psb3 164 ☈ Name:

08 December 2011

1. The graph shows data gathered by a student in SC 130 physical science for the density of soap.
   
   __________ What is the slope of the line without any units?
2. ______________ What is the density ρ of the soap (include units!)?
3. ______________ Will the soap float or sink?
4. Plot the data provided on the graph below and draw a line through the points.
   
5. ________________ Calculate the slope of the line.
6. ________________ Write the units of the slope.
7. The graph shows the time versus distance data gathered for three different RipStik runs A, B, and C. The first three questions are matching. Use the letters at the end of the lines on the xy scattergraph.
   
   _____ RipStik moving at a constant speed, no acceleration.
8. _____ RipStik moving faster at a constant rate of acceleration.
9. _____ RipStik moving with a non-constant acceleration .
10. _______ ___________ Determine the speed of RipStik run C.
11. _______ ___________ Determine the speed of RipStik run B from 0 to 3.5 seconds.
12. _______ ___________ Determine the speed of RipStik run B from 4.5 to 5 seconds.
13. _______ ___________ At the RipStik velocity calculated for RipStik run C, how long in seconds for the RipStik to cover 2100 meters?
14. __________________________ Suppose a single 5.0 gram marble hits a line of five marbles that each have a mass of 2.5 grams. As shown in class, two marbles are kicked out. One of the kicked out marbles moves slightly faster than the other kicked out marble. In this situation, what is being conserved?
15. _________ _________ Given that the force is equal to the change in momentum, calculate the force required to bring a marble with a momentum p of 210 g cm/s to a stop in 0.5 seconds.
16. _________ _________ When all 67 kilograms of me falls off a RipStik, I accelerate towards the ground at 9.78557 m/s² and then I hit the ground, exerting a force of 1500 Newtons on the ground. Calculate the counter-force that the ground exerts on me.
17. _________ _________ On Wednesday the 28th I hid just South of the gymnasium. The Garmin GPS units used by the class indicated that I was located at N 06° 54.560', E 158° 09.352'. The GPS in my camera is not as accurate and indicated that my location was N 06° 54.533', E 158° 09.333'. What is the difference in minutes between N 06° 54.560' and N 06° 54.533'?
18. _________ _________ Based on laboratory seven experimental data average from both sections, there are 2100 meters per minute. Given that there are 2100 meters per minute, what is the distance in meters for the difference in minutes calculated in the question above? In other words, how far apart in meters are the camera coordinates from the Garmin GPS coordinates?
19. A RipStik was swizzled across a poster pad paper. The swizzle wave can be seen in the diagram below.
    
    
    _________ How many wavelengths are there on the "paper" above?
20. λ = _________ _________ Determine the wavelength λ of one wave of the RipStik swizzle wave.
21. a = _________ _________ Determine the amplitude a of the RipStik swizzle wave.
22. τ = _________ _________ The RipStik took a duration of 1.50 seconds to travel the 120 centimeters seen on the diagram above. Calculate the period τ for the RipStik swizzle wave.
23. f = _________ _________ Calculate the RipStik swizzle wave frequency f.
24. ѵ_wave = _________ _________ Use the wavelength λ and frequency f to calculate the velocity ѵ_wave of the RipStik swizzle wave.
25. τ = ________ _________ While gathering data for laboratory nine, a clapper clapping in synch with the echo claps 20 times in ten seconds. Based on this data, what is the period for the echo (the out-and-back time)?
26. velocity ѵ = _________ _________ During ten seconds a clapper claps 20 times. The echo flight distance is measured as being 175 meters. Based on this data, what is the speed of sound?
27. Jeopardy television game show time: The answer is "Red Green Blue." What is the question? Write your question as a complete sentence in question format.
    
28. What is hue?
29. What is saturation?
30. What is luminosity?
31. A glass is filled with water. The top of the glass is covered with a sheet of plastic and the glass is turned-upside down. As seen on Monday, the water stays in the glass. Add labelled force arrows to the diagram to explain why the water stays in the glass.
    
    
32. __________ _____ The main lines along the road are high voltage lines at 13,440 volts. The A and B building require 19,680 Watts of power. What current has to run in the high voltage lines to provide this amount of power?
33. _____________________ When a floral litmus solution changes color, what changes, the hue angle, the saturation, or the luminosity?
34. _____________________ When a floral litmus solution changes color, what changes, the hue angle, the saturation, or the luminosity?
35. List the eight planets from the sun outwards:
36. Talk about going local, some of the potassium-40 in ____________________ decays into anti-matter.
37. _____ Is the site swap equation 3 true? That is can the sequence be juggled?
38. _____ Is the site swap equation 51 true? That is, can the sequence be juggled?
39. As seen in the image, three identical vials have equal amounts of a green liquid. Why are two floating and one has sunk to the bottom?
    

$\text{slope m}=\frac{(\mathrm{y2}-\mathrm{y1})}{(\mathrm{x2}-\mathrm{x1})}$
mass m = (density ρ)×(Vol V )
Vol = length×width×height
$ѵ=\frac{\Delta d}{\Delta t}$
d = ѵt
$a=\frac{\Delta ѵ}{\Delta t}$
ѵ = at
d = ½at²
d = ½gt²
p = mѵ
GPE = mgh
KE = ½mѵ²
$F=\frac{\Delta p}{\Delta t}$
F = ma
F = −kx distance d = velocity ѵ * time t
period τ = 1 ÷ (frequency f )
velocity ѵ = wavelength λ * frequency f