164 • Name:

1. The first graph shows data gathered by a student in SC 130 physical science.
   1. __________ Calculate the slope.
   2. ______________ Write the units for the slope.
   3. ______________ Determine the y-intercept.
   4. ____________________________ Write the y = mx + b slope-intercept equation.
2. A student gathered the data seen in the table below.
   1. Plot the data.
      
   2. __________ __________ Calculate the slope of the line.
   3. __________ __________ Calculate the intercept of the line.
   4. __________ __________ Calculate the distance in meters for 0.080 minutes.
   5. __________ __________ Calculate the distance in minutes for 1260 meters.
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. A student measures a 45 gram bar of soap with a length of 9.0 cm, a width of 3.0 cm, and a height of 2.0 cm.
   1. __________ _____ What is the volume of the soap?
   2. __________ _____ What is the density of the soap?
   3. ______________ Will the soap float or sink?
6. A superball falls for 700 centimeters from the height of the new windows in the FSM-China Friendship Sports Center.
   1. __________ _____ How long does the superball fall in seconds?
   2. __________ _____ What is the speed of the superball?
7. The graph shows RipStik deceleration data. A RipStik was ridden 900 centimeters up a gentle slope, then the RipStik was ridden back down the same slope. The time from the start at the bottom of the slope to the return to the bottom of the slope was 12 seconds.
   1. __________ _____ Determine the velocity at exactly 6 seconds.
   2. __________ _____ Calculate the velocity between 8 and 10 seconds.
   3. __________ _____ Calculate the velocity between 10 and 12 seconds.
   4. __________ _____ Calculate the acceleration between 10 and 12 seconds.
8. A student rolled a single marble three times into a line of five marbles. The first roll was a slow roll, the second was a fast roll, and the third roll was faster.
   
   The student gathered the following data:
   Slow marble in: distance = 24 cm, time = 1.2 seconds.
   Slow marble out: distance = 24 cm, time = 1.6 seconds.
   Fast marble in: distance = 24 cm, time = 0.75 seconds.
   Fast marble out: distance = 24 cm, time = 1.0 seconds.
   Faster marble in: distance = 24 cm, time = 0.6 seconds.
   Faster marble out: distance = 24 cm, time = 0.8 seconds.
   
   1. Use the data above to calculate the velocity in and the velocity out. Record the velocities in the table below.
      
   2. _________ __________ Calculate the slope of the line.
   3. _________ What was the percentage loss in velocity?
   4. __________________ __ ______________ What physical law was the above experiment intended to demonstrate?
9. A child on a RipStik starts from a speed of zero at a vertical height of 0.30 meters above the bottom of a slope. The mass of the child and the RipStik is 30 kg. The acceleration of gravity g is 9.79 m/s².
   1. _________ __________ Calculate the Gravitational Potential Energy of the child and RipStik at the top of the slope.
   2. _________ __________ Use the relationship Kinetic Energy = Gravitational Potential Energy to calculate the speed of the child and the RipStik at the bottom of the slope.
   3. _________ __________ Use the velocity to calculate the momentum of the child and RipStik at the bottom of the slope.
10. Use the data to answer the following questions on pulleys.

    force (gmf)	load (gmf)
    20	66
    80	264
    140	462
    180	594

    1. ____________ What is the actual mechanical advantage?
    2. ____________ The pulley system had four load lines. What is the ideal mechanical advantage?
    3. ____________ Calculate the efficiency.
11. Temperatures in Celsius:
    • _________℃ What is the temperature of a mix of melting ice and water?
    • _________℃ What is the typical daily indoor room temperature in Pohnpei?
    • _________℃ What is the temperature of the healthy living human body?
    • _________℃ What is the temperature of a boiling water?
12. Spring term 2014 I hid at N 06° 54.559', E 158° 09.355'. The lines of latitude and longitude are shown in the picture. One line is labeled A and the other line is labeled B. North is at the top of this image.
    1. _____ Which letter in the image corresponds to a line of latitude?
    2. _____ Which letter in the image corresponds to a line of longitude?
    3. _____ Which letter in the image corresponds to the line that is N 06° 54.559'?
    4. _____ Which letter in the image corresponds to the line that is E 158° 09.355'?
13. A RipStik was swizzled ("wiggled") across a poster paper. The sinusoidal swizzle wave can be seen in the diagram below along with the measurements.
    
    1. _________ How many wavelengths are shown?
    2. λ = _________ _________ Calculate the wavelength λ of one wave in centimeters.
    3. a = _________ _________ Calculate the amplitude a.
    4. τ = _________ _________ Calculate the period τ.
    5. f = _________ _________ Calculate the RipStik swizzle wave frequency f.
14. Colors of light:
    1. What are the three primary colors of light?
    2. Define HSL Hue:
    3. Define HSL Saturation:
    4. Define HSL Luminosity:
15. __________ _________ If a small doll is placed 60 cm in front of a mirror, about how far behind the mirror will the doll appear to be?
16. __________ _________ If a small doll 60 cm below the surface of the water, about how deep will the doll appear to be (what will be the doll's apparent depth)? Note that the index of refraction for water is 1.333.
17. For a Singer Heavy Duty 4423 sewing machine with information as provided in the image:
    1. __________ _____ What voltage does the machine use?
    2. __________ _____ How much current does the machine use?
    3. __________ _____ Calculate the electrical power used by the machine.
    4. __________ _____ Calculate the electrical resistance.
    5. __________ _____ If cash power costs $0.60 per kiloWatt hour, what is the cost to run the machine for eight hours?
18. 1. __________ What is the atomic number of Cu?
    2. __________ What is the atomic mass of Cu?
    3. __________ How many protons does Cu have?
    4. __________ How many neutrons does Cu have?
    5. __________ How many electrons does Cu have?
    6. ____________________ Cu was an element tested in the electrical conductivity, what is the full name for Cu?
19. Key to the nucleons in the diagram on the right: Protons: ○. Neutrons: ●.
    1. _______________ Looking only at the diagram of the atom, 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?
20. _______________ In general, what color do acids tend to turn floral pigment fluids?
21. _______________ In general, what color do bases tend to turn floral pigment fluids?
22. _______________ Are lime fruits acid, base, or neutral?
23. _______________ Is baking soda an acid, base, or neutral?
24. _______________ Is water an acid, base, or neutral?
25. Planets and a journey to the edge of the universe questions
    1. On a journey from Earth to the Sun, we first encounter the goddess of love, the planet ____________.
    2. This goddess, however, is an angry goddess, the sister planet from hell, due to a runaway ____________ ____________ effect.
    3. Continuing our journey to the Sun we meet the burnt and frozen innermost planet, ____________.
    4. Beyond Jupiter is the planet known as the ringed planet, ____________.
    5. Beyond Uranus is the last planet, ____________.
    6. On our way to the edge of the universe we eventually leave our galaxy, called the ____________ ____________.
    7. Two billion light years from the Earth and two billion years back in time we see galaxies that are brighter than a thousand galaxies today, these are called ____________.
26. According to a theory developed by Professor Peter Higgs, the _________ _________ is the particle that would explain the different masses of all the subatomic particles.
27. In the deep and dark Soudan mine experiment, scientists sought to detect Weakly Interacting Massive Particles (WIMPs) which are theorized to be what _________ __________ is made of.
28. Mathematical models
    1. _____ Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a RipStik moving at a constant linear velocity with no acceleration (as in the homework 021 in the second week).
    2. _____ Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a ball falling under the constant acceleration of gravity g (as in laboratory three).
    3. _____ Identify by the letter which of the mathematical relationships on the graph represents the height versus velocity relationship for a marble rolling from a height h down a banana leaf and onto a flat table (homework 041).
    4. _____ Identify by the letter which of the mathematical relationships on the graph represents the length versus mass for a cantilever (as last Friday in class, homework 054).

$\text{slope}=\frac{(y_2-y_1)}{(x_2-x_1)}$
$ѵ=\frac{\Delta d}{\Delta t}$
distance d = velocity ѵ × time t
$a=\frac{\Delta ѵ}{\Delta t}=\frac{(v_2-v_1)}{(t_2-t_1)}$
ѵ = at
ѵ = gt
d = ½at²
d = ½gt²
where g is the acceleration of gravity, g = 979 cm/s²

Gravitational Potential Energy GPE = mgh
Kinetic Energy KE = ½mѵ²
$\mathrm{KE}=\frac{m{ѵ}^2}{2}$
momentum = mass m × velocity ѵ
Force F = mass m × acceleration a

Actual Mechanical Advantage = Load lifted ÷ Force used to lift
$\text{efficiency}=\frac{\text{Actual Mechanical Advantage}}{\text{Ideal Mechanical Advantage}}$
period τ = 1 ÷ (frequency f )
velocity ѵ = wavelength λ * frequency f
$\text{percent error}=\frac{(\text{experimental value}-\text{expected value})}{\left(\text{expected value}\right)}$
Voltage V = current i * resistance R
Power P = iV