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Waves Vocabulary
| Question | Answer |
|---|---|
| Diffraction | The bending of a wave and an obstacle |
| Longitudinal waves | waves in which the matter in the medium moves back and fourth along the direction that the wave travels |
| trough | lowest point on a transverse wave |
| Mechanical waves | a wave that can only travel through matter |
| Period | horizontal row in the periodic table |
| Rarefraction | the less dense region of the longitudinal wave |
| Refraciton | the bending of a wave caused by a change in its speed |
| resonance | the process by which an object is made to vibrate by absorbing energy |
| crest | highest point on a transverse wave |
| Transverse waves | wave in which the matter in the medium makes at right angles to the direction of the wave |
| Medium | matter through which a transverse wave |
| Amplitude | the measure of the size of disturbance from a wave related to the energy that it carries |
| Node | a point in which a standing wave at which the interfering waves always cancel |
| Electromagnetic waves | waves created by vibrating electric changes; consistent of vibrating electric and magnetic fields and can travel through matter |
| Compression | denser region of a longitude wave |
| wavelength | distance between one point on a wave and the nearest point to it |
| Interferance | the process of two or more waves overlapping and combining to form a new wave |
| wave | reporting disturbance that transfers energy as it travels through matter or strength |
| standing wave | a wave pattern that forms when waves of equal wave lengths and amplitude but traveling in opposite directions |
| Frequency | the number of wavelengths that pass a fixed point each second |
| Electromagnetic waves | electric and magnetic waves released by aa vibrating electric charge, capable of transferring energy through a vacuum |
| How fast do electromagnetic waves travel | 300,000,000 m/s |
| waves | a disturbance that can carry energy |
| particles | peices of matter |
| photon | massless bundle of energy |
| electromagnetic spectrum | the entire range of frequencies of electromagnetic radiation |
| radio waves | emitted by radio stations, MRI's, RADAR, Wi-Fi, TV, and cell phones |
| Longer wavelength with the _______ frequency | lowest |
| microwaves | used for cooking, doppler radars, and GPS |
| Infrared waves | used in night vision goggles, remote controls, and infrared photography |
| Visible light waves | the only electromagnetic waves we can see, given off by the sun and light bulbs |
| ROYGBIV | red is the longest and violet is the shortest |
| ulraviolet waves | given off by the sun: used in light bulbs, to kill bacteria, and by the human body to make vitamin D |
| X-Rays | used to take pictures of bones to check for breaks and fractures, also used in CAT scans |
| Gamma Rays | used to kill cancer cells, sterilize medical equipment, and in radioactive tracers |
| Reflection | when a wave strikes an object and bounces off of it |
| law of reflection | angle of incidence is always equal to the angle of reflection |
| refreaction | the bending of waves caused by a change in its speed as it moves from one medium through another |
| How do prisms work | light wave enter into a prism and slow down due to the change in medium. This causes the waves to bend as they move through the new medium |
| difraction | when an object causes a wave to change direction and bend around it |
| depends on: | size of the object the wave hits the wavelength of the waves |
| absorption | when a wave strikes an object and goes into it |
| interference | when two or more waves combine to form a new one |
Created by:
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