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WorksheetsEnd-of-Year Final Exam (60 Questions)
Total questions: 60
Worksheet time: 30mins
Density is best defined as
the mass of an object divided by its volume
the amount of space an object takes up
the weight of an object
the temperature of a substance
The density of water at room temperature is approximately
0.5 g/cm³
1.0 g/cm³
1.5 g/cm³
2.0 g/cm³
An object has a mass of 18 g and a volume of 6 cm³. What is its density?
2 g/cm³
3 g/cm³
6 g/cm³
12 g/cm³
Which property of matter helps explain why objects float or sink?
Mass
Volume
Density
Weight
When most substances are heated, their density generally
increases
stays the same
decreases
doubles
Which unit is commonly used to measure density?
g/cm³
g/s²
m/s
N/kg
A material with a density of 7.8 g/cm³ is most likely
water
oil
wood
iron
If the mass of an object doubles while its volume stays the same, the density
stays the same
is cut in half
becomes zero
doubles
Speed is calculated using the formula
speed = mass ÷ time
speed = distance ÷ time
A car travels 150 km in 3 hours. What is its average speed?
25 km/h
45 km/h
50 km/h
75 km/h
Acceleration is defined as
a change in distance
a change in speed
a change in velocity over time
force divided by mass
Which formula is used to calculate acceleration?
a = v × t
a = d ÷ t
a = m × v
a = (vf – vi) ÷ t
A car speeds up from 0 m/s to 20 m/s in 5 seconds. What is its acceleration?
2 m/s²
4 m/s²
5 m/s²
10 m/s²
If an object is slowing down, its acceleration is
positive
zero
negative
constant
Which unit is used to measure acceleration?
m/s
m/s²
km/h
N
A runner covers 400 m in 80 s. What is their speed?
4 m/s
5 m/s
6 m/s
8 m/s
An object moving at constant speed in a straight line has
increasing acceleration
decreasing acceleration
zero acceleration
maximum acceleration
Which situation describes acceleration?
A car parked in a driveway
A runner jogging at constant speed
Who developed the three laws of motion?
Galileo Galilei
Albert Einstein
Charles Darwin
Isaac Newton
Newton’s First Law is also called the Law of
Gravity
Reaction
Inertia
Acceleration
Inertia is an object’s tendency to
speed up
resist changes in motion
increase force
lose mass
Which example shows Newton’s First Law?
A. A rocket launching upward
B. A car accelerating forward
C. A book staying at rest on a table
D. A swimmer pushing water backward
Newton’s Second Law is represented by the formula
F = m ÷ a
F = m × a
F = a + m
F = m + a
If force increases while mass stays the same, acceleration will
decrease
stay the same
increase
disappear
A 10 kg object accelerates at 3 m/s². What is the net force?
13 N
30 N
300 N
7 N
Which unit is used to measure force?
Joule
Kilogram
Newton
Meter
Newton’s Third Law states that
force equals mass times acceleration
objects resist motion
When you walk, your foot pushes backward on the ground and the ground
pulls you backward
stays still
pushes you forward
absorbs the force
29. Action-reaction forces
A. act on the same object
B. cancel each other out
C. act on different objects
D. only occur during motion
Why don’t action-reaction forces cancel out?
They are unequal
They act on different objects
They act at different times
They are caused by gravity
A rocket moves upward because
gravity pushes it
air resistance lifts it
exhaust gases push downward
fuel pulls it upward
Which situation shows balanced forces?
A car accelerating
A rocket launching
A parachutist moving at constant speed
A ball being kicked
Increasing mass while keeping force constant causes acceleration to
increase
stay the same
double
decrease
Kinetic energy is the energy of
heat
motion
position
light
The formula for kinetic energy is
KE = mv
KE = ½mv²
KE = mgh
KE = Fd
Which factor does NOT affect kinetic energy?
mass
velocity
If an object's velocity doubles, its kinetic energy
doubles
triples
quadruples
stays the same
The SI unit for kinetic energy is
Newton
Watt
Joule
Meter
An object with mass 2 kg moving at 5 m/s has kinetic energy of
10 J
25 J
50 J
100 J
Work is calculated using the formula
W = F ÷ d
W = m × a
W = F × d
W = ½mv²
Mechanical energy is the sum of
heat and light
force and motion
work and power
kinetic and potential energy
When an object stops moving, its kinetic energy becomes
negative
zero
infinite
mass
Kinetic energy is conserved in which type of collision?
inelastic
frictional
elastic
plastic
A chemical reaction is
a physical change
a change that forms new substances
a change in state
a change in mass only
Substances present at the start of a reaction are called
products
coefficients
The Law of Conservation of Mass states that
mass is created
products have more mass
mass is destroyed
mass is conserved
A balanced chemical equation has
equal charges
equal molecules
equal atoms on both sides
equal coefficients only
Which number in a chemical equation tells how many units are involved?
exponent
coefficient
subscript
symbol
One mole contains approximately
6.02 x 10^23 particles
1,000 particles
100 particles
12 particles
An acid produces which ion in water?
OH−
Na+
H3O+
Cl−
A base produces which ion in water?
H+
OH−
H3O+
Na+
What color does blue litmus paper turn in acid?
Blue
Green
Yellow
Red
Which solution is most basic?
Lemon juice
Vinegar
Water
Bleach
Bases are described as having a
sour taste
slippery feel
A substance that changes color in acids and bases is called a(n)
electrolyte
acid
indicator
reactant
The pH of a neutral solution is
0
1
14
7
Which is an example of a chemical change?
Ice melting
Paper tearing
Rust forming
Water boiling
Which acid is commonly found in the stomach?
Nitric acid
Sulfuric acid
Hydrochloric acid
Acetic acid
A substance that conducts electricity in solution is a(n)
indicator
electrolyte
reactant
product
Which statement best describes bases?
They produce hydronium ions
They have a pH below 7
They turn blue litmus red
They accept H+ ions
