# 174 psf2 ☼ 16 July 2014 ☢ Name:

1. The first graph plots data from a soap density measurement laboratory. The slope of the line is the density of the soap.
1. __________ Calculate the slope of the line.
2. ______________ Calculate the y-intercept of the line.
3. ____________________________ 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. __________ How far will the RipStik travel in 23 seconds?
5. __________ 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 gathered the data seen in the table below.
1. Plot the soap data on the graph.
2. __________ __________ Calculate the density of the soap. Include the units with your answer.
3. Based on the slope, will the soap [float] OR [sink]?
4. Based on the slope, is this likely to be [Ivory] OR [Dial] soap?
6. I accelerated a RipStik gathering the time versus distance data seen below.
1. _______________ _________ Based on the data, what was the acceleration of the RipStik?
2. _______________ _________ Use the equation velocity ѵ = acceleration a × time t to determine my velocity after 7 seconds.
3. _______________ _________ If I continued that same acceleration for 10 seconds, how far would I go in centimeters?
7. Write Newton's first law of motion.
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The table shows pulley data gathered by a student in physical science.
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.
9. A RipStik was accelerated from rest (0 cm/s) to 240 cm/s in five seconds.
1. _______________ _________ Based on the data, what was the acceleration of the RipStik?
2. _______________ _________ If I continued that same acceleration for ten seconds, how far would I go in centimeters?
10. Temperatures in Celsius:
• _________℃ What is the temperature of a mix of melting ice and water?
• _________℃ What is the temperature of the healthy living human body?
• _________℃ What is the temperature of a boiling water?
11. ______________ When walking straight East, which number would change on the GPS unit, the N 06° 54.566' or the E 158° 09.597' number?
12. The classroom is at E 158° 09.651'. Binky was at E 158° 09.337'.
1. _________ _____ What is the difference in minutes between the classroom and Binky?
2. _________ _____ Use the laboratory nine linear regression data to calculate the distance in meters from the classroom to Binky.
13. 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.
6. ѵwave = _________ _________ Use the wavelength λ and frequency f to calculate the velocity ѵwave of the RipStik swizzle wave.
14. A video covered three types of precipitation. List the three types of precipitation.

15. Eiko released the weather balloon with an LMS6 radiosonde attached. List some of the physical properties of the atmosphere that the radiosonde measured.
16. Primary and secondary colors
1. List the primary colors of light:
2. List the secondary colors of light:
17. HSL colors:
• Define Hue:
• Define Saturation:
• Define Luminosity:
18. What is reflection?
19. What is refraction?
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. __________ _____ If cash power is \$0.47 per kWh, how many hours can the Singer run on 1000 watts of power?
6. __________ _____ If cash power is \$0.47 per kWh, calculate the cost to run the sewing machine for eight hours.
1. __________ What is the atomic number of Au?
2. __________ What is the atomic mass of Au?
3. __________ How many protons does Au have?
4. __________ How many neutrons does Au have?
5. __________ How many electrons does Au have?
6. ____________________ Toughie: What is the name of the element Au in English?
20. Note that the number of neutrons equals or exceeds the number of protons.
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. _______________ Because of wide use in integrated circuits in computers and cell phones, a great deal of modern technology depends on this element. What is the full name of this element in English?
21. _______________ Are lime fruits acid, base, or neutral?
22. _______________ Is baking soda an acid, base, or neutral?
23. _______________ Is ammonia an acid, base, or neutral?
24. _______________ Is vinegar an acid, base, or neutral?
25. _______________ Is water an acid, base, or neutral?
26. The sixth planet from the sun is ___ ___ ___ ___ ___ ___, a gas giant composed primarily of hydrogen and helium with traces of methane and ammonia. The planet has a density of less than one gram per cubic centimeter. The planet is best known for its rings made of frozen water ice and silicate rocks.

The sixth planet has a moon called ___ ___ ___ ___ ___. This moon has an atmosphere, wind, and lakes. The wind, however, is nitrogen and methane gases with no oxygen, the lakes are vast pools of hydrocarbons - natural gasThere is no way life can develop on this moon.
27. Use arrows to trace the path for the ball below for the site swap equation shown below
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___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
3   3   3   4   2   3   3   3   3   3
```

$\text{Body mass index}=\frac{\text{mass in kg}}{{\text{height in meters}}^{2}}$
$\text{slope}=\frac{\left({y}_{2}-{y}_{1}\right)}{\left({x}_{2}-{x}_{1}\right)}$
$\text{percent error}=\frac{\left(\text{experimental value}-\text{expected value}\right)}{\left(\text{expected value}\right)}$
Volume V = length l × width w × height h
mass m = density ρ × Volume V
$\rho =\frac{m}{V}$
distance d = velocity ѵ × time t
$\text{velocity}ѵ=\frac{\Delta d}{\Delta t}$
$\text{acceleration}a=\frac{\Delta ѵ}{\Delta t}$
velocity ѵ = acceleration a × time t
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
momentum = mass m × velocity ѵ
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

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