# 164 psd2 ☼ 18 July 2013 ☢ Name:

1. The first graph shows data gathered by a student in SC 130 physical science.

__________ Calculate the slope of the line for the first graph.
2. ______________ Write out the units of measure for the slope of the line for the first graph.
3. ______________ Calculate the y-intercept of the line for the first graph.
4. ____________________________ Write out the equation of the line with the slope and y-intercept for the first graph.
5. Plot the data provided on the graph below and draw a line through the points.

6. ________________ Calculate the slope of the line.
7. A student measures a rectangular bar of soap with a length of 6 cm, a width of 3.8 cm, and a height of 1.5 cm. The soap has a mass of 48 grams.
1. __________ _____ What is the volume of the soap?
2. __________ _____ What is the density of the soap?
3. _______________ Will the soap float or sink?
4. _______________ Is the soap SafeGuard or Ivory?
8. The graph shows the time versus distance data gathered for four different ball speeds in laboratory 02.
1. __________ _____ Determine the velocity ѵ of ball A.
2. __________ _____ Determine the velocity ѵ of ball B.
3. __________ _____ Determine the velocity ѵ of ball C.
4. __________ _____ Determine the velocity ѵ of ball D.
5. __________ _____ How far will ball A roll in five seconds?
6. __________ _____ How many seconds for ball C to roll 60 meters?
9. __________ _________ Calculate the acceleration of a RipStik that accelerates from 0 m/s to 2.1 m/s in 6 seconds.
10. ___________ __________ A 30 kg young girl accelerates from 0 m/s to 2.1 m/s in 6 seconds. How much force was generated in that acceleration?
11. Use the data in table two to answer the following questions on pulleys.
Table two
2050
80200
140350
180450
1. ____________ Based on the table two data, what is the actual mechanical advantage for the pulley system?
2. ____________ The pulley system in table two had three load lines. What is the ideal mechanical advantage?
3. ____________ Use the preceding two questions to calculate the efficiency of the pulley system.
12. What is Newton's first law?
13. What is Newton's third law?
14. Fill the following temperatures in Celsius:
1. _________°C The temperature of a mix of melting ice and water.
2. _________°C The temperature of melting solid coconut oil.
3. _________°C The typical daily room temperature in Pohnpei.
4. _________°C The temperature of the healthy living human body.
5. _________°C The temperature of a boiling water.
15. ______________ When walking straight West, which number would change on the GPS unit, the N 06° 54.540' or the E 158° 09.650' number?
16. _________ _____ The classroom is at E 158° 09.651'. Binky was at E 158° 09.519'. Use a value of 1874 meters per minute to calculate the distance from the classroom to Binky.
17. __________ __________ Plot the data in table two on the graph. Calculate the slope of the line.
18. For the next few questions the instructor should have brought a thermometer and tables of values. He will write some values on the board. Use those values for the questions below.
1. _______°C What is the dry bulb temperature?
2. _______°C What is the wet bulb temperature?
3. _______°C What is the wet bulb depression?
4. _______% Use a table to determine the relative humidity.
5. _______°C Use a table to determine the heat index (the perceived temperature).
6. ______________ What is the risk level for exercise: low, moderate, or high?
19. A RipStik was swizzled ("wiggled") across a christmas wrapping paper. The sinusoidal swizzle wave can be seen in the diagram below.

5.5 wavelengths were laid down over a distance of 330 centimeters in a time of 2.0 seconds. The distance across (perpendicular to the motion of) the wave was 13 centimeters.
1. λ = _________ _________ Calculate the wavelength λ.
2. a = _________ _________ Calculate the amplitude a.
3. τ = _________ _________ Calculate the period τ.
4. f = _________ _________ Calculate the frequency f.
5. ѵwave = _________ _________ Calculate the wave velocity ѵwave.
20. τ = ________ _________ While gathering data for laboratory nine, a clapper clapping in synch with the echo claps 15 times in ten seconds. Based on this data, what is the period for the echo (the out-and-back time for one echo)?
21. velocity ѵ = _________ _________ During ten seconds a clapper claps 15 times. The echo flight distance is measured as being 224 meters. Based on this data, what is the speed of sound?
22. Given that the spectral lines are generated by electrons moving between orbital shells, why might Neon have more spectral lines than hydrogen?
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.
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. ____________________ What is the full name for Zn?
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?
23. _______________ What is the common name for compound with the formula CH4?
24. _______________ In general, what color do acids tend to turn floral pigment fluids?
25. _______________ In general, what color do bases tend to turn floral pigment fluids?
26. _______________ Are lime fruits acid, base, or neutral?
27. _______________ Is baking soda an acid, base, or neutral?
28. ________________ and ________________. What are the two elements that the Sun's atmosphere is primarily composed of?
29. 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 linear data?
2. _______________ Which shape plots non-linear data?
3. _______________ Which shape plots random data?
4. __________ For the data that plots linearily, make a mathematical estimate of the slope.
30. __________________ _________________ Micahel Faraday proposed the unification what two forces?
31. Albert Einstein developed an equation that relates mass and energy. What was that equation?

$\text{slope m}=\frac{\left(\mathrm{y2}-\mathrm{y1}\right)}{\left(\mathrm{x2}-\mathrm{x1}\right)}$
$percent error= (experimental value−expected value) (expected value)$
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
$t= ( 2d g )$
$g= 2d t2$
Gravitational Potential Energy = mgh
Kinetic Energy = ½mѵ²
momentum = mѵ
Force F = mass m × acceleration a
Hooke's Law for springs: Force F = −kx
$efficiency= actual mechanical advantage ideal mechanical advantage$
$meters per minute= meters measured difference in minutes$
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

Relative humidity from dry bulb and wet bulb depression
Web bulb depression in °C: Dry bulb minus the wet bulb
Dry bulb T in °C 0.5 1.0 2.0 2.5 3.0 3.5 4.0 5.0
2195%90%83%79%77%72% 67% 60%
2496%91%84%80%78%74% 69% 62%
2796%91%85%81%78%75% 71% 65%
28 96% 93% 85% 82% 78% 75% 72% 65%
29 96% 93% 88% 84% 80% 76% 73% 66%
30 96% 93% 88% 84% 81% 76% 73% 67%
3296%93%89%85%81%78% 74% 68%
3596%93%89%85%82%79% 75% 69%
3896%93%89%86%83%80% 76% 71%

Heat index

Dry bulb temperature in °C
Relative humidity 212427282930313235
60% 21242829.5 32 33 35 38 46
70%21252930.7 34 35 37 41 51
80%22263032.1 36 38 40 4558
90%22263133.7 39 41 43 5064
100%22273335.6 42 44 49 54 72

Heat risk for exercise

Effective temperature in °C:Risk level
Less than 32 °CLow risk: Safe to exercise with proper hydration
32 °C to 41 °CModerate risk: Heat cramps or heat exhaustion likely
Above 41 °CHigh risk: Heat stroke likely.

# 164 psd2 ☼ 18 July 2013 ☢ Name:

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