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snc1w exam review

Total questions: 85

Worksheet time: 1hrs 27mins

Name
Class
Date
1.

What is the final output of photosynthesis?

a)
b)
c)
d)
2.

Which of these molecules completes the process of cellular respiration? glucose + oxygen ----> water + _________

a)

A. ATP , carbon dioxide

b)

B. ADP, oxygen

c)

C. NADH, oxygen

d)

D. oxygen, ADP

3.

Which of these is NOT one of the laws of charges?

a)

Like charges repel

b)

Opposite charges attract

c)

Charged objects attract neutral objects

d)

Unlike charges repel

4.

Which of the following statements best describes an electrical conductor?

a)

does not allow electricity to pass through it

b)

slows the flow of electricity through it

c)

allows the flow of electricity through it

5.

Which of the following is an example of a conductor in a circuit?

a)

light bulb

b)

battery

c)

switch

d)

wires

6.

Which of the following is an example of a load in a circuit?

a)

light bulb

b)

battery

c)

switch

d)

wires

7.

Electricity is the movement of _____.

a)

circuit

b)

electrons

c)

molecules

d)

atoms

8.

If you have a string of lights and one light goes out but the others stay lit, which type of circuit do you have?

a)

broken

b)

parallel

c)

short

d)

series

9.
This kind of electricity is formed by the build up of positive or negative charges on a surface.
a)
magnetism
b)
static electricity
c)
conductors
d)
current electricity
10.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
11.

What unit is used to measure resistance?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

12.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

13.

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

a)

1/3 ohms

b)

3 ohms

c)

27 ohms

d)

9 ohms

14.

Electric current is defined as

a)

movement of charge

b)

negative terminal to positive terminal

c)

positive terminal to negative terminal

d)

the rate of flow of electric charges through a conductor

15.
Electricity is the flow of _________.
a)
protons
b)
neutrons
c)
electrons
16.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
17.

An electric iron draws a current 4 A when connected to a 220 V mains. Its resistance must be

a)

1000 Ω

b)

55 Ω

c)

44 Ω

d)

none of these

18.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
19.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
20.

The advantages and disadvantages of a particular energy source are shown in the following table. The energy source being described in the table above is most likely

a)

solar

b)

biomass

c)

geothermal

d)

natural gas

21.

The most efficient system shown has an efficiency of (a)   %.

22.

Which of the following actions will not reduce waste of energy in a home?

a)

Replacing single-pane windows with double-pane windows

b)

Installing a programmable thermostat to control a furnace

c)

Wrapping an insulating blanket around a hot water tank

d)

Installing an air conditioner to reduce temperatures

23.

Which of the following two methods of power generation provide the least consistent energy?

a)

Wind and solar power

b)

Hydro and wind power

c)

Nuclear and solar power

d)

Hydro and nuclear power

24.

The advantages and disadvantages of a particular energy source are shown in the following table. The energy source being described in the table above is most likely

a)

solar

b)

biomass

c)

geothermal

d)

natural gas

25.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

a)

5%

b)

50%

c)

55%

d)

100%

26.

Total energy = 200J
Useful energy = 20J

Workout the efficiency of this lightbulb.
efficiency = useful enegytotal energy in ×100efficiency\ =\ \frac{useful\ enegy}{total\ energy\ in}\ \times100  

a)

100%

b)

80%

c)

40%

d)

10%

27.
To increase the EFFICIENCY of energy use, we could...
a)
Turn off lights when not in use
b)
Keep the car running as you go into the store
c)
Water the plants in a drought
28.
A heating element resistance is 24 ohms. The current measures 10 Amps. What is the power?
a)
240 watts
b)
1,200 watts
c)
1,000 watts
d)
2,400 watts
29.

An electron is:

a)

Positively charged

b)

Negatively charged

c)

Neutral

30.

The atomic number of an element tells us:

a)

The number of protons

b)

The number of neutrons

c)

The number of protons plus neutrons

d)

The atomic mass

31.

An ice cube melting is an example of a:

a)

Physical change

b)

Chemical change

32.

Beryllium's atomic number is 4 and its atomic mass is 9. How many neutrons will a beryllium atom have?

a)

4

b)

5

c)

9

d)

13

33.

Which of these is NOT a physical property?

a)

Colour

b)

Melting Point

c)

Hardness

d)

Flammability

34.

In a Bohr-Rutherford Diagram, the innermost shell has a maximum of how many electrons?

a)

1

b)

2

c)

8

d)

18

35.

Calcium's atomic number is 20. A calcium ion has a charge of +2. How many electrons does a calcium ion have?

a)

18

b)

20

c)

22

d)

40

36.

A rotting apple is an example of a:

a)

Physical change

b)

Chemical change

37.

Boron's atomic number is 5. How many valence electrons will a boron atom have?

a)

1

b)

2

c)

3

d)

5

38.

The charge of an ion is -3. This means the atom must have:

a)

Gained 3 protons

b)

Lost 3 protons

c)

Gained 3 electrons

d)

Lost 3 electrons

39.

Is solubility (ability to dissolve) a physical property or a chemical property?

a)

Physical Property

b)

Chemical Property

40.

Here is the Bohr-Rutherford diagram for a neutral Nitrogen atom. To have a completely filled outer shell, it will need to:

a)

Lose 3 electrons

b)

Gain 3 electrons

c)

Lose 5 electrons

d)

Gain 5 electrons

41.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
42.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
43.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
44.
A proton is....
a)
A negatively charged subatomic particle
b)
A positively charged subatomic particle
c)
A neutrally charged subatomic particle
d)
The only subatomic particle located in the nucleus
45.
A neutron has a charge of
a)
+2
b)
No charge
c)
-1
d)
+1
46.
How many electrons does Oxygen need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
47.
Group 18 elements are known as the _____ _____ and have full valence shells.
a)
royal gases.
b)
supreme solids.
c)
noble gases.
d)
legit liquids.
48.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
49.
What subatomic particles would you find in the nucleus of an atom?
a)
Protons only
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons and Electrons 
50.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
5
d)
25
51.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
52.
Neon has an atomic number of 10 and an atomic mass of 20.180.  How many protons, electrons, and neutrons will it have?
a)
P=10 E=10 N=11
b)
P=5  E=5  N=10
c)
P=10  E=10  N=10
d)
P=10  E=5  N=5
53.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
54.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
55.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
56.
Which of the following is a chemical property?
a)
ability to rust
b)
ability to conduct heat
c)
volume
d)
magnetic
57.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
58.

In the compound MgCl2, the subscript 2 indicates that

a)

there are two magnesium ions for each ion of chlorine.

b)

the chloride ion is twice the size of the magnesium ion.

c)

magnesium and chlorine form a double covalent bond.

d)

there are two chloride ions for each magnesium ion.

59.

A positively charged sodium ion and a negatively charged chlorine ion are joined by a(n)____________ to form the compound sodium chloride

a)

ionic bond

b)

covalent bond

c)

negative bond

d)

positive bond

60.

The nitrogen and hydrogen atoms that make up ammonia are held together by a (n) _____________ because the atoms share valence electrons unequally

a)

covalent bond

b)

molecule

c)

ionic bond

d)

polar molecule

61.
Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?
a)
How far they kick the soccer ball
b)
who the person is
c)
how well they do on the math test
d)
Type of soccer ball.
62.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
63.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
64.
Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
65.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
66.

The parts of Earth where life exists

a)

lithosphere

b)

biosphere

c)

hydrosphere

d)

atmosphere

67.

During photosynthesis, plants use the Sun's energy to pull what element away from carbon dioxide and water?

a)

hydrogen

b)

carbon

c)

oxygen

68.

Any living thing that gets the energy it needs by making its own food.

a)

photosynthesis

b)

cellular respiration

c)

producer

d)

consumer

69.

A model that describes how the energy that is stored in food is transferred from one living thing to another.

a)

glucose

b)

producer

c)

food chain

d)

cellular respiration

70.

A harmful interaction between two or more organisms that can occur when organisms compete for the same resource.

a)

carrying capacity

b)

predator

c)

host

d)

competition

71.

Any organism that exists by hunting and eating other organisms.

a)

predator

b)

limiting factor

c)

competition

d)

parasite

72.

Approximately how much energy moves from one trophic level to the next?

a)

1%

b)

10%

c)

50%

d)

90%

73.

This is the maximum population of a species that an ecosystem can sustain.

a)

logistical growth

b)

density-independent limiting factor

c)

density-dependent limiting factor

d)

carrying capacity

74.

The word formula for Photosynthesis is:

a)

carbon dioxide + water ----> oxygen + glucose + water

b)

oxygen + water ----> carbon dioxide + glucose

c)

carbon dioxide + water ---> energy

75.

What is the word equation for Cellular Respiration?

a)

carbon dioxide + energy ---> water + energy + glucose

b)

oxygen + glucose + water ---> carbon dioxide + energy

c)

oxygen + glucose ----> water + carbon dioxide + energy

76.

A relationship between a mosquito and a human is called __________ and it means that_______:

a)

parasitism- one gains and one is harmed

b)

predation- one gets eaten and one benefits

c)

competition - one species gains over another

d)

mutualism- both gain

e)

commensalism- one gains, one is not affected

77.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
78.

What would happen to the bird if the green fish died out?

a)

the bird population would grow

b)

the bird population would die out

c)

the smaller fish will die out

79.
When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?
a)
Non-native plants are able to mutate rapidly
b)
Non-native  plants cause native animals to relocate
c)
Non-native plants are able to be used for medicine
d)
Non-native plants compete with native plants for resources
80.
This is known as a relationship in which one organism benefits, while the other is unaffected.
a)
Parasitism
b)
Mutualism
c)
Immigration
d)
Commensalism
81.
A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?
a)
Predator-Prey
b)
Commensalism
c)
Mutualism
d)
Parasitism
82.
A relationship between two organisms where one benefits while the other is harmed is known as what?
a)
Decomposition
b)
Consummerism
c)
Mutualism
d)
Parasitism
83.
Why does too much carbon dioxide in the atmosphere cause climate change?
a)
It cools down our planet.
b)
It blocks out UV rays.
c)
It traps heat and warms up our planet.
d)
It lets sunlight escape.
84.

Which gas of the Earth's atmosphere is classified as a greenhouse gas?

a)

Nitrogen

b)

Carbon Dioxide

85.
These are all important greenhouse gases.
a)
Oxygen, hydrogen and nitrogen
b)
Carbon dioxide, helium and clouds
c)
Carbon dioxide, water vapour and methane
d)
Methane, ethane and hydrogen

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