# 164 Physical science • Name:

1. _______ _______ The soap density graph shows data gathered by a student in SC 130 physical science for the density of soap. Calculate the density ρ of the soap
2. ______________ Will the soap float or sink?
3. _______ _______ A student measures a bar of soap with a length of 5 cm, a width of 3 cm, and a height of 2 cm. The soap has a mass of 36 grams. What is the density of the soap?
4. _______ _______ A bar of soap is found to have a density of 1.6 g/cm³. If the volume of the soap is 100 cm³, what is the mass of the soap?
5. The next four questions are matching. The Rolling marbles graph depicts the time versus distance data for four different marbles. One marble was not moving, one marble was slowing down, one marble was speeding up, and one was moving at a constant speed. Use the letters E, F, G, and H at the end of the lines on the xy scattergraph to match the correct line to the marble behavior.
6. _____ Marble not moving: stationary.
7. _____ Marble slowing down.
8. _____ Marble moving at a constant non-zero speed.
9. _____ Marble speeding up.
10. _______ _______ Calculate the velocity of marble F
11. _______ _______ Calculate the velocity of marble H
12. _______ _______ Calculate the velocity of marble E between one and two seconds.
13. _______ _______ Calculate the velocity of marble G between 3.5 and 5.0 seconds.
14. _______ _______ Calculate the velocity of a marble that rolls 280 centimeters in 4 seconds.
15. _______ _______ Calculate the distance a marble with a velocity of 50 cm/s will roll in 8 seconds.
16. Fill in the blank cells in the following table based on the RipStik time and distance data provided below.
pillar time (s) distance (m) velocity (m/s) acceleration (m/s²)
zero 0.0 0.0 0.0 0.0
one 10 5
two 15 10
17. _____ If two marbles are rolled into a line of five marbles, how many marbles will roll out from the end of the line?
18. What does Newton's first law say that object will tend to do?
19. If a moving object is losing momentum as time passes, then what does Newton's second law tells us is acting on the object?
20. _______ _______ 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.
21. Extension x (cm) Force (gmf)
00
315
630
945
_______ Data was gathered for the extension of an elastic band using a cup and marbles to generate the force. The data in the table is from the experiment. Is the elastic band a linear elastic material?
22. _______ _______ For the Hooke's law data, determine Hooke's constant for the elastic band using Hooke's law .
23. _______ _______ If a force of 50 gmf is applied to the above elastic band, calculate the extension x.
24. _____ °C. What is the temperature at which water freezes/ice melts?
25. _________ °C. What is the temperature at which solidified coconut oil melts?
26. _________ °C. What is the typical room temperature in Pohnpei?
27. _________ °C. What is the temperature of the living human body?
28. _________ °C. What is the temperature of a boiling water?
29. __________________ Which material below conducts the most heat energy?
30. _ΔT = ____________________ °C Based on the chart above, what is the change in temperature ΔT for the metal which conducted the most heat energy?
31. ______________ When walking due West, which number would change on the GPS unit, the N 06° 54.560' or the E 158° 09.352' number?
32. _______ _______ A student walked north on a line of longitude starting at N 6° 54.467' and ending at N 6° 54.567'. The student measured a distance of 192 meters. Determine the number of meters per minute of latitude based on this data.
33. A RipStik was ridden across a wet cloth towel soaked in water with food color. The RipStik was then swizzled across a large sheet of presentation paper. The swizzle wave can be seen in the diagram.

λ = _________ _________ Determine the wavelength λ of one wave of the RipStik swizzle wave.
34. a = _________ _________ Determine the amplitude a of the RipStik swizzle wave.
35. τ = _________ _________ The RipStik took a duration of 1.36 seconds to travel the 68 centimeters seen on the diagram above. Calculate the period τ for the RipStik swizzle wave.
36. f = _________ _________ Calculate the RipStik swizzle wave frequency f.
37. ѵwave = _________ _________ Use the wavelength λ and frequency f to calculate the velocity ѵwave of the RipStik swizzle wave.
38. _________ _________ During ten seconds a clapper claps 25 times. The echo flight distance is measured as being 140 meters. Based on this data, what is the speed of sound?
39. __________ Is the spectrum shown discrete | or | continuous?
40. ___________________ Based on laboratory ten, what element produces the above spectrum?
41. __________ Is the spectrum shown discrete | or | continuous?
42. ___________________ Based on laboratory ten, what produces the above spectrum?
43. Using the information in the table below, fill in the blank cells.
ApplianceImagePower (w)Voltage (V)Current (A)Resistance (Ω)
Bone saw 750220
44. In the space below sketch a Lithium atom, atomic number three on the wall chart.
45. _______________ Looking only at the diagram above, determine the atomic number of the atom depicted:
46. _______________ Looking at the diagram above, what is the atomic mass for the atom?
47. _______________ Looking at the diagram above and the chart on the wall, what is the one or two letter chemical abbreviation for this element?
48. _______________ [Toughie!] Looking at the diagram above and the chart on the wall, what is the full name for this element?
49. _______________ In general, what color do acids tend to turn floral pigment fluids?
50. _______________ In general, what color do bases tend to turn floral pigment fluids?
51. ____________________ Of the four forces, electromagnetic, weak force, strong force, and gravitational force, which force is unusually weak compared to the other forces?
52. The theory of the "very large" is called: ____________________ ________________.
53. The theory of the "very small" is called: ____________________ ________________.
54. _____ Is the site swap notation equation 334233 a sequence that can be juggled?
55. _____ Is the site swap notation equation 252525 a sequence that can be juggled?
56. Only about five percent of the universe consists of the matter and energy that you and I see, feel, and experience. The other 95% of the universe consists of:
57. Write a paragraph on whether you believe that nature is mathematical mathematical. Is nature mathematical? Support your answer with specific evidence.

$\text{slope m}=\frac{\left(\mathrm{y2}-\mathrm{y1}\right)}{\left(\mathrm{x2}-\mathrm{x1}\right)}$
$\rho =\frac{m}{V}$
mass m = (density ρ)*(Volume)
$ѵ=\frac{\Delta d}{\Delta t}$
distance d = (velocity ѵ)*(t)
$a=\frac{\Delta ѵ}{\Delta t}$
velocity ѵ = (acceleration a)*(t)
distance d = ½acceleration a)*(time t
distance d = ½acceleration of gravity g)*(time t
momentum p = (mass m)*(velocity ѵ)
gravitational potential energy = (mass m)*(acceleration of gravity g)*(height)
Kinetic energy = ½(mass m)*(velocity ѵ
$F=\frac{\Delta p}{\Delta t}$
Force F = (mass m)*(acceleration a)
Force F = k * x where the extension x opposes the force F
period τ = 1 ÷ (frequency f)
velocity ѵ = (wavelength λ)*(frequency f)
Voltage V = current i * Resistance R
Power P = current i * Voltage V