What represents relationships between measurements?
Equations
100
A Velocity vs. Time Graph where velocity is constant
A horizontal line
100
This person developed the three laws of motion
Sir Isaac Newton
200
Indicated by Δy
Vertical displacement
200
(T/F)
Dimensions (units) on each side of an equation must match
True
200
A Displacement vs. Time graph where velocity is constant
A diagonal line with a positive slope
200
The absence of air resistance is called...
Vacuum
300
The difference or change in (Δ)
Delta
300
This is a way to eliminate invalid equations
Dimensional Analysis
300
A Velocity vs. Time graph where acceleration is increasing
A curved line
300
(T/F)
Dimensions can be treated as algebraic quantities
True
400
Σ indicates...
The sum or total of a quantity
400
(T/F)
Dimensional analysis is used in choosing conversion factors
True
400
What is one benefit of line graphs?
Convenient way to summarize data, indicates the relationship between the dependent and independent variable, can make inferences based on graph line
400
This person's hypothesis stated, “all objects fall at the same rate in absence of air resistance”
Galileo Galilei
500
The difference between how variables are abbreviated and how units are abbreviated
Variables are in italics/bold while units are regular/roman letters
500
(T/F)
All dimensionally correct equations are true equations
False.
All true equations are dimensionally correct but not all dimensionally correct equations are true.
500
Given that the average school year in NJ is 180 days and the school day is approximately 7 hours long, how many seconds has an 8th grader spent in school if they also went to Pre-K and Kindergarten?
756,000 seconds
500
How do you find acceleration on a Velocity vs. Time graph?
First, draw the tangents on the curve, then solve for the magnitude
500
The Seven Base Units of the SI System are...
Length (m)
Mass (kg)
Time (s)
Temperature (K)
Amount of Substance (mol)
Electric Current (A)
Luminous Intensity (cd)