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RAD156 Jeopardy
EM radiation, Electricity, magnets
| Question | Answer |
|---|---|
| A form of energy that originates from the atom? | Electromagnetic Radiation |
| The study of stationary charges. | Electrostatics |
| The only difference between X-rays and gamma rays is this | Their origin |
| Photons exhibit this type of behavior | Wave particle duality |
| The velocity of X-ray photons | Speed of light (3x10*8 m/s) |
| This causes electrons to move in a conductor | Potential difference (voltage) |
| The intensity of electromagnetic radiation diminishes over distance. This is an application of this rule. | Inverse square law |
| Has the ability to block magnetic fields | Nothing |
| What is the unit of electrical power? | Watts |
| What law states that the resistance in a circuit is equal to the voltage divided by the current? | Ohm’s law |
| The lowest energy range of the electromagnetic spectrum | Radio waves |
| EM Radiation is measured using what term? | Hertz |
| Gamma rays are produced in the _________ of the atom | Nucleus |
| The energy of a photon is directly proportional to its? | Frequency |
| The unit of electric potential | Volt |
| The flow of electrons in a conductor | Current |
| Electrons that flow in only one direction represents this | DC (direct current) |
| The smallest quantity of any type of electromagnetic energy | Photon |
| What is the equation for the velocity of all electromagnetic radiation? | 3x10*8 m/s |
| What are the three wave parameters needed to describe electromagnetic energy? | Velocity, frequency, wavelength |
| What are the rings rotating around an electron in motion? | The magnetic field |
| Materials that are weakly repelled by either magnetic pole | Diamagnetic |
| Adding an iron core to a magnetic field will do this | Intensify the magnetic field |
| The unit of measure for magnetic field strength | Tesla (T) |
| Transformers operate on this type of current | AC |
| What is the potential difference in terms of X-ray control panel | kVp |
| This does not convert one form of energy to another but changes electrical potential and current into higher and lower intensity. | Transformer |
| The most efficient type of transformer | Shell type |
| The flow of electrons in a conductor | Current |
| Electrons can flow through or on one of these | Conductors |
| The ampere is also known as this | Current |
| V=IR | Ohm’s law |
| P=IV | Electric power |
| Plastic, rubber, and glass | Insulators |
| These materials possess the ability to conduct and insulate | Semi-conductors |
| Materials used, the length, the cross-sectional diameter, and temperature | The factors affecting resistance |
| Device used to convert electrical energy into mechanical energy | Motor |
| A step up transformer will do this | Increase voltage and decrease current |
| According to Ohm’s law, what would the voltage be in the resistance is 8 ohm and the current is 16 ampere? | 128 |
| According to Ohm’s law, what would the resistance be if the voltage is 220 volt and the current is 30 ampere? | 7 ohm |
| 5 ohm, 6 ohm and 4 ohm resistors connected in a series would result in a total resistance of how many ohms? | 15 |
| A step up transformer works on this principle | Mutual induction |
| AC or DC will cause inductance | AC |
| Electromagnetic induction requires a conductor and this | Changing magnetic field |
| Another name for magnetic lines | Flux |
| This is present around all electrical currents | Magnetic field |
| According to the right hand thumb rule, which direction would the magnetic field be if the current is moving toward you? | Counter clockwise |
| Parallel resistors of 2 ohm, 6 ohm and 7 ohm would result in a total resistance of how many ohm? | 1.23 ohm |
| Based on electrostatics and potential difference, electron flow means electrons do this. | Flow from negative to positive |
| Electrons move from areas of ___________ to ____________ concentration. | Highest; lowest |
| Friction, contact and induction are methods of this term. | Electrification |
| Process of charging an object by adding or subtracting electrons | Electrification |
| Study of fixed electric charges or charges at rest. | Electrostatics |
| This element is the best known conductor | Silver (Au) |
| The measurement of electromotive force (EMF) ie: pushing | Volt |
| This type of material is weakly repelled by a magnetic field | Diamagnetic |
| What is the center of an atom | Nucleus |
| Which is the coil being induced in mutual induction? | The secondary coil |
| These three things affect differential absorption. | What is the atomic #, mass density of tissue, and X-ray energy (kVp) |
| Characteristic X-rays, an ionized atom and a photo electron are by products of this | Photoelectric absorption |
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