Student can identify base SI units, apply metric prefixes, and convert temperature scales.
Introduce the 7 base SI units.
Scientists around the globe need a standardized way to communicate measurements. In 1960, the scientific community established the International System of Units (abbreviated as SI from the French Le Système International d'Unités).
This system ensures that 1 meter in India is exactly the same as 1 meter in France.
Compare water's boiling and freezing points across different units
A comparison of the freezing and boiling points of water across Kelvin, Celsius, and Fahrenheit scales.
Derived units for volume and density.
When conducting experiments, chemists frequently measure how much space a substance occupies (volume) and how tightly packed its particles are (density).
Formulas to convert between Celsius, Fahrenheit, and Kelvin.
Practice applying the temperature formulas.
To convert a temperature from Celsius to Fahrenheit, we use the formula: .
Let's apply this to the normal human body temperature, which is , by substituting the value into the equation to get .
Performing the multiplication gives , and adding the constant yields a final Fahrenheit temperature of .
Next, to convert a temperature from Celsius to Kelvin, the formula is: .
We can use this to find the Kelvin value for a standard room temperature of . Substituting the value into the formula gives us .
Adding these values together, the room temperature in the Kelvin scale is .
Test understanding of density and unit equivalence.
A metal cylinder has a mass of on Earth. What happens to its mass and weight if it is transported to the Moon, where gravity is significantly lower?