164 • Name:

1. The first graph shows data gathered by a student in SC 130 physical science.
   
   1. __________ Calculate the slope of the line.
   2. ______________ Write the units for the slope of the line.
   3. ______________ Determine the y-intercept of the line.
   4. ____________________________ Write the slope-intercept equation for the line.
2. The second graph shows velocity data gathered by a student in physcial science.
   1. Plot the time versus distance data provided on the graph below and draw a line through the points.
      
   2. ________________ Calculate the slope of the line.
   3. ________________ Determine the y-intercept of the line.
3. __________ What is the slope of the line y = 5.5 + 0.85x?
4. __________ What is the y-intercept of the line y = 5.5 + 0.85x?
5. Graph three is time versus distance for a RipStik castor board going up a gentle hill and then back down the hill. Graph four is time versus distance for moving RipStik castor boards.
   
   • On Monday I rode a RipStik up a gentle slope, turned around, and came back down the slope. the time versus distance data for this is shown in graph three.
     1. ___________________ What is the name of the shape formed by the curve on graph three?
     2. ___________________ Between zero and seven seconds, what is happening to my velocity on graph three?
     3. ___________________ At exactly seven seconds, what is my velocity according to graph three?
     4. ___________________ Between seven and fourteen seconds, what is happening to my velocity on graph three?
     5. ___________________Toughie: During the fourteen second run is the direction of the acceleration changing?
   • For the RipStik data graph four:
     6. _____ Which letter labels the RipStik moving faster at a constant rate of acceleration.
     7. _____ Which letter labels the RipStik moving with a non-constant deceleration .
     8. _____ Which letter labels the RipStik moving at a constant speed with, no acceleration.
     9. _______ ___________ Determine the speed of RipStik run C.
     10. _______ ___________ Determine the speed of RipStik run B from 0 to 1 second.
     11. _______ ___________ Determine the speed of RipStik run B from 2 to 5 seconds.
     12. _______ ___________ Given that for run A distance = ½*acceleration*time² and the coordinate (3 s, 900 cm) shown on the graph, calculate the value of the acceleration. Short form of equation: d=½at²
6. _____________ Which of Newton's laws says that once moving, an RipStik continues to move at a constant velocity without any further swizzling (wiggling)?
7. _____________ Which of Newton's law governs the accelerating motion of a swizzled (wiggled) RipStik?
8. Use the data in table two to answer the following questions on pulleys.

   Table one
   force (gmf)	load (gmf)
   20	50
   80	200
   140	350
   180	450

   1. ____________ Based on the table one data, what is the actual mechanical advantage for the pulley system?
   2. ____________ The pulley system in table one had three load lines. What is the ideal mechanical advantage?
   3. ____________ Use the preceding two questions to calculate the efficiency of the pulley system.
9. Temperatures in Celsius
   • _________°C What is the temperature of a mix of melting ice and water?
   • _________°C What is the temperature of melting solid coconut oil?
   • _________°C What is the typical daily room temperature in Pohnpei?
   • _________°C What is the temperature of the healthy living human body?
   • _________°C What is the temperature of a boiling water?
10. ______________ When walking straight East, which number would change on the GPS unit, the N 06° 54.566' or the E 158° 09.597' number?
11. _________ _____ The classroom is at E 158° 09.651'. Dana was at E 158° 09.314'. Use a value of 1820 meters per minute to calculate the distance from the classroom to Dana.
12. A RipStik was swizzled ("wiggled") across 160 centimeters of poster paper in a time of two seconds. The sinusoidal swizzle wave can be seen in the diagram below.
    
    1. λ = _________ _________ Calculate the wavelength λ of one wave.
    2. a = _________ _________ Calculate the amplitude a.
    3. τ = _________ _________ Calculate the period τ.
    4. f = _________ _________ Calculate the RipStik swizzle wave frequency f.
    5. ѵ_wave = _________ _________ Use the wavelength λ and frequency f to calculate the velocity ѵ_wave of the RipStik swizzle wave.
    6. ѵ_board = _________ _________ Use the 160 centimeters traveled and the two seconds to travel that distance to calculate the velocity ѵ_board of the RipStik board.
    7. _________ Is ѵ_wave equal to ѵ_board?
    8. _________ How many wavelengths in all are there on the "paper" above?
13. List the three primary colors of light (additive colors):
14. List the three secondary colors of light (additive colors):
15. What is hue?
16. What is saturation?
17. What is luminosity?
18. Absorbed light is converted to ______________
19. Red objects absorb all colors except _______________
20. Red objects reflect what color of light?_______________
21. _________ If a penny is 40 centimeters underwater and has an apparent depth of 30 centimeters, what is the index of refraction for water?
22. 
    1. __________ _____ For a Brother XR-7700 sewing machine, calculate the power used based on the information in the images.
    2. __________ _____ For a Brother XR-7700 sewing machine, calculate the resistance.
23. 1. __________ What is the atomic number of Zn?
    2. __________ What is the atomic mass of Zn?
    3. __________ How many protons does Zn have?
    4. __________ How many neutrons does Zn have?
    5. __________ How many electrons does Zn have?
    6. ____________________ Zn was an element tested in the electrical conductivity, what is the full name for Zn?
24. 1. _______________ Looking only at the atomic diagram, determine the atomic number of the atom depicted.
    2. _______________ Looking at the diagram, what is the atomic mass for the atom?
    3. _______________ Looking at the diagram and the chart on the wall, what is the one or two letter chemical abbreviation for this element?
    4. _______________ Looking at the diagram and the chart on the wall, what is the full name for this element?
25. _______________ In general, what color do acids tend to turn floral pigment fluids?
26. _______________ In general, what color do bases tend to turn floral pigment fluids?
27. _______________ Are lime fruits acid, base, or neutral?
28. _______________ Is baking soda an acid, base, or neutral?
29. _______________ Is water an acid, base, or neutral?
30. List the eight planets in order from the sun outwards.
    
    
31. The graph plots three data sets for three different possible mathematical models for the frisbee data. One data set is plotted as squares, one as circles, and a third as triangles.
    
    1. __________ Which shape plots data modeled by a linear mathematical trend line model?
    2. __________ Which shape plots data modeled by a non-linear mathematical trend line model?
    3. __________ Which shape plots data that is randomly distributed and cannot be modeled by a trend line model?
    4. __________ For the data that plots linearily, make a mathematical estimate of the slope.
    5. __________ For the data that plots linearily, make a mathematical estimate of the y-intercept.

$\text{slope m}=\frac{(\mathrm{y2}-\mathrm{y1})}{(\mathrm{x2}-\mathrm{x1})}$
$\text{percent error}=\frac{(\text{experimental value}-\text{expected value})}{\left(\text{expected value}\right)}$
Volume V = length l × width w × height h
mass m = density ρ × Volume V
$\rho =\frac{m}{V}$
distance d = velocity ѵ × time t
$ѵ=\frac{\Delta d}{\Delta t}$
ѵ = at
$a=\frac{\Delta ѵ}{\Delta t}$

d = ½at²
d = ½gt²
$t=\sqrt{\left(\frac{2d}{g}\right)}$
$g=\frac{2d}{t^2}$
Gravitational Potential Energy = mgh
Kinetic Energy = ½mѵ²
momentum = mѵ
Force F = mass m × acceleration a
Hooke's Law for springs: Force F = −kx
$\text{efficiency}=\frac{\text{actual mechanical advantage}}{\text{ideal mechanical advantage}}$
$\text{meters per minute}=\frac{\text{meters measured}}{\text{difference in minutes}}$
period τ = 1 ÷ (frequency f )
velocity ѵ = wavelength λ * frequency f
Voltage V = current i * Resistance R
Power P = current i * Voltage V
atomic number = number of protons
atomic number = number of electrons in neutral atom
atomic mass = nucleons
nucleons = proton + neutrons

where:
a is acceleration
d is distance
Δ is "the change in" (greek lowercase delta)

g is the acceleration of gravity where g is:
g = 980 cm/s² (cgs)
g = 9.8 m/s² (mks)

m is mass
p is momentum
t is time
ѵ is velocity