Quantities and Units
Quantities that are considered the most basic; all other quantities are expressed in terms of these quantities.
What are fundamental quantities?
The amount of significant figures in 5600.0
What is 5 significant figures?
The law that energy can neither be created nor destroyed, only transformed into different forms.
What is the conservation of energy law?
The factor that affects the thermal energy (or temperature) of a substance.
What is the kinetic energy of the molecules in a substance?
The units used to measure electrical current and voltage in circuits.
What are amperes (A) and volts (V)?
Three examples of fundamental quantities.
Two rules for significant figures.
What is:
- Zeros that appear after a nonzero digit but before a decimal point are not significant
- Zeros that appear between nonzero digits are always significant
- Zeros that appear before a nonzero digit in a decimal number are not significant
- Zeros that appear to the right of a decimal point are significant as long as they are preceded by a nonzero digit
(any two of the above)
What is kinetic energy?
The difference between gases and "condensed" states of matter (liquids and solids).
What is the space between the molecules?
The type of electrical circuit in which light bulbs are set up in consecutive order (one after the other).
What is a series circuit?
Quantities that are expressed in terms of fundamental quantities.
The amount of significant figures in 0.0000678
What is 7 significant figures?
Three examples of energy forms.
What are kinetic energy, gravitational potential energy, elastic potential energy, thermal energy, etc.? (any three of the above)
The amount of heat required to change the state of matter at a constant temperature.
What is specific latent heat?
The type of electrical circuit in which light bulbs are set up in branches all connected directly to the power source.
What is a parallel circuit?
Three examples of fundamental units.
What are meters, kilograms, seconds, amperes, kelvin, moles, and candela? (Any three of the above)
A notation written as a number between, but not including 0 and 10, multiplied by ten to the power of a specific number depending on the number being written.
What is scientific notation?
Three forms of energy present when a marble is rolled down a ramp.
What are kinetic energy, gravitational potential energy, and sound energy?
The law that states that the pressure of the gas and the volume of the gas are inversely related.
What is Boyle's Law?
The type of circuit in which the electrical current is the same throughout the entire circuit.
What is a series circuit?
Two examples of fundamental quantities that could be measured from a car.
What are the temperature of the engine (K), the diameter of the wheel (m), the electrical current of the radio (A), the time it takes for the car to accelerate to 60km/h (s), etc.
0.00678 written in scientific notation.
What is 6.78 x 10-3 ?
The energy transformation that occurs when a solar cell absorbs sunlight.
What is light energy to electrical energy?
The amount of heat required to change a substance from a solid to a liquid (or a liquid to a solid) at a constant temperature.
What is the specific latent heat of fusion?
The type of circuit in which the sum of the reciprocals of the electrical currents in each branch are equal to the reciprocal of the total electrical current of the circuit.
What is a parallel circuit?