Three Base Quantities

The combination of one or more base quantities.

It is based on speed of light.

Units of Weight: Newton (N) & pounds (lb)

It is based on the vibration of atoms of cesium.

It has a magnitude & a unit.

Which is not included in the four system of units?

Find the SI unit of the radiographic quantities.

Exposure

Find the SI unit of the radiographic quantities.

Dose

Find the SI unit of the radiographic quantities.

Equivalent Dose

Find the SI unit of the radiographic quantities.

Radioactivity

The segment of physics that deals with motion at rest (static) & objects in motion (dynamics)

It is sometimes called speed. The rate of change of its position with time.

Symbol: c

c= $$3\times10^8\ \frac{m}{s}\ or\ 1.86\times10^5\ \frac{mi}{s}$$

Symbol: $$\upsilon\$$ (w/ a $$-$$ at the top)

Formula= $$\upsilon=\frac{\left(V_f+V_o\right)}{2}$$

The rate of change of velocity with time.

He presented the fundamental laws of motion.

Newtons's First Law: Inertia

A body will remain at rest or will continue to move with constant ________ in a straight line unless acted on by an external force.

The property of matter that acts to resist a change in its state of motion.

Newton's Second Law: Force

The force (F) that acts on an object is equal to the ____ of the object multiplied by the _______ produced.

A push or pull on an object.

Newton's Third Law

For every action, there's an equal & opposite reaction.

A force on a body caused by the pull of gravity on it.

Symbol: g

Constant in SI Unit: $$9.8\ \frac{m}{s^2}$$

Constant in British Unit: $$32\ \frac{ft}{s^2}$$

The product of mass of an object and its velocity.

The force applied times the distance.

The rate of doing work. The quotient of work over time

The ability to do work.

States that energy may be transformed from one form to another but it cannot be created or destroyed.

The energy associated with the motion of an object.

The stored energy of position or configuration.

The KE of the random motion of molecules.

The heat necessary to raise the temperature of 1 g of water through 1^o C.

Which is not part of the Three Ways of Heat Transfer?

The transfer of heat through a material by touching.

The mechanical transfer of "hot" molecules in a gas or liquid from one place to another.

The transfer of heat by the emission of infrared radiation. An x-ray tube cools primarily by radiation.

It is measured with a thermometer.

3 Scales: Celsius, Kelvin, & Fahrenheit

The cooling agents used in MRI.

The quotient of two numbers.

The quotient is less than one.

The quotient is greater than one.

Find a common denominator then add or subtract.

Simply multiply numerator & denominator.

Invert the second fraction & multiply.

It expresses the mathematical relationship between two similar quantities.

It expresses the equality of two ratios.

System of numbers that is based on multiples of 10.

If there are digits to the left of the decimal point, the exponent will be positive.

If there are no nonzero digits to the left of the decimal point, the exponent will be negative.

Symbol: h

Constant:

4.15 x 10^-15 Ev-s

6.63 x 10^-34 Js

Multiplication: $$10^x\times10^y=10^{\left(x+y\right)}$$

Division: $$10^x\div10^y=10^{\left(x-y\right)}$$

Raising to a Power: $$\left(10^x\right)^y=10^{xy}$$

Inverse: 10^-x=1/10^x

Unity: 10⁰=1

It is based on two axes: x-axis & y-axis.

The point where the two axes meet.

Which of the ff. is not a Radiologic Units?

The unit of radiation exposure or intensity. It is defined as a unit of radiation quantity (1928).

The unit of radiation absorbed dose. The quantity of radiation received by the patient.

It is used for any type of ionizing radiation & exposed matter; not just air.

Applies only to x-rays & gamma rays and their interaction with air.

The unit of occupational radiation exposure.

It is used to expressed the quantity of radiation received by radiation workers and population.

A unit of radioactivity. The unit of quantity of radioactive material.