Term
| On November 8,1895 this man discovered x-rays: |
|
Definition
Wilhelm Conrad Roentgen
Note: For his discovery he received a Nobel Prize in 1901 |
|
|
Term
| X-rays are a type of electromagnetic radiation in what direction do they travel at the speed of light? |
|
Definition
| In a straight line, they cannot curve around a corner. |
|
|
Term
True or False:
An xray beam can be focused to a point. |
|
Definition
|
|
Term
| An attraction between the positive protons and the electrons is called: |
|
Definition
Electrostatic Force
Note: The higher the atomic number of an atom (more protons), the higher the electrostatic force will be for all electrons |
|
|
Term
| What force pulls the electrons away from the nucleus? |
|
Definition
|
|
Term
| If the distance between waves decrease the wave length becomes shorter what occurs in regard to frequency? |
|
Definition
|
|
Term
| Distance from the crest of one wave to the crest of the next wave is: |
|
Definition
|
|
Term
| The number of waves in a given distance |
|
Definition
|
|
Term
True or False
X-rays that have a shorter wavelength can penetrate farther |
|
Definition
|
|
Term
Referring to energy, if the wavenlength is short and the frequency is high will it have high or low energy?
|
|
Definition
|
|
Term
| What two electrodes do an x-ray tube consist of? |
|
Definition
- Cathode (Negative Charge)
- Anode (Positive Charge)
|
|
|
Term
| The x-ray beam is made of bundles of energy like: |
|
Definition
|
|
Term
| When electricity flows through the filament in the cathode, it causes it to get hot and release electrons which surround the filament this is called? |
|
Definition
Thermionic Emission
Note: The hotter the filament gets the greater the number of electrons that are released |
|
|
Term
True or False
Copper helps to reduce heat away from the target |
|
Definition
|
|
Term
| 99% of E+ is converted into heat the other 1 % is converted into what? |
|
Definition
|
|
Term
| Where are electrons released from? |
|
Definition
|
|
Term
| What type of material keeps the x-ray beam from scattering? |
|
Definition
|
|
Term
| The ability of a substance to emit visible light is: |
|
Definition
|
|
Term
| Electromagnetic radiation, beyond the red end of the visible spectrum, characterized by long wavelengths: |
|
Definition
|
|
Term
| A process in which an outer electron is removed from the atom so the atom is left positively charged: |
|
Definition
|
|
Term
| Electromagnetic radiation, beyond the violet end of the visible spectrum, that is characterized by short wavelengths |
|
Definition
|
|
Term
| A basic part of matter that consists of a nucleus and surrounding cloud of electrons |
|
Definition
|
|
Term
| A process in which an electron is moved to a higher energy level within the atom |
|
Definition
|
|
Term
| A bundle of radiant energy is called: |
|
Definition
|
|
Term
| A postively charged particle located within the nucleus of an atom: |
|
Definition
|
|
