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1. Electric current may be expressed
in which one of the following
units?
w) coulombs/volt
x) joules/coulomb
y) coulombs/second
z) ohms/second
ANSWER: Y -- COULOMBS/SECOND
2. In the SI system of measure, what
is the unit of capacitance?
1)ohm
2)Henry
3)Farad
4)Hertz
ANSWER: FARAD
3. A Newton is equal to which of the
following?
w) kilogram-meter per second
x) meter per second squared
y) kilogram-meter per second squared
z) kilogram per meter-second
ANSWER: Y -- KILOGRAM-METER PER
SECOND SQUARED
3. For an object moving in uniform
circular motion, the direction of the instantaneous acceleration vector is:
w) tangent to the path of motion
x) equal to zero
y) directed radially outward
z) directed radially inward
ANSWER: Z -- DIRECTED RADIALLY INWARD
w) the cross product of force and
displacement.
x) the product of force times time
y) force divided by time
z) the dot product of force and
displacement
ANSWER: Z -- THE DOT PRODUCT OF
FORCE AND DISPLACEMENT
5. Multiple Choice: The work done by a friction
force is:
w) always positive
x) always negative
y) always zero
z) either positive or negative
depending upon the situation.
ANSWER: X -- ALWAYS NEGATIVE
6.
If water is warmed from 0 degrees Celsius to 6 degrees Celsius, which of the
following things happen. Will the water:
w) expand steadily
x) contract steadily
y) expand at first and then contract
z) contract first then expand
ANSWER: Z -- CONTRACT FIRST THEN
EXPAND
w) bodies of air
x) white bodies with rough surfaces
y) mirrors
z) black bodies with rough surfaces
ANSWER: Z -- BLACK BODIES WITH ROUGH
SURFACES
8. Magnetic lines of force have all
but one of the following characteristics. The one that they DO NOT have is:
w) they go from the South-pole to
the North-pole of a magnet outside of the magnet
x) they are most concentrated at the
poles of a magnet
y) they pass through copper
z) they never cross one another
ANSWER: W -- THEY GO FROM THE
SOUTH-POLE TO THE NORTH-POLE OF THE M AGNET
9. Which one of the following is the
way in which a galvanometer is converted into a voltmeter? Is it by connecting:
w) a high resistance coil in
parallel with its moveable coil
x) a low resistance coil in parallel
with its moveable coil
y) a high resistance coil in series
with its moveable coil
z) a low resistance coil in series
with its moveable coil
ANSWER: Y -- A HIGH RESISTANCE COIL
IN SERIES WITH ITS MOVEABLE COIL
10. The coating on the plastic tape
you use in your cassette players is
w) diamagnetic
x) paramagnetic
y) ferromagnetic
z) a permanent magnet
ANSWER: Y – FERROMAGNETIC
11. Which color light has the
highest frequency?
w) green
x) violet
y) red
z) yellow
ANSWER: X – VIOLET
12. Your Konica Minolta camera has a 50 millimeter
lens. The 50 millimeters is the lens'
w) diameter
x) focal length
y) magnification
z) aperture
ANSWER: X -- FOCAL LENGTH
13. You want to put up a mirror at a
blind corner in a building. Which of the following will give you the largest
field of view? Is it a:
w) convex mirror
x) concave mirror
y) cylindrical mirror
z) plane mirror
ANSWER: W -- CONVEX MIRROR
14. Neutrinos are a subset of which
of the following categories?
w) photons
x) leptons
y) mesons
z) baryons
ANSWER: X – LEPTONS
15. Two atoms of the same element
will have the same number of protons. If they have a different number of
neutrons, what are they called?
ANSWER: ISOTOPES
16. Consider a car driving around a
circular bend in the road. Which of the following CANNOT be constant?
w) velocity of car
x) speed of car
y) nonrelativistic mass of car
z) angular momentum of the car about
the center of the circle
ANSWER: W -- VELOCITY OF CAR
17. These two chemical elements,
named after two world-renowned scientists, were first formed in a thermonuclear
explosion which occurred in the South Pacific in 1952. The atomic numbers of
these elements are 99 and 100. Their chemical symbols are Es and Fm. Name these
elements.
ANSWER: EINSTEINIUM AND FERMIUM
w) have eight electrons in the outer
shell
x) have low stability
y) form many compounds
z) have filled outer electron shells
ANSWER: Z -- HAVE FILLED OUTER
ELECTRON SHELLS
18. The photoelectric effect is a
demonstration of:
w) the wave nature of light
x) the particle nature of light
y) Compton scattering
z) the continuous spectrum of
radiation
ANSWER: X -- THE PARTICLE NATURE OF
LIGHT
19. Laser radiation is:
w) monochromatic
x) directed in a narrow beam
y) produced with large power
densities
z) all of the above
ANSWER: Z -- ALL OF THE ABOVE
20. Which of the following is NOT
one of the fundamental quantities in
physics?
w) time
x) length
y) weight
z) mass
ANSWER: Y – WEIGHT
21. On a weather map, the lines that depict equal
pressure are called what?
ANSWER: ISOBARS
22. The first reflecting telescope
was built by:
w) Galileo
x) Copernicus
y) Tycho Brahe
z) Isaac Newton
ANSWER: Z -- ISAAC NEWTON
23. Ten Coulombs of charge flowing
through a wire per second is equal to:
w) 100 Amperes
x) 10 Ampere
y) 1 Amperes
z) 0.1 Amperes
ANSWER: X -- 10 AMPERES
24. According to the theory of
relativity, people who travel at relativistic
velocities and then return home will
be:
w) shorter than if they had not made
the trip.
x) taller than if they had not made
the trip.
y) younger than if they had not made
the trip.
z) older than if they had not made
the trip.
ANSWER: Y -- YOUNGER THAN IF THEY
HAD NOT MADE THE TRIP.
25. Which of the following units of
energy is the smallest:
w) calorie
x) Joule
y) erg
z) electron-volt
ANSWER: Z -- ELECTRON-VOLT
26. The index of refraction of a
plastic material is 1.5. The speed of
light in this material relative to
that in a vacuum is:
w) 2
x) 1.5
y) 2/3
z) 1/2
ANSWER: Y -- 2/3
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27.The absorption of ink by
blotting paper involves
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28.Nuclear sizes are expressed in
a unit named
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29. Light year is a unit of
A. time B. distance
C. light
D. intensity of light
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30. On a rainy day, small oil
films on water show brilliant colours. This is due to
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