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Physical Final

Total questions: 48

Worksheet time: 24mins

Name
Class
Date
1.
Which choice describes the Law of Conservation of Matter BEST?
a)
a process by which atoms of one or more substances are rearranged
b)
mass is never created nor destroyed
c)
the amount of time it takes for half of a sample to break down
d)
the measure of kinetic and potential energy
2.
TRUE or FALSE: Most of the atoms that are present at the start of a chemical reaction are present at the end.
a)
True
b)
False
3.
What is a chemical reaction?
a)
the amount of time it takes for half of a sample to break down
b)
how we measure how acidic a solution is
c)
a process by which atoms of one or more substances are rearranged
d)
the length of the path
4.
Which of the following are signs of a reaction?
a)
bubbles
b)
color change
c)
light being produced
d)
sample being broken down into smaller pieces
e)
ice
5.
Which of the following is NOT a property of an acid?
a)
Sour taste
b)
Does not conduct electricity
c)
pH is lower than 7
d)
Turns red with blue litmus paper
6.
When an object gets cold, what happens to the particles?
a)
The particles start to slow down.
b)
The particles start to speed up.
7.
When an object gets hotter, what happens to the particles?
a)
The particles start to slow down.
b)
The particles start to speed up.
8.
What is force?
a)
The Force Will Guide Me.
b)
a push or pull
c)
the law
d)
rate of acceleration
9.
Pushing an object across a hardwood floor is easier than a carpet because you have to overcome more what on a carpet?
a)
weight
b)
gravity
c)
friction
d)
rotation
10.
_______________ is the amount of time it takes for half of a sample of a radioisotope to break down.
a)
Half-life
b)
Specific heat
c)
mediums
11.
___________ is the amount of heat required to raise the temperature of one gram of an object by one degree.
a)
Half-life
b)
Specific heat
c)
mediums
12.
Mechanical waves need ___________ to travel through.
a)
Half-life
b)
Specific heat
c)
mediums
13.
______________________ is when a wave bounces off a surface it cannot pass.
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference
e)
Standing waves
14.
______________________ is the bending of waves as it enters a new medium.
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference
e)
Standing waves
15.
______________________ is the bending of waves as it moves around an object.
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference
e)
Standing waves
16.
______________________ is when two or more waves overlap and combine.
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference
e)
Standing waves
17.
______________________ is when a wave appears to stay in one place.
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference
e)
Standing waves
18.
___________ is the direction from the starting point and the length of a straight line from the starting point to the ending point.
a)
Displacement
b)
Distance
c)
Speed
d)
Velocity
e)
Acceleration
19.
___________ is the length of the path.
a)
Displacement
b)
Distance
c)
Speed
d)
Velocity
e)
Acceleration
20.
___________ is the ratio between the distance traveled and the time of an object.
a)
Displacement
b)
Distance
c)
Speed
d)
Velocity
e)
Acceleration
21.
___________ is the speed in a given direction.
a)
Displacement
b)
Distance
c)
Speed
d)
Velocity
e)
Acceleration
22.
___________ is the rate at which velocity changes directions.
a)
Displacement
b)
Distance
c)
Speed
d)
Velocity
e)
Acceleration
23.
What color are the products?
a)
blue
b)
green
c)
pink
24.
What color are the reactants?
a)
blue
b)
green
c)
pink
25.
What color are the coefficients?
a)
pink
b)
green
c)
blue
26.

A substance combining with oxygen and releasing light and heat

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

27.

What is this reaction type:

Two or more combine to form one

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

28.

What is this reaction type:

One breaks down into two or more

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

29.

What is this reaction type:

two elements are replaced

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

30.

What is this reaction type:

one element is replaced

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

31.

What is this reaction type:

Na + AgCl → Ag + NaCl

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

32.

What is this reaction type:

FeS + HCl → FeCl₂ + H₂S

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

33.

What is this reaction type:

CO + Cl₂ → COCl₂

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

34.

What is this reaction type:

KClO₃ → KCl + O₂

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

35.

Slippery, turns red litmus paper blue, pH > 7, and dissolves fats and oils are properties of what?

a)

acid

b)

base

c)

neutral

36.

pH < 7, sour, turns blue litmus paper red, H+, and conducts electricity are properties of what?

a)

acid

b)

base

c)

neutral

37.

What type of radiation is blocked by a thin piece of paper?

a)

alpha

b)

beta

c)

gamma

38.

What is blocked by thick concrete?

a)

alpha

b)

beta

c)

gamma

39.

When one atom splits into two

a)

fission

b)

fusion

40.

When two atoms fuse into one

a)

fission

b)

fusion

41.

number of complete cycles in a given time period

a)

period

b)

frequency

c)

wavelength

d)

amplitude

42.

time required for one cycle

a)

period

b)

frequency

c)

wavelength

d)

amplitude

43.

distance between a given point and the same point on the next cycle

a)

period

b)

frequency

c)

wavelength

d)

amplitude

44.

wavelength * frequency

a)

period

b)

frequency

c)

wavelength

d)

wave speed

45.

physical response to the intensity of sound

a)

loudness

b)

intensity

c)

frequency

d)

pitch

46.

rate at which wave energy flows through a given area

a)

loudness

b)

intensity

c)

frequency

d)

pitch

47.

frequency of a sound as you perceive it

a)

loudness

b)

intensity

c)

frequency

d)

pitch

48.

depends on how fast the source vibrates

a)

loudness

b)

intensity

c)

frequency

d)

pitch