Download Final Exam: Second Semester

Review Notes for Final Exam: Second Semester
CP Physics
Practice Problems
1. The slowest moving planet in our solar system is:
2. Neglecting friction, what constant force in Newtons will give a 100.0 kg mass an acceleration
of 6.2 m/s2?
3. The MOMENTUM of an object is:
4. A car is traveling 10 m/s and starts accelerating at a rate of 4 m/ s2. How much time
is needed for the car to reach a velocity of 44 m/s?
5. How far did the car travel in the above problem (#4)?
6. What man demonstrated and stated Newton’s first law of motion before Newton?
7. Gravitational attraction, electrical attraction, and magnetic attraction between two objects are
__________ proportional to the________________ of their distance between them.
8. The term IMPULSE in physics refers to:
9. Light travels at 3.00 x 108 m/s. How many seconds go by from the moment the starter’s
pistol is shot until the smoke is seen by the track timer 1000m away?
10. The number of vibrations per second is the ________________of a wave.
11. The change in wave direction at the boundary of two different media is __________.
12. The spreading of waves around the edge of a barrier is ________________.
13. The speed of the wave is equal to its ______________ times its wavelength.
14. The name given to the electromagnetic radiation that has a wavelength slightly shorter than
visible light is ____________.
15. The main cause for the oceanic tides is:
16. If the earth were its present volume but twice as massive (double its mass), would we weigh
more?
17. Refraction of light occurs when light travels through two media that have _________ optical
densities.
18. If an object is between a concave mirror and its focal point, the image will be ___________.
19. Magnification is equal to the size of the image divided by the ______of the object.
20. An electric field is equal to ____________.
21. The unit that is used to measure the rate of flow of electric current is a(n) ___________.
22. The current flowing in an electric circuit can be increased by __________ and __________.
23. A current of 0.200 A flows through a resistor when it is connected to a 12.00 V battery.
What is the resistance of the resistor?
24. If five electric devices are connected in a series circuit, then the number of current paths is
equal to ___________.
25. The equivalent (total) resistance of a parallel circuit is always _________ (more/less) than
the resistance of any individual resistor in the circuit.
26. In a series circuit, the voltage across each resistor will ______ (always/never/sometimes)
be the same.
27. In a series circuit, the amperage across each resistor will ______ (always/never/sometimes)
be the same.
28. How does an electroscope work? What does it show?
29. How many amperes of current flow in a wire through which 3.2 x 1018 electrons pass per
second?
30. The force between two objects is 85 N. One object has a positive charge of 1.60 x 10-6 C,
while the other has a negative charge of 5.20 x 10-6 C. How far apart are the two objects?
31. What power is supplied to a motor that operates on a 120-V line and draws 2.08 A of
current?
32. Two resistors of 6.0 Ohms and 2.0 Ohms are connected in series across a 12.0 V battery.
What is the voltage drop across the 3.0 Ohm resistor?
33. When two parallel wires carry currents in opposite directions, their magnetic fields
_______(attract/repel) each other?
34. Two resistors, one 8 Ohm and the other 12 Ohm are connected in parallel. What is the
equivalent resistance of the parallel combination?
35. When an observer on Earth sees a rocketship speed by very fast (close to the speed of light),
he would see time on this rocketship moving _______________(faster/slower/same)
Know these names:
36.
37.
38.
39.
40.
Einstein.
Michelson-Morley
Lorenz
Millikan
Joe Kittinger
Match the following unit with what it is.
41.
42.
43.
44.
Amps
Volts
Ohms
Watts
Study the follow circuit to answer the following questions.
A
12v
A = 2 ohms
B = 3 ohms
C = 2 ohms
B
C
D
45. Which resistor has the highest voltage going thru it?
46. The current thru resistor B is __________ the current thru resistor C.
47. The power thru resistor C is __________.
48. There are _______ path(s) the current can go in this circuit.
49. What would happen to the voltage of the parallel portion of this circuit if one more resistor
was added at D?
50. According to the special theory of relativity, a 10.00 g object that is moving 98% the speed
of light would have a mass of:
51. Evidence supporting the Big Bang theory is:
i. Edward Hubble discovered that many galaxies are moving away from us
because they show a doppler shift of red, implying an expanding universe.
ii. The discovery of the background radiation of the universe to be around 2.7
kelvin.
a. i only
b. ii only
c. both i and ii
52. A neutron is made of three quarks, the combination of which is:
53. Is an electron a quark?
d. none of these