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# Download A 4.00-cm tall light bulb is placed a distance of 8.30 cm from a

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```Circuits to Optics
June 16, 2004
Circular Motion
2
A ball attached to
a string is moved at
constant speed in a
horizontal circular
path. A target is located near the path
of the ball as shown in the diagram. At
which point along the ball’s path
should the string be released, if the
ball is to hit the target?
A) A
B) B
C) C
D) D
3
An artificial satellite makes 4
Earth in 8 hours. The period of
revolution of the satellite is
A) ½ hour
B) 2 hours
C) 8 hours
D) 32 hours
4
Centripetal
Acceleration
&
Force
5
The diagram below shows the elliptical
orbit of a comet around the Sun.
The magnitude of the centripetal
acceleration of the comet is greatest at
point
A) A B) B
C) C D) D
6
A car moves with a
constant speed in a
clockwise direction
around a circular
represented in the diagram above.
When the car is in the position shown,
its acceleration is directed toward the
A) north B) west C) south D) east
7
Thermodynamics
8
What is the boiling point of water at
standard pressure on the Kelvin scale?
A. 100 K
B. 212 K
C. 273 K
D. 373 K
9
A thermometer is dipped into alcohol
and the alcohol is allowed to
evaporate from the thermometer. As
the alcohol evaporates, the
thermometer
A. decreases
B. increases
C. remains the same
10
Which type of field is present near a moving
electric charge?
(A) an electric field, only
(B) a magnetic field, only
(C) both an electric field and a magnetic field
(D) neither an electric field nor a magnetic
field
The electric circuit consists of a 12-volt
battery, a 3.0-ohm resistor, R1, and a variable
resistor, R2. At what value must the variable
resistor be set to produce a current of 1.0
ampere through R1?
(A) 6.0 Ω
(B) 3.0 Ω
(C) 9.0 Ω
(D) 12 Ω
A physics student notices that 4.0
waves arrive at the beach every 20
seconds. The frequency of these
waves is
(A) 0.20 Hz
(B) 16 Hz
(C) 5.0 Hz
(D) 80 Hz
An electric guitar is generating a
sound of constant frequency. An
increase in which sound wave
characteristic would result in an
increase in loudness?
(A) speed
(B) period
(C) wavelength
(D) amplitude
Which diagram best represents magnetic field
lines around a bar magnet?
A laser beam is
directed at the
surface of a
smooth, calm
pond. Which
organisms could
be illuminated by the laser light?
(A) the bird and the fish
(B) the crab and the seaweed
(C) the bird and the seaweed
(D) the crab and the fish
A photon of which electromagnetic
(A) ultraviolet
(B) x ray
(C) infrared
(D) microwave
What is the reading on ammeter A?
(A) 1.3 A
(C) 3.0 A
(B) 1.5 A
(D) 0.75 A
Two pulses are traveling toward each other in a
uniform medium. Which diagram best represents
the medium when the pulses meet at point X?
(A)
(B)
(C)
(D)
A mass, M, is hung from
a spring and reaches
equilibrium at position B.
The mass is then raised to
position A and released.
The mass oscillates between
positions A and C.
At which position, A, B, or C,
is mass M located when the
kinetic energy of the system
is at a maximum?
A mass, M, is hung from
a spring and reaches
equilibrium at position B.
The mass is then raised to
position A and released.
The mass oscillates between
positions A and C.
At which position, A, B, or C,
is mass M located when the
gravitational potential energy
of the system is at a maximum?
A mass, M, is hung from
a spring and reaches
equilibrium at position B.
The mass is then raised to
position A and released.
The mass oscillates between
positions A and C.
At which position, A, B, or C,
is mass M located when the
elastic potential energy of the
system is at a maximum?
A 4.00-cm tall light bulb is placed a
distance of 45.7 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image distance.
1/f = 1/do + 1/di
1/(15.2 cm) = 1/(45.7 cm) + 1/di
0.0658 cm-1 = 0.0219 cm-1 + 1/di
0.0439 cm-1 = 1/di
22.8 cm = di
23
A 4.00-cm tall light bulb is placed a
distance of 45.7 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image size. (22.8 cm = di)
hi/ho = - di/do
hi /(4.00 cm) = - (22.8 cm)/(45.7 cm)
hi = - (4.00 cm) • (22.8 cm)/(45.7 cm)
hi = -1.99 cm
24
A 4.00-cm tall light bulb is placed a
distance of 8.30 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image distance.
1/f = 1/do + 1/di
1/(15.2 cm) = 1/(8.30 cm) + 1/di
0.0658 cm-1 = 0.120 cm-1 + 1/di
-0.0547 cm-1 = 1/di
-18.3 cm = di
25
A 4.00-cm tall light bulb is placed a
distance of 8.30 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image size.
(di = -18.3 cm)
hi/ho = - di/do
hi /(4.00 cm) = - (-18.3 cm)/(8.30 cm)
hi = - (4.00 cm) • (-18.3 cm)/(8.30 cm)
hi = 8.81 cm
26
A 4.00-cm tall light bulb is placed a
distance of 8.30 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image distance.
1/f = 1/do + 1/di
1/(15.2 cm) = 1/(8.30 cm) + 1/di
0.0658 cm-1 = 0.120 cm-1 + 1/di
-0.0547 cm-1 = 1/di
-18.3 cm= di
27
A 4.00-cm tall light bulb is placed a
distance of 8.30 cm from a double convex
lens having a focal length of 15.2 cm.
Determine the image size.
(-18.3 cm= di)
hi/ho = - di/do
hi /(4.00 cm) = - (-18.3 cm)/(8.30 cm)
hi = - (4.00 cm) • (-18.3 cm)/(8.30 cm)
hi = 8.81 cm
28
```
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