Download Science 9 Practice Test Life Sciences: 1. What is held within the

Science 9 Practice Test
Life Sciences:
1. What is held within the nucleus of a cell?
a. DNA
b. the nucleolus
c. chromosomes
d. genes
e. all of the above
2. A gene is a short section of DNA used to code for:
a. nucleotides
b. amino acids
c. genomes
d. proteins
e. nitrogenous bases
3. A stem cell is a cell that:
a. are mostly found in plants
b. is highly branched in structure
c. may divide to give rise to several different cell types
d. undergoes meiosis
e. reproduces by binary fission
4. Which of the following is a stage in the normal human cell cycle?
a. meiosis
b. cytokinesis
c. budding
d. fertilization
e. all of the above
5. Cancer is:
a. not contagious
b. a disease caused by mutations in the genetic code of certain cells
c. characterized by uncontrolled cell division
d. caused by carcinogens
e. all of the above
6. If a normal chimpanzee cell has 48 chromosomes, how many chromosomes would be present in
chimpanzee daughter cells following meiosis?
a. 48
b. 24
c. 12
d. 6
e. there's no way to tell
7. An example of gametes is:
a. ovaries
b. testes
c. cochlea
d. sperm
e. none of the above
8. Which of the following is not a form of asexual reproduction?
a. vegetative reproduction
b. spore formation
c. budding
d. binary fission
e. pollination
9. What is the name of the region within the nucleus whose function is to make ribosomes?
10. Why do we want to avoid mutagens causing mutations in DNA?
11. Starting with Interphase, but the following stages of the human cell cycle in order:
Prophase, Interphase, Anaphase, Cytokinesis, Telophase, Metaphase
Interphase, __________, ___________, ___________, __________, ___________
12. Give two advantages of asexual reproduction in terms of survival of the species:
13. Match the reproduction style with the organism:
1.Spore formation
2.External fertilization
3.Vegetative reproduction
4.Binary Fission
5.Budding
6.Fragmentation
7.Internal fertilization
A. Sea star
B. Hydra
C. Salmon
D. Humans
E. Single-celled organisms
F. Fungi
G. Strawberries
Physical Science: Atoms, Elements and Compounds:
1. What would you expect to find at the centre of an atom?
a. protons
b. neutrons
c. positive charge
d. nucleus
e. all of the above
2. Calcium is a(n):
a. noble gas
b. halogen
c. alkali metal
d. alkaline earth metal
e. transition metal
3. An example of a metalloid is:
a. Iron
b. Steel
c. Fluorine
d. Lithium
e. Silicon
4. The following is a Bohr model of:
a. Magnesium
b. Vanadium
c. Sodium
d. Chlorine
e. Fluorine
5. CO is an example of a(n):
a. element
b. atom
c. noble gas
d. compound
e. both b and c
6. What is the chemical formula for Iron (III) Oxide?
a. Fe3O
b. Fe2O
c. FeO3
d. FeO
e. Fe2O3
7. Name the following compound: HgO
a. Mercury Oxygen
b. Mercury Oxide
c. Mercuride Oxygen
d. Mercury (II) Oxide
e. Mercury (II) Oxygen (II)
8. Which of the following are chemical changes?
I. Baking bread
II. Kool-Aid crystals dissolving in water
III. Burning gasoline in your car
IV. Dry ice changing states
V. Water freezing to form ice
a. I, II, III and IV
b. I, II and IV
c. I and II
d. I and III
e. I only.
9.
Determine if the statement describes a proton, electron or neutron:
a. has a negative charge
b. is the least massive
c. gives the nucleus its charge
d. not found in the nucleus
e. has no charge
f. is almost weightless
10.
Why is it that an atom has a neutral charge even though it has protons and electrons?
11.
Determine if the following elements are metal, metalloid or non-metal
a.
b.
c.
d.
e.
f.
Oxygen
Chlorine
Iron
Mercury
Aluminum
Carbon
12. Complete the following table:
Element/Symbol
Atomic number
Protons
Electrons
Iron/Fe
8
16
Hydrogen/H
11
13.
Write the name or formula for the following ionic compounds
a. Li+ and Clb. Na+ and O2c. Al3+ and Brd. Cu2+ and S2e. Ca2+ and P3f. Chromium (II) sulphide
Neutrons
Atomic Mass
14. Draw a Bohr model for a Chlorine atom:
15. Give an example of
a. A halogen
b. A noble gas
c. An alkali metal
d. A transition metal
16. List an element that forms a:
a. 1+ charge:
b. 2- charge:
17. True or False:
a. Matter is anything that is made up of mass and weight
b. Volume is the amount of space a substance occupies
c. A chemical change is a change in state of matter
Physical Science: Characteristics of Electricity
1. Which of the following statements is true?
a. Like charges attract
b. Opposite charges repel
c. Electric force decreases with increased distance between charges
d. Electric force decreases with increased charge sizes
e. Neutral objects are not attracted to positive or negative charges
2. A material through which electrons can freely travel is called:
a. A conductor
b. Acetate
c. An insulator
d. Current
e. A battery
3.'Current' is a quantity that can be best defined as:
a. the electric potential energy per one coulomb of charge
b. the electric force that reduces the movement of electrons through a circuit
c. the number of electrons found within a circuit at any given second
d. the amount of electrical charge passing through a point every second
e. a physical quantity measured in ohms
4. Which of the following quantities is likely to be the same at each point in a circuit with resistors in
series?
a. the current
b. the voltage
c. the resistance
d. the power output
e. the energy
5. If two light bulbs are wired in parallel and one burns out, what happens to the other one?
Questions 6-10 refer to the following diagram:
2Ω
6V
6Ω
.
6. In which type of arrangement are the resistors in this circuit?
7. What is the total resistance of this circuit?
8. How much current is running through the 4Ω resistor?
9. How much current is running through the 6Ω resistor?
10. How much power is lost in the 2Ω resistor?
4Ω
Questions 11-15 refer to the following diagram:
12V
3Ω
2Ω
2Ω
6Ω
11. What is the total resistance of this circuit?
12. List any resistors that experience the same voltage drop.
13. What is the total current of this circuit?
14. How much current passes through the 6Ω resistor?
15. Draw a circuit with a 9V battery, two resistors (3Ω and 12Ω) in parallel. Include a voltmeter
measuring the voltage across the 3Ω resistor and an ammeter measuring the current through the 12Ω
resistor.
16. Fill in the blanks in the chart with the appropriate words or phrases from the following list:
The ability of a material to
slow down the flow of
electrons.
The number of electrons
found within a circuit at any
given second.
The amount of electrical
charge passing through a
point every second.
The rate at which work is
done or energy is
transformed.
The ability to do work.
Current
Amps
Watts
Energy
Ohms
Power
Voltage
A
J
V
Quantity
Resistance
Units
R
E
W
O
C
Symbol
Definition
The electric potential energy
per one coulomb of charge
P
Joules
I
Earth and Space Science:
1.We know our universe is expanding because of:
a. parallax
b. blueshift
c. redshift
d. greenshift
e. like charges repel
2.Who was responsible for the widespread acceptance of the heliocentric model of the solar system?
a. Copernicus
b. Tycho Brahe
c. Galileo
d. Kepler
e. all of the above
3.What process ignites a star?
a. solar flares
b. asteroid collisions
c. supernovae
d. nuclear fusion
e. nuclear fission
4.What process causes us to experience different seasons?
a. the change in position of the moon relative to the earth
b. the change in the earth's proximity to the sun
c. the tilting of the earth along its axis
d. differential locations of holes in the ozone layer
e. the change in position of the sun relative to the solar system
5.Solar eclipses occur when:
a. a planet passes in between the earth and the sun
b. the earth passes between the sun and the moon
c. a planet passes in between the earth and the moon
d. the moon passes in between the earth and the sun
e. none of the above
6.What type of object rotates about the sun?
a. a planet
b. an asteroid
c. a comet
d. a meteoroid
e. all of the above
7.Proxima Centauri is a star only 4.2 light years away from our own solar system. If we were to travel at
half the speed of light, how soon could we reach the star?
a. 2.1 years
b. 4.2 years
c. 8.4 years
d. 16.8 years
e. light years are a measure of distance, not time, so there is no way to tell.
8.From which elements are stars composed?
a. wind and fire
b. carbon and oxygen
c. helium and hydrogen
d. plutonium and uranium
e. hydrogen and oxygen
9.Why are black holes black?
a. they are so dense that no nuclear fusion can occur
b. they exist within gas clouds through which light cannot penetrate
c. they are made of dark matter, which does not emit electromagnetic energy in our colour spectrum
d. they are so distant their light has yet to reach Earth
e. their gravitational field is so great no light can escape
10. What is the name of the explosion that high-mass stars cause when they die?
11. What is a solar system?
12. What is the difference between revolution and rotation or the Earth?
13. Match the technology with the function
1. Probe
2. Artificial satellite
3. Parallax
4. Infrared telescope
5. Space elevator
6. Optical telescope
A. Determines the distance
of planets using trigonometry.
B. Detects thermal energy from nearby planets,
stars and galaxies
C. Collects data and images of nearby planets
and structures by visiting them directly
D. Allows observation of planets, galaxies and
nebulae by refracting and reflecting light
E. Theoretical method of transporting people
and supplies from earth to orbit without use
of a shuttle.
F. Orbits earth and relays information.