Duplicate of SNC1D1 Final Exam Review

Question 1

These images represent

Accepted Answer

an open circuit; a closed circuit

Question 2

The variety of living things found in a specific area is referred to as:

Accepted Answer

Biodiversity

Question 3

An invasive species

Accepted Answer

grows in population and negatively effects the environment

Question 4

An ecological niche refers to:

Accepted Answer

the interactions organisms have with one another

Question 5

Ernest Rutherford used a thin sheet of (blank) and (blank) to determine what atoms were made of

Accepted Answer

Gold; Positively charged particles

Question 6

You can see two or more substances in mechanical mixtures, but you cannot in solutions.

Accepted Answer

True

Question 7

Producers use this process to absorb sunlight and make their own energy-rich food:

Accepted Answer

Photosynthesis

Question 8

The Law of Electric Charges states that NEGATIVE CHARGES cause electrons in a neutral object:

Accepted Answer

to move away

Question 9

An ecosystem is made of living and non-living things. Other words for living and non-living:

Accepted Answer

are biotic and abiotic

Question 10

What are molecules, and what elements are often found in molecules naturally?

Accepted Answer

Two or more bonded atoms; hydrogen, carbon and oxygen.

Question 11

A property that can be observed: (blank). A property that can be measured: (blank).

Accepted Answer

Qualitatif, quantitative

Question 12

These three diagrams indicate:

Accepted Answer

A cell; 3 cells; and a variable DC power supply

Question 13

How many neutrons are in a single atom of this element?

Accepted Answer

4

Question 14

If the current (I=1.2A) and the voltage (V=6.0V), what is the resistance (R)?

Accepted Answer

5Ω

Question 15

What are the 7 diatomic molecules, and what is special about them?

Accepted Answer

H O F Br I N Cl; two-atom molecule

Question 16

What is the mass (m) of the following object, given that V= 10cm3 and D= 13 g/cm3

Accepted Answer

130 g

Question 17

Hair standing up after putting on a sweater, balloon attracting hair. These are examples of:

Accepted Answer

Static electricity

Question 18

Elements in the second column of the periodic table include, are called, and ionic charge is:

Accepted Answer

Be, Mg, Ca, Sr, Ba, Ra; ALKALINE EARTH METALS; 2+

Question 19

An atom that looses an electron is (blank) and an element that gains an electron is (blank):

Accepted Answer

A cation; an anion

Question 20

Freezing point, melting point and boiling point are all:

Accepted Answer

Characteristic physical properties

Question 21

Earth's atmosphere is made up of which go the following gasses:

Accepted Answer

78% Nitrogen, 21% Oxygen, and 1% of other gasses

Question 22

Which of the following is not true:

Accepted Answer

The atmosphere is made of animals

Question 23

How do objects become charged?

Accepted Answer

When electrons are transferred from one object to another

Question 24

In order of LEAST to MOST space between particles, pick the best answer:

Accepted Answer

Solid, liquid, gas

Question 25

Metals and metals form (blank), whereas metals and non-metals form (blank):

Accepted Answer

Mixtures (alloys); ionic compounds

Question 26

On parallel circuits, the electrons flow in:

Accepted Answer

through two different objects through two different pathways

Question 27

Limiting factors can be both biotic and abiotic:

Accepted Answer

True

Question 28

Rutherford thought that if an atom was both positive and negative, positive particles would:

Accepted Answer

Pass straight through

Question 29

What did Rutherford conclude from his gold-foil experiment?

Accepted Answer

That neutral particles must be in the centre of atoms

Question 30

The elements in the first column of the periodic table include and are called:

Accepted Answer

H, Li, Na, K, Rb, Cs, Fr; ALKALI METALS

Question 31

Niels Bohr discovered that electrons orbit around the nucleus by:

Accepted Answer

Using light to observe colours emitted by orbiting electrons

Question 32

Cellular respiration requires sugar and oxygen to create:

Accepted Answer

carbon dioxide; water and energy

Question 33

In charging by induction, electrons are NOT transferred between objects.

Accepted Answer

True

Question 34

The noble gasses are chemically inert, meaning that they:

Accepted Answer

Two of the above

Question 35

You can permanently charge an object by induction if you:

Accepted Answer

Ground the object before you remove the charged object

Question 36

The Law of Electric Charges states that POSITIVE CHARGES cause electrons in a neutral object:

Accepted Answer

to move toward it

Question 37

Electric potential is:

Accepted Answer

All of the above

Question 38

Good conductors allow electrons to pass through them easily, that is to say:

Accepted Answer

Good conductors allow electron flow with some resistance

Question 39

A series circuit with more loads (i.e. lightbulbs) experience more (blank) and less (blank):

Accepted Answer

Resistance; current

Question 40

In a covalent bond, atoms (blank) electrons These compounds are (blank) than ionic compounds.

Accepted Answer

share; stronger and more stable

Question 41

An electric current is the rate of electron flow, and is measured by an ammeter

Accepted Answer

True

Question 42

How can you tell that a chemical change has taken place?

Accepted Answer

all of the above

Question 43

Which of the following best describes how static electricity works?

Accepted Answer

Electrons shift between neutral objects = charged objects

Question 44

Lighting happens when:

Accepted Answer

All of the above

Question 45

Charging by friction occurs when you rub two objects together and:

Accepted Answer

The object with more affinity for electrons becomes negative

Question 46

Another word for trophic level is (blank). (Blank) have the lowest trophic level.

Accepted Answer

Feeing level; producers

Question 47

Which of the following best explains why certain atoms are more likely to gain/lose electrons?

Accepted Answer

All of the above

Question 48

Electrons flow one way in a series circuit. If two loads are part of the same series:

Accepted Answer

a blown fuse will prevent both loads from working

Question 49

Name the ionic compound created when magnesium and fluorine form an ionic bond.

Accepted Answer

Magnesium fluoride

Question 50

Name these two elements:

Accepted Answer

Lithium, Fluorine

Question 51

The water cycle and carbon cycle are examples that:

Accepted Answer

all of the above

Question 52

Which of the following is correct?

Accepted Answer

all of the above

Question 53

In photosynthesis, carbon dioxide and water need (blank) to form (blank) and oxygen

Accepted Answer

Light energy; sugar

Question 54

A pure substance can contain more than one element:

Accepted Answer

False

Question 55

Which of these aspects of an atom never change:

Accepted Answer

Number of protons

Question 56

In an atom, electrons are (blank) charged, and are found (blank) the nucleus.

Accepted Answer

Negatively; outside

Question 57

The atomic number refers to how many (blank), and the atomic mass refers to the (blank):

Accepted Answer

Protons; Total mass of neutrons and protons

Question 58

When a positively charged object is grounded:

Accepted Answer

Electrons flow from the ground into the object

Question 59

Ionic compounds are:

Accepted Answer

Not a molecule, held together by charge differences

Question 60

An electric discharge:

Accepted Answer

All of the above

Duplicate of SNC1D1 Final Exam Review

Questions 60

Duplicate of SNC1D1 Final Exam Review

Questions 60