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Properties of Liquids

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.
What is viscosity?
a)
A liquid's resistance to flow.
b)
a liquids flow.
c)
a liquid
d)
gas to solid.
2.

High viscosity is when particles are closer together and the cohesive force is stronger.

a)

True

b)

False

c)

I don't know

3.

Low viscosity is when particles are farther apart and the cohesive force is stronger.

a)

True

b)

False

c)

I don't know

4.

Liquids with very high viscosity flow very _______________________.

a)

fast

b)

not at all

c)

slow

d)

whenever it wants

5.

Liquids with very low viscosity flow very _______________________.

a)

fast

b)

not at all

c)

slow

d)

whenever it wants

6.

The best example of high viscosity would be?

a)

Honey

b)

Soap

c)

Marbles

d)

Water

7.

The best example of a substance with low viscosity is?

a)

Honey

b)

Soap

c)

Marbles

d)

Water

8.

Which of these factors affects Viscosity?

a)

Temperature

b)

Colour

c)

Taste

9.

Which of the following is NOT a property of a liquid

a)

surface tension

b)

viscosity

c)

capillary action

d)

polar

10.

Water droplets are mainly formed by what force?

a)

Viscosity

b)

Hydrogen Bonding

c)

Van der Waals forces

d)

Dipole-Dipole interactions

11.

A substance with a high amount of intermolecular forces will have a (a)   vapour pressure.

12.

Would a substance with a high vapour pressure have strong or weak intermolecular forces?

(a)  

13.

Capillary action is

a)

Caused by cohesive and adhesive forces

b)

Allows some liquids to 'flow' vertically up a thin tube

c)

Not observed in liquid mercury

d)

All of the above

14.

Cohesive forces

a)

Are the attraction of molecules within a liquid

b)

Are the attraction of molecules to the container walls

c)

Are only present when the liquid is exposed to glue

d)

Are important for upward movement in capillary action

15.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
16.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
17.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
18.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
19.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
20.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
21.
 Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?
a)
The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet
c)
The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
22.
Why does water move from the roots to the leaves of plants?
a)
Water is pushed by solutes
b)
Capillary action pulls the water molecules like a chain
c)
Water is pulled by gravity
d)
Water’s cohesion causes it to “pull” towards the leaves
23.
What is the gaseous form of water called?
a)
Steam
b)
Water vapor
c)
Vapor
d)
Water mist
24.

Why does water ice have a lower density than liquid water?

a)

Because it floats

b)

Because it is a crystal

c)

Because the molecules expand in volume as water freezes into a crystal

d)

Because ice is colder than water

25.
What is adhesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
26.
What is cohesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
27.
What is surface tension?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
28.
Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?
a)
Water expands as it freezes.
b)
Water is an excellent solvent.
c)
Water exhibits cohesive behavior.
d)
Water is able to moderate temperature.
29.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
30.
 Which of the following characteristics of water is not a result of hydrogen bonding?
a)
adhesive strength
b)
capillarity
c)
cohesive strength
d)
All of the above are a result of hydrogen bonding.
31.

Water is a polar molecule, which means it has a positive and a negative side. Hydrogen bonds form when:

a)

The positive end of one water molecule bonds to the positive end of another water molecule.

b)

The negative end of one water molecule bonds to the negative end of another water molecule.

c)

The positive end of one water molecule bonds to the negative end of another water molecule.

32.

The ability of water molecules to stick to each other, creating surface tension is called:

a)

Cohesion

b)

Adhesion

c)

Insulation

d)

Ph

33.

The fact that water can stick to other substances is called:

a)

Ph

b)

Adhesion

c)

Cohesion

d)

Insulation

34.

Heat Capacity is a measure of the heat required to raise the temperature of 1g of a substance by 1°C.


So...

True or False:

Water has a very high heat capacity, which means it resists changing temperature when heat is added or removed.

a)

True

b)

False

35.

A insect like a water strider can skate along the top of a pond because:

a)

covalent bonds result in water cohesion

b)

hydrogen bonds result in water cohesion (surface tension)

c)

low surface tension of water

36.
molecule in which opposite ends have opposite electric charges
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
37.

As you add drops of water to the surface of a coin, each drop sticks to the other water droplet because of ________________, and sticks to the penny because of ______________.

a)

adhesion, cohesion

b)

cohesion, adhesion

c)

capillary action, specific heat

d)

specific heat, capillary action

38.
When water molecules stick together and create a trampoline like surface, it is called ___________________. 
a)
surface tension
b)
capillary action
c)
adhesion
d)
cohesion
39.

When water molecules stick to each other because of the polar attraction between hydrogen and oxygen atoms, it is called ______________.

a)

adhesion

b)

cohesion

c)

specific heat index

d)

properties of water

40.

What molecule is this?

a)

calcium

b)

hydrogen

c)

helium

d)

water

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