Unit 2 Review Flashcards
Provide the definition of the term:
standard
an exact quantity that people agree to use to compare measurements
Fill in the blanks:
All ____ standards are universally accepted and understood by ____________ throughout the world.
SI, scientists
Fill in the chart:
After being provided the definition, name the term:
A ratio that is equal to one and is used to change one unit to another.
conversion factor
Provide the definition of the term:
mass
a measurement of the quantity of matter in an object
Provide the definition of the term:
volume
the amount of space occupied by an object
How do you find the volume of a solid rectangle?
Measure its length, width, and height and multiply the three numbers
Provide the definition of the term:
density
the mass per unit volume of a material
D = M/V
How many SI base units are there?
7
After being provided the definition, name the term:
a unit obtained by combining different SI units
derived unit
The following units are examples of what?
- Density: g/cm3
- Velocity: m/s
- Acceleration: m/s2
- Momentum: kg*m/s
- Weight: kg*m/s2 (also known as the Newton or N)
- Energy: N*m (also known as the Joule or J)
- Power: J/s or N*m/s (also known as the Watt or W)
Derived units
Most derived units look different from regular SI units, so you should be able to tell them apart
Complete the statement with the best available option:
For most scientific work, temperature is measured on the… scale.
A. Kelvin
B. Farenheight
C. Celsius
D. Ketanji Brown Jackson
C. Celsius
- What is the freezing point of water in Celcius?
- What is the boiling point?
- 0°C
- 100°C
What is the SI unit of temperature?
Kelvin (K)
What is the coldest possible temperature?
Hint: Use Kelvin scale
0 K
0 K is also known as absolute zero
True or false? If false, correct the statement:
Absolute zero is equal to -173°C.
False. Absolute zero is equal to -273°C.
Provide the definition of the term:
graph
a visual display of information or data
Complete the statement with the best available option:
Time is usually the … variable
A. dependent (Y-axis)
B. independent (X-axis)
C. constant
D. None of the above
B. independent (X-axis)
Fill in the blank:
________ make it easier to understand complex patterns by displaying data in a visual matter.
Graphs
Most scientific graphs are made as what?
Line graphs
Answer the question with the best available option:
The lines on scientific graphs are usually drawn in what two ways?
A. bouncy, pointy
B. wiggly, scientifically
C. boldy, italicized
D. straight, curved
D. straight, curved
True or false? If false, correct the statement:
The x-axis is the horizontal line, and the y-axis is the vertical line.
True
Horizontal: ———
Vertical: |
The X-axis information should be on which side of the data table?
Left
How do you find the scale of a graph?
divide the range of the data by the number of squares available and round to the nearest common number
