Download IPS - Physics Final Practice Exam 2010

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IPS - Physics Final Practice Exam 2010
1) A force
a. is a push or a pull
b. gives energy to an object
c. can cause an object to change its motion
d. can do all of the above
2) How much speed does a freely falling object
gain during each second of fall?
a. 5 m/s
b. 10 m/s
c. 20 m/s
d. 25 m/s
3) Gravitational force between two objects depends
on the
a. masses of the objects and the distance
between them
b. mass of each object only
c. distance between the objects only
d. inertia and masses of the objects
4) According to the inverse-square law, the sound
of a cricket will change if the cricket moves
closer to you. If the cricket is three times as
close how much louder will the sound be?
a. 2 times louder
b. 3 times louder
c. 6 times louder
d. 9 times louder
5) Work divided by time equals
a. force
b. distance
c. power
d. mass
6) For work to be done, the direction of
a. motion must be perpendicular to the
direction of the applied force
b. the applied force must be opposite to the
direction of the motion
c. the applied force must be perpendicular to
the direction of the motion
d. the applied force must be the same as the
direction of the motion
7) A unit of power is a
a. Newton
b. Newton-meter
c. meter
d. watt
8) A unit of work is a
a. Newton
b. Newton-meter
c. meter
d. watt
9) One joule of work is the same as one
a. Newton
b. Newton-meter
c. meter
d. watt
10) Energy is defined as
a. power
b. the ability to produce heat
c. a change in motion
d. the ability to do work or cause change
11) Potential energy is energy that is
a. in motion
b. stored
c. not capable of doing work
d. not capable of causing change
12) Kinetic energy is energy that is
a. in motion
b. stored
c. not capable of doing work
d. not capable of causing change
13) The kinetic energy of an object increases as the
object
a. slows down
b. loses mass
c. stops moving
d. speeds up
14) Energy is measured in
a. Newton’s
b. meters
c. watts
d. joules
15) Energy associated with motion is called
a. mechanical energy
b. chemical energy
c. electromagnetic energy
d. heat energy
16) A diver on a platform has a PE of 6000 J. How
much KE will the diver have when he is half way
down to the water?
a. 6000 J
b. 3000 J
c. 0 J
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17) A diver on a platform has a PE of 6000 J. How
much PE will the diver have when he reaches
the end of his dive?
a. 6000 J
b. 3000 J
c. 0 J
26) The electromagnetic waves with the longest
wavelength are:
a. microwaves
b. gamma waves
c. radio waves
d. visible light waves
18) A transverse wave is a wave in which the
a. motion of the medium and direction of the
wave are the same
b. motion of the medium and direction of the
wave are at right angles to each other
c. medium is in its liquid phase
d. medium is in its solid phase
27) The electromagnetic waves with the highest
energy are:
a. microwaves
b. gamma waves
c. radio waves
d. visible light waves
19) The crowding together of air molecules is called
a
a. trough
b. compression
c. crest
d. rarefaction
20) Lambda () is the symbol for
a. wavelength
b. frequency
c. amplitude
d. cycles
21) The highest point of a wave is called a
a. trough
b. crest
c. compression
d. rarefaction
22) Light waves
a. require a medium
b. cannot travel through solids
c. are caused by a vibrating object
d. are electromagnetic waves
23) A wave with a frequency of 0.5 Hz and a speed
of 10 m/s has a wavelength of
a. 50 m
b. 0.5 m
c. 20 m
d. 0.2 m
24) Calculate the frequency of a 15 m wave
traveling at 200 m/s.
a. 13.3 m
b. 13.3 Hz
c. 3000 m
d. 3000 Hz.
25) Light shining through a bottle of water is often
bent. This change in direction is called:
a. reflection
b. refraction
c. diffusion
d. interference
28) There is a repulsive force between two charged
objects when
a. charges are of unlike sign
b. they have the same number of protons
c. charges are of like sign
d. they have the same number of electrons
29) Potential difference (pressure difference) is
measured in
a. amperes
b. volts
c. coulombs
d. joules
30) There is a potential difference of 12 V across a
resistor with 0.25 A of current in it. The
resistance of the resistor is
a. 48 ohms
b. 25 ohms
c. 12 ohms
d. 0.021 ohms
31) Appliances connected so that they form a single
pathway for charges to flow are connected in
a(n)
a. series circuit
b. parallel circuit
c. open circuit
d. closed circuit
32) By Coulomb’s Law, if the charge on one of the
particles is doubled, the force is
a. unchanged.
b. halved.
c. doubled
33) When the resistance of a circuit is doubled and
no other changes occur the current in the circuit
is
a. half
b. doubled
c. quadrupled
34) The units that measure energy are the same as
the units that measure work.
a. True
b. False
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35) Sound waves do not have crests.
a. True
b. False
36) When a wave moves through water, the
particles of water move along with the wave.
a. True
b. False
37) We hear thunder before we see lightning.
a. True
b. False
38) As a fire truck approaches a person the
frequency of the waves is greater in front of the
truck than in back of the truck.
a. True
b. False
39) Materials that conduct electricity are insulators.
a. True
b. False
40) An object becomes electrically polarized
(charged) when its charges are aligned so that
one side has a slight excess of positive charges
and the other side has a slight excess of
negative charge.
a. True
b. False
41) Convert 325 miles to km
1 mi = 1.609 km
a. 512 km
b. 225.9 km
c. 522.9 km
d. 500 km
42) Convert 210 kg to Newton’s.
1 kg = 9.8 N
a. 2058 N
b. 1258 N
c. 205.8 N
d. 310 N
43) Convert 28 miles to meters.
1 mi = 1.609 km
a. 4500 m
b. 45073 m
c. 428 m
d. 5280 m
44) Convert 76 pounds to grams.
2.2 lbs = 1 kg
a. 0.16 g
b. 987 g
c. 34473.6 g
d. 44337 g
45) Convert 15 Newton’s to pounds.
2.2 lbs = 9.8 N
a. 1.53 lbs
b. 3.37 lbs
c. 33.7 lbs
d. 337 lbs
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