|---|
| What is sound energy | vibrations that travel in waves through solids, liquids and gases |
| How does sound travel | In waves of vibrating molecules moving away from the source |
| Why does sound travel faster through solids | the molecules are the closest together |
| Can sound travel in outer space | no, because there arent any molecules to carry vibrations |
| The distance between the tops of two waves is called the | wavelength |
| How often a wave passes a certain point is called the | frequency |
| The height of a wave is called its | amplitude |
| What is the crest | the high point of a wave |
| Wavelength | the distance between two consecutive points on a wave (from crest to crest or trough to trough) |
| Trough | the low point of a wave |
| amplitude | the height of a wave relative to it's resting position |
| Why do you see lightning before you hear thunder | light travels faster than sound |
| reflect | the bouncing back of a light or sound wave after reaching a barrier |
| refract | when waves bend because something slows him down |
| absorb | when something takes in light |
| transmit | passing through something |
| emit | give off light |
| radio waves | lowest form or energy and frequency - long wavelength |
| visible light | the part our naked eye can see |
| gamma rays | radioactive materials that can kill body cells |
| mechanical energy | energy associated with moving parts |
| chemical energy | Energy stored in chemical bonds that hold energy together. This energy may be released when chemical bonds are broken (food) |
| Like charges | repel |
| Opposite charges | attract |
| what is electricity | the flow of electrons from one atom to another |
| How do electrons flow | negative to positive |
| When does static electricity occur | when an electric charge builds up in one place ~ when electrons make their jump from a negative to a positive atom it releases a static discharge |
| Series Circuit | *Electrons only follow one path *Share a voltage *If one bulb goes out, the other one will too because it will be an open circuit |
| Paralel Circuit | *Electrons have more than one path *Dont share voltage *If one goes out, other will stay lit |
Created by:
softball15
Popular Science sets