3.
The effective
resistance of the circuit to the left is:
a) 28.0 W
b) 9.12 W
c) 22.0 W
d) 1.12 W
1. A virtual image for a spherical mirror is:
a)
Upside down and on the same side of the mirror as the object
b)
Right side up and on the same side of the mirror as the object
c)
Upside down and on the opposite side of the mirror as the object
d)
Right side up and on the opposite side of the mirror as the object
2. A ray of light in air strikes an unknown medium at an angle of
35 degrees from the
normal. The ray is then refracted at an angle of 19 degrees. What
is the index of
refraction of this unknown medium?
a)
1.76
b)
0.56
c)
0.19
d)
0.25
3.
The effective
resistance of the circuit to the left is:
a)
28.0 W
b)
9.12 W
c)
22.0 W
d)
1.12 W
4. The current of the circuit above is:
a)
3.27 Amps
b)
64.3 Amps
c) 7.89 Amps
d)
2.57 Amps
5. The voltage drop across the 5 Ohm resistor is:
a) 39.45 V
b) 321.5 V
c) 16.35 V
d) 12.85 V
6. The voltage drop across the 10 Ohm resistor is:
a) 39.45 V
b) 32.5 V
c)
78.9 V
d)
72 V
7. Momentum is defined as:
a)
the product of force times velocity
b) the product of force times displacement
c) the product of force times time
8. A cheetah has 3000 J of kinetic energy.
Calculate it's mass if
he is moving at 15 m/s.
a)
6.7 kg
b)
400 kg
c)
26.7 kg
9. Which of the following has the units seconds/cycle
a)
Frequency
b)
Period
c)
Velocity
d)
Amplitude
10. A spherical mirror has a diameter of 50 cm. Calculate
how
far the object was placed in front of the mirror if an image appeared
at
32 cm away.
a)
114.3 cm
b)
19.5 cm
c)
20.5 cm
d)
18 cm
11. Calculate the magnifcation of the image in #10
a)
0.64 x
b) -0.64x
c)
1.56x
d)
-1.56x
12. A 75 kg man is running at a velocity of 3
m/s. He catches up to
a 10 kg sled which is
moving at 2 m/s. What is their combined velocity after he jumps
in?
a)
1.5 m/s
b)
2.88 m/s
c)
3.3 m/s
d)
0.5 m/s
13. A small stationary research rocket blows apart
into 2 pieces.
A 1.5 kg piece flies off horizontally at 12.5 m/s.
Calculate the velocity of a 3.3 kg piece, which blew off in the
opposite direction.
a)
-29.2
m/s
b)
29.2 m/s
c)
-5.68 m/s
d) -0.396
m/s
14. A diverging lens:
a)
Takes light rays and bends them to a point
b)
Takes light rays and sends them outward and not to a point
c)
Takes light rays and sends them parallel to the principal axis
15. A crane lifts a 50 kg crate 25 meters high at a
constant velocity
over a period of 6
seconds. Calculate the work done by the crane.
a)
208.3 J
b)
2042 J
c)
12,250 J
d) 600 J
16. Calculate the power output of the engine in #
15?
a)
12,250 W
b)
2042 W
c)
208.3 W
d)
600 W
17. This is when you charge an object by bringing another charged
object near it?
a)
Attraction
b)
Repulsion
c)
Grounding
d)
Induction
18.A real image produced by a lens is
a)
Upside down and on the same side of the lens as the object
b)
Right side up and on the same side of the lens as the object
c)
Upside down and on the opposite side of the lens as the object
d)
Right side up and on the opposite side of the lens as the object
19. Calculate the period of a wave that has a wavelength of 1.5 m
and is moving at a
speed of 344 m/s.
a)
229 Hz
b)
229 s/c
c)
0.0045 Hz
d)
0.0045 s/c
20. A 100 kg cannonball has a velocity of 56.5 m/s
as it exits the
barrel of the cannon.
Calculate the time of impact if the ignited powder provides 14,000
N of force.
a)
0.04 s
b)
0.06 s
c)
0.40 s
d) 0.60
s
21. A student has a 426.7 Hz tuning fork. He determines that the
temperature of the
room is 22 degrees Celsius. How long would a closed resonance tube
be if the tuning fork was placed at its opening?
a)
0.81 m
b)
0.20 m
c)
0.40 m
d)
1.23 m
22. A 9000 kg roller coaster starts its descent
after the lift at
a height of 35.6 m with a
speed of 2.0 m/s. How fast is the roller coaster moving at the
bottom
of the hill if it is at
ground level?
a)
13.5 m/s
b)
20.5 m/s
c) 26.4
m/s
23. Light with a wavelength of 5.0 x 105m is
travelling
through water. Calculate the
frequency of the light wave in water. (hint: you will need to use
2 formulas)
a)
451s/c
b)
600 Hz
c)
451 Hz
d)
0.75 Hz
24. According to wave theory, a rarefaction is?
a)
When particles of a wave are NOT close together in a longitudinal wave
b)
When particles of a wave are close together in a longitudinal wave
c)
When particles of a wave are close together in a transverse wave
d)
When particles of a wave are NOT close together in a transverse wave
25. A truck driver pulls a cord at an angle
of 25 degrees to the
right of the vertical with a
force of 30 N to close the back of his truck. How much work does
he do if the door is
pulled down 2.2 m.
a)
27.9 J
b)
12.5 J
c) 59.8 J
26. A converging lens:
a)
Takes light rays and bends them to a point
b) Takes light rays and sends them outward and not to a point
c) Takes light rays and sends them parallel to the principal axis
d)
Takes light rays and sends them perpendicular to the principal axis
27. A diver has 4500 Joules of potential energy. How high
is he jumping
from if his mass
is 86.5 Kg?
a)
52
meters
b)
5.3 m
c) 450
meters
d) 100 m
28. When you send a forced vibration out and it matches an
object's
natural frequency
thus creating sound you have?
a)
Pitch
b)
Beats
c)
Resonance
d)
Equilibrium
29. Calculate the resistance from a 33 volt source that is wired
to a 150 Watt bulb.
a)
0.22 Ohms
b)
4950 Ohms
c)
4.54 Ohms
d)
7.25 Ohms
30. A ball at rest is dropped from an unknown
height. Calculate
this height if the ball is moving 15.6 m/s at a point where it is 13.6
meters above the ground
a)
14.4 m
b) 26.0
m
c) 32.0 m
d) 45.0 m
31. Calculate the power of a light bulb if it is hooked up to a
120
volt source and has
0.55 amps running through it.
a)
218 watts
b) 0.0046 watts
c)
66 volts
d)
66 watts
32. A 78 kg rhino has 3500 J of kinetic energy.
How fast is he moving?
a)
4.8 m/s
b) 90 m/s
c) 9.5
m/s
33. A circuit includes a 20 V battery wired to 4 , 5 W
resistors.
( 2 resistors are in series which is then parallel to the other 2 which
are also in series with each other). The total resistance, current,
voltage
drop, current drop, power are as follows. (The answer will be in that
same
order)
a)
20 W, 1 A, 5 V, 1 A, 20 W
b)
1.25 W, 16A, 20 V, 4 A, 320 W
c) 5 W, 4A, 20 V, 2A, 80 W
34. In a series circuit, the current in a 10 W resistor is 5 A. The current is a 20W resistor is:
a)
Greater than 5A
b)
Less than 5A
c)
Also 5A
35. A 2.5 m giant ziti noodle is in a home with the
windows
open. If the temperature of the home is 21.6 degrees Celsius , at what
frequency does the noodle resonate?
a)
34.40 Hz
b)
68.79 Hz
c)
137.58 Hz
d)
275 Hz
36. The maid of the home mentioned in #35 chops the noodle in
thirds
and stuffs one end with a piece of sausage. Calculate the new frequency
at which one noodle resonates. Assume the temperature stays constant.
a)
414.4 Hz
b)
207.2 Hz
c)
103.2 Hz
37. According to wave theory a compression is:
a)When particles of a wave are NOT close together in a longitudinal wave
b)When
particles of a wave are close together in a longitudinal wave
c)When
particles of a wave are close together in a transverse wave
d)When
particles of a wave are NOT c-lose together in a transverse wave
38. A proton with a charge of 1.66 x 10-19C is 7 cm
from
a -3.0 x 10-19C charge to the
north and 3.5 cm from a -5.0 x 10-19C charge to the east
as shown in the diagram
above. Calculate the magnitude of the coulomb force between the
charges on the Y-
axis.
a)
6.4x19-29 N
b)
9.15x10-26 N
c)
6.4x10-27 N
39. Calculate the magnitude of the coulomb force between the
charges
on the X-axis in
problem #38
a)
2.1x10-28 N
b)
6.1x10-25 N
c)
2.1x10-26 N
40. Calculate the magnitude of the Resultant coulomb force acting
on the proton in
problem #38
a)
2.2x10-28 N
b)
6.2x10-25 N
c)
2.2x10-26 N
41. This type of wave has points which move parallel to the
motion
of the wave?
a) Electromagnetic
b)
Standing
c)
Transverse
d) Longitudinal
42. An electron moves UP the page in a magnetic
field directed to the right. What is the direction of the force which
acts on t
43. This type of current has electrons which move in one
direction.
a)
Parallel
b)
Series
c)
Alternating
d)
Direct
44. A converging lens produces a magnification of -.22x . If the
image produced was 5.5
cm tall and 14.5 cm from the lens. What is the focal point of the
lens?
a) 65.9 cm
b) 0.015 cm
c)
3.19 cm
d)
11.9 cm
45. How tall was the object in problem #44?
a)
25 cm
b)
14.5 cm
c) 65.91 cm
46. In a parallel circuit, the voltage of a 10 W resistor is 5 V. The voltage of a 20W resistor is:
b)
Greater than 5V
c) Less
than 5V
c) Also
5V
47. The angle of incidence equals the angle of reflection is the
:
a)
Law of Refraction
b)
Law of Reflection
c)
Snell's Law
d)
Chaladni's Law
48. The index of refraction for an unknown liquid is 2.2. How
fast
does light travel in
this medium?
a)
3 x 108 m/s
b)
1.4 x 108 m/s
c)
1.4 m/s
d)
3 m/s
49. Which of the following are
based on the idea of CONSERVATION?
a)
Energy
b)
Momentum
c)
Charge
d)
All of the above
a)
The distance from one crest to another
b)
The distance from the equilibrium line to a crest or trough
c)
The # of cycles/second
d)
The # of seconds/cycle