F.J. Brennan Science
Department
General
Science Knowledge Test
Name:__________________
Multiple choice. For each of the following questions,
select he correct response.
1. Displacement:
a. describes magnitude and direction
of change in position
b. includes the total length of the
path travelled _____
c. is a scalar quantity
d. is always the same as the
displacement
e. all of the above
2. Acceleration
is equal to:
a. the slope of a acceleration - time
graph
b. the slope of a speed - time graph _____
c. the slope of an velocity - time
graph
d. the area under the displacement -
time graph
3. A
horizontal line on a velocity - time graph suggests:
a. the object is stopped
b. the object is moving at a constant
velocity _____
c. the object is accelerating
d. the object is moving extremely fast
4 A
node is a point where there is always
(A) a double crest
(B) a double trough
© constructive interference
(D) destructive interference
(E) a double rarefaction
5 The
speed of sound outside is
(A) largest
in winter
(B) largest
in spring
© largest
in summer
(D) largest
in fall
6 The
three primary light colours are
(A) yellow,
cyan and magenta
(B) blue,
green and yellow
© blue,
green and red
(D) red,
white and blue
(E) yellow, white and magenta
7 The
unit of electrical potential difference is the
(A) ampere (D)
ohm
(B) coulomb (E)
volt
© kilowatt hour
8 If
the resistance of an electrical circuit were halved and the voltage applied to
the circuit doubled, the current in the circuit would
(A) be four times as large
(B) be
twice as large
© remain the same
(D) be half as large
(E) be one quarter as large
9 What
is the effect when a second identical resistor is added in series in a circuit
containing one resistor and a dry cell?
(A) The
resistance of the circuit decreases.
(B) The
resistance of the circuit increases.
© The
current through the original resistor stays the same.
(D) The
voltage drop across the original resistor stays the same.
(E) The
voltage drop across the original resistor increases.
10 A step-down
transformer is used to change
(A) high
power to low power
(B) direct current to alternating current
© alternating current to direct current
(D) high voltage to low voltage
(E) low voltage to high voltage
11. Which
one of the following samples of matter is homogeneous?
a. soil b. oil and water
c. vinegar d. muddy water
12. What
is the name of the process which involves the change of a
substance
directly from solid to gas?
a. evaporation b. liquification
c. sublimation d. condensation
13. Which
of the following is an example of a physical change?
a. burning natural gas b. boiling water
c. rotting of food d. electrolysis of water
14. Protons
are positively charged particles discovered by:
a. Chadwick b. Rutherford
c. Goldstein d. Thomson
15. Isotopes
have:
a. the same atomic numbers but
different mass numbers
b. different atomic numbers but the
same mass numbers
c. the same number of neutrons
d. different number of protons but the
same number of electrons
16. One
atom of the isotope 17Cl has:
a. an atomic number of 35 and atomic
mass number of 17
b. 17 protons, 18 neutrons, 17
electrons
c. 35 protons, 17 neutrons, 35
electrons
d. 17 protons, 35 neutrons, 17
electrons
e. 18 protons, 17 neutrons, 18
electrons
17. Which
of the following statements is not a part of Bohr’s model?
a. electrons move only in certain
allowed energy levels
b. model is only able to explain line
spectrum of hydrogen
c. electrons give off energy in the
form of light when they
change
energy levels
d. electrons can be excited to the
ground state by heating
18. Which
of the following is not a property of most metals?
a. brittle b. electrical conductors
c. malleable d. shiny lustre
19. Which
of the following would have the largest atomic radius?
a. Li b. F
c. Fr d. At
20. Which
of the following metals reacts with water the fastest?
a.K b.Al c.Ca d.Pb
21. The
volume of any gas can be increased by decreasing:
a. the amount of substance b. the pressure on it
c. its temperature d. its kinetic energy
22. Consider
the following reaction: 2H2 + O2 --->
2H2O
If
one litre of oxygen combines with 2 L of hydrogen what
volume
of water vapour is produced:
a. 1 L b. 2 L c. 3 L d. 4 L
23 If
a base is added to an acid the pH would:
a. increase b. decrease
c. remain the same d. none of the above
24 Which
of the following is not a property of acids?
a. contain hydronium ions b. turns blue litmus red
c. taste sour d. feel slippery
e. react with most metals to form H2
gas
25 How
much more acidic is a solution with a pH = 3 than a solution
with
a pH = 7:
a. 4 times b. 40 times
c. 10 000 times d. it’s not more acidic
26 An
acid and a base combine to make water and a(n):
a. salt b. precipitate
c. acid solution d. basic solution
27 Which
of the following statements is false:
a. bromothymol blue is yellow in an acidic
solution
b. litmus paper turns blue in basic
solutions
c. phenolphthalein turns pink in
acidic solutions
d. all of the above
28 Ben Johnson, starting from rest, can
accelerate at 3.0 m/s2 for 3.0 s.
How far will he run during these 3.0 s?
a) 4.5 m
b) 1.0 m
c) 13.5 m
d) 6.0 m
e) 9.0 m
29 A Jumbo Jet that can maintain an
airspeed of 400 km/h is headed due east.
A steady wind of 100 km/h is blowing from the north. The jet’s actual velocity relative to the
ground is:
a) 412 m/s [E 14o S]
b) 500 m/s [SE]
c) 450 m/s [S 76o E]
d) 412 m/s [N 76o E]
e) none of the above
30 A girl exerts a 200 N force to lift
a barbell to a vertical height of 2.0 m in 5.0 s. If she had done this in 10 s, the energy required would have
been:
a) four times as great
b) twice as great
c) the same
d) half as great
e) one quarter as great
31 In a Rutherford scattering
experiment, particles are beamed at a piece of thin gold foil. Which one of the following statements best
describes the initial observations?
a) The particles are uniformly
scattered in all directions.
b) Most of the particles are scattered
backwards.
c) Most of the particles pass through
without appreciable deflection.
d) Most of the particles are deflected
through a large angle.
e) Most of the particles are absorbed
by the gold foil.
32 In the Rutherford “gold foil” experiment
most of the bombarding particles pass through the foil undeflected. Which one of the following properties of the
nucleus would best account for this observation?
a) The nucleus has a positive charge.
b) The nucleus contains most of the
mass of the atom.
c) The nucleus is small in size
compared to the rest of the atom.
d) The nucleus has a very small mass.
e) The nucleus contains both neutrons
and protons.
33. The number of cubic metres in a cubic
kilometre is:
a) 3000
b) 1.0 x 10-3
c) 1.0 x 106
d) 1.0 x 103
e) 1.0 x 109
34. The data in the following chart
indicated that the relationship between “C” and “D” is:
|
C |
1 |
2 |
4 |
10 |
|
D |
2 |
˝ |
1/8 |
1/50 |
a) C = 1/(2@D)
b) D = 1/C
c) D = 2/C2
d) none of these
e) D = 1/C2
35 Which
is the third member of the alkene series?
(a) propane (b)propene
© propadiene (d)
butene
36. Which of
the following is not a unit of density ?
a. grams
per cubic centimetre
b. kilograms
per cubic metre
c. kilograms
per centimetre
d. grams
per litre
37. Which of
the following is not a gas giant?
a. Mercury.
b. Neptune.
c. Jupiter.
d. Saturn.
38. This
planet has a giant hurricane that is larger than two earths
a. Mars c. Pluto
b. Jupiter d. Venus
39. Light
pollution is a term used to describe
a. areas
with small amounts of garbage
b. light
that is potentially harmful to you
c. wasted
light that interferes with viewing night time objects
d. lights
that have a negative environmental impact on humans
40. A light
year is
a. how far
light travels in one year
b. the
distance from the sun to the earth
c. about
1000000000 km
d. a fat
free year
41. Which of
the following contains a positive charge?
a. proton
b. neutron
c. electron
d. ion
42 All
elements are arranged in order of atomic number on the
a. Brady
Table
b. Mass
Table
c. Periodic
Table
d. Element
Table
43. Diffusion
is
a. an eight letter word c.
movement of water
b. movement of a gas d.
movement of particles from high to low concentration
44 Is the
following chemical equation balanced ?
6 CO2 + 6H2O 6O2 + C6H12O6
a. YES b. NO
45 Which of
the following is associated with photosynthesis in cells :
a. mitochondria c. chloroplast
b. cell membrane d. cytoplasm
46 Osmosis
is the
a. diffusion
of particles
b. diffusion
of water across a cell membrane
c. movement
of water inside a cell
d. movement
of water outside a cell
47 A
reproductive technology often used to decrease the chances of birth defects in
children of older woman is
a. intrauterine
insemination
b. cytoplasmic
transfer
c. fertility
drugs
d. surrogate
mother
48. You
should accept responsibility for your own safety.
a. True
b. False
49. The woman who
agrees to carry the developing child in her womb even though it is not
genetically hers:
a. intrauterine insemination
b. cytoplasmic
transfer
c. fertility
drugs
d.
surrogate
mother
50. The proper way to smell an unknown chemical is to place it directly
under the nose and breathe deeply:
a. True
b. False