# 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 y = mx + b slope-intercept equation for the line.
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. __________ __________ Based on the slope and intercept, how far will the RipStik travel in 23 seconds?
5. __________ __________ Based on the slope and intercept, how long in seconds for the RipStik to travel 7500 centimeters?
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 bar of soap with a length of 7.9 cm, a width of 3.9 cm, and a height of 1.7 cm. The soap has a mass of 58.9 grams. What is the density of the soap?
6. For the chart shown, determine the following:
1. __________ _____ What is the density ρ of the soap?
2. ______________ Will the soap float or sink?
3. ______________ Based on the density and your experience in the laboratory, what brand of soap is this?
7. For the following RipStik velocity chart:

1. __________ _____ Determine the velocity ѵ of the RipStik.
2. __________ _____ If the RipStik continued at that velocity for 20 seconds, how many centimeters would the RipStik travel?
3. __________ _____ If the RipStik continued at that velocity for 8600 centimeters, how many seconds would the RipStik travel?
8. The five graphs seen below plot time versus distance for a rolling ball. Time in seconds is on the x-axis. Distance in centimeters is on the y-axis.
1. Explain what is happening with the speed of ball A.
2. Explain what is happening with the speed of ball B.
3. Explain what is happening with the speed of ball C.
4. Explain what is happening with the speed of ball D.
5. Explain what is happening with the speed of ball E.
9. 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. __________ _____ Calculate the velocity between 0 and 2 seconds.
2. __________ _____ Calculate the velocity between 2 and 4 seconds.
3. __________ _____ Determine the velocity at exactly 6 seconds.
4. __________ _____ Calculate the change in velocity between two and four seconds.
5. __________ _____ Calculate the acceleration between two and four seconds.
10. A student rolled marbles into a line of five marbles.
1. _________ If one marble collides with a line of five marbles on a ruler track, how many marbles are ejected (go out)?
2. _________ If two marbles collide with a line of five marbles on a ruler track, how many marbles are ejected (go out)?
3. Why do you think the marbles know what to do? Explain in your own words but do not use "magic" words that you cannot define. Write your answer using complete sentences.
11. Write out Newton's first law of motion in words.
12. Write Newton's second law.
13. Write Newton's third law.
14. The data are measurements made for a five load line pulley.
2090
80360
140630
180810
1. ____________ Based on the data, what is the Actual Mechanical Advantage for the pulley system?
3. ____________ Use the preceding two questions to calculate the efficiency of the pulley system.
15. Temperatures in Celsius:
• _________℃ What is the temperature of a mix of melting ice and water?
• _________℃ What is the temperature of melting solidified coconut oil?
• _________℃ 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?
16. 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'?
17. Describe the process of collision-coalescence precipitation.
18. Describe the process of orographic precipitation.
19. A RipStik was swizzled ("wiggled") across a poster paper. The sinusoidal swizzle wave can be seen in the diagram.
1. _________ How many waves are there on the "paper" above?
2. λ = _________ _________ What is the wavelength λ of one wave?
3. a = _________ _________ What is the amplitude a?
4. τ = _________ _________ What is the period τ of one wave?
5. f = _________ _________ Calculate the RipStik swizzle wave frequency f.
20. Primary and secondary colors
• List the primary colors of light
• List the secondary colors of light
21. HSL colors:
• Define Hue:
• Define Saturation:
• Define Luminosity:
1. __________ _____ How much current does a Singer 3116 sewing machine use?
2. __________ _____ What is the voltage for a Singer 3116 sewing machine?
3. __________ _____ How much power does a Singer 3116 consume?
4. __________ _____ How much resistance does a Singer 3116 sewing machine generate?
5. __________ _____ For a Singer 3116 sewing machine, if cash power is \$0.50 per kWh, calculate the cost to run the sewing machine for eight hours.
1. __________ What is the atomic number of Cl?
2. __________ What is the atomic mass of Cl?
3. __________ How many protons does Cl have?
4. __________ How many neutrons does Cl have?
5. __________ How many electrons does Cl have?
6. __________ How many electrons does Cl have in the outermost (third) shell?
7. __________ How many electrons does Cl "want" in the outermost (third) shell?
8. ____________________ What is the full name, spelled correctly, for Cl?
22. _______________ In general, what color do acids tend to turn floral pigment fluids?
23. _______________ In general, what color do bases tend to turn floral pigment fluids?
24. _______________ Are lime fruits acid, base, or neutral?
25. _______________ Is baking soda an acid, base, or neutral?
26. _______________ Is ammonia an acid, base, or neutral?
27. 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, ____________.
28. According to a theory developed by Professor Peter Higgs, the _________ _________ is the particle that would explain the different masses of all the subatomic particles.
29. 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.
30. 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).

$\text{slope}=\frac{\left({y}_{2}-{y}_{1}\right)}{\left({x}_{2}-{x}_{1}\right)}$
Volume V = length l × width w × height h
mass m = density ρ × Volume V
$\rho =\frac{m}{V}$

$ѵ=\frac{\Delta d}{\Delta t}$
distance d = velocity ѵ × time t

$a=\frac{\Delta ѵ}{\Delta t}=\frac{\left({v}_{2}-{v}_{1}\right)}{\left({t}_{2}-{t}_{1}\right)}$
ѵ = at
ѵ = gt
d = ½at²
d = ½gt²
where g is the acceleration of gravity
g = 979 cm/s²

Gravitational Potential Energy GPE = mgh
acceleration of gravity g = 979 cm/s²
Kinetic Energy KE = ½mѵ²
$\mathrm{KE}=\frac{m{ѵ}^{2}}{2}$
momentum = mass m × velocity ѵ

$\text{Force}=\frac{\Delta \text{momentum}}{\Delta \text{time}}$
$\text{Force}=\text{mass}×\frac{\Delta ѵ}{\Delta t}$
Force F = mass m × acceleration a
$\text{efficiency}=\frac{\text{Actual Mechanical Advantage}}{\text{Ideal Mechanical Advantage}}$

period τ = 1 ÷ (frequency f )
velocity ѵ = wavelength λ * frequency f
$\text{percent error}=\frac{\left(\text{experimental value}-\text{expected value}\right)}{\left(\text{expected value}\right)}$

Voltage V = current i * resistance R
Power P = iV