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Worksheets4TH QTR Physics Reviewer
Total questions: 138
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
What is the net force acting on an object in equilibrium?
a)
Equal to its weight
b)
Equal to its mass
c)
Zero
d)
Equal to its velocity
2.
What type of equilibrium occurs when an object is at rest?
a)
Dynamic equilibrium
b)
Translational equilibrium
c)
Static equilibrium
d)
Rotational equilibrium
3.
What is the term for forces with lines of action through the same point?
a)
Normal forces
b)
Tension forces
c)
Concurrent forces
d)
Frictional forces
4.
What is the force a surface applies on another body perpendicular to the surface called?
a)
Tension
b)
Weight
c)
Normal force
d)
Friction
5.
What is the pulling or stretching force transmitted along a rope called?
a)
Normal force
b)
Weight
c)
Tension
d)
Friction
6.
According to the equilibrium rule, what is the vector sum of forces acting on a non-accelerating object?
a)
Equal to its mass
b)
Equal to its weight
c)
Zero
d)
Equal to its velocity
7.
For an object resting on a level surface, what is the relationship between the normal force (FN) and the weight (W)?
a)
FN > W
b)
FN < W
c)
FN = W
d)
FN = 0
8.
For an object hanging from a vertical rope, what is the relationship between the tension (T) and the weight (W)?
a)
T > W
b)
T < W
c)
T = W
d)
T = 0
9.
If an object is suspended at an angle, what are the components of tension (Tx and Ty) related to?
a)
Tx = W, Ty = Fapp
b)
Tx = Tcos, Ty = Tsin
c)
Tx = Tsin, Ty = W
d)
Tx = W, Ty = Tsin
10.
A 10 kg object and a 20 kg object rest on a surface. What is the total normal force (FN)?
a)
98 N
b)
196 N
c)
294 N
d)
392 N
11.
A 13 kg cube hangs from a rope, and a 39 kg sphere hangs below it. What is the tension in the first rope?
a)
127.4 N
b)
382.2 N
c)
509.6 N
d)
637 N
12.
In the previous question, what is the tension in the second rope supporting the sphere?
a)
127.4 N
b)
382.2 N
c)
509.6 N
d)
637 N
13.
A 15 kg object and another object have a combined normal force of 250 N. What is the mass of the second object?
a)
5.51 kg
b)
7.70 kg
c)
10.51 kg
d)
12.51 kg
14.
A 2.5 kg object and another object have a combined normal force of 100 N. What is the weight of the second object?
a)
24.5 N
b)
75.5 N
c)
100 N
d)
124.5 N
15.
In the previous question, what is the mass of the second object?
a)
5.51 kg
b)
7.70 kg
c)
10.51 kg
d)
12.51 kg
16.
An object with a weight of 30 N is suspended at a 35° angle. What is the tension in the rope?
a)
15 N
b)
20 N
c)
26.15 N
d)
30 N
17.
What is translational equilibrium?
a)
An object rotating at constant speed
b)
An object with non-zero net force
c)
An object with zero net force
d)
An object accelerating at constant rate
18.
What is the condition for an object to be in static equilibrium?
a)
Constant velocity
b)
Zero velocity
c)
Constant acceleration
d)
Zero acceleration
19.
When an object is at rest on a level surface, what forces are balanced?
a)
Tension and weight
b)
Normal force and friction
c)
Normal force and weight
d)
Tension and friction
20.
What is circular motion?
a)
Movement in a straight line
b)
Movement along the circumference of a circle
c)
Random movement
d)
Oscillating movement
21.
What are the two types of speeds in circular motion?
a)
Linear and angular
b)
Tangential and rotational
c)
Constant and variable
d)
Static and dynamic
22.
What is Uniform Circular Motion (UCM)?
a)
Motion with changing velocity
b)
Motion with constant velocity along a straight line
c)
Motion with constant velocity along a circular path
d)
Motion with decreasing velocity
23.
What is the direction of the velocity vector in UCM?
a)
Constant
b)
Changing
c)
Zero
d)
Random
24.
What is tangential velocity?
a)
Velocity towards the center
b)
Velocity away from the center
c)
Velocity tangent to the circular path
d)
Average velocity
25.
How is tangential speed calculated?
a)
v = r/ω
b)
v = rω
c)
v = ω/r
d)
v = r+ω
26.
Where does centripetal acceleration point?
a)
Tangent to the circle
b)
Away from the center
c)
Towards the center
d)
Randomly
27.
What is the magnitude of centripetal acceleration (ac)?
a)
v/r
b)
v²r
c)
v²/r
d)
vr²
28.
What is centrifugal force?
a)
A real force towards the center
b)
A real force away from the center
c)
A pseudo-force away from the center
d)
A force tangent to the circle
29.
What is the constant distance from the center of the circle to its circumference called?
a)
Diameter
b)
Circumference
c)
Radius
d)
Arc length
30.
What is the time for an object to travel a complete revolution called?
a)
Frequency
b)
Period
c)
Speed
d)
Acceleration
31.
What is the number of revolutions in one second called?
a)
Period
b)
Speed
c)
Frequency
d)
Acceleration
32.
What is the formula for tangential velocity (v)?
a)
v = rω
b)
v = 2πr/T
c)
v = v²/r
d)
v = 1/f
33.
What is the formula for centripetal acceleration (ac)?
a)
ac = v²/r
b)
ac = v/r
c)
ac = rω
d)
ac = 1/T
34.
What is the formula for centripetal force (Fc)?
a)
Fc = mv/r
b)
Fc = mv²r
c)
Fc = mrω
d)
Fc = m/T
35.
What is the formula for period (T)?
a)
T = 1/f
b)
T = 2πr/v
c)
T = v²/r
d)
T = rω
36.
What is the formula for frequency (f)?
a)
f = 1/T
b)
f = 2πr/v
c)
f = v²/r
d)
f = rω
37.
What is the SI unit for tangential velocity?
a)
m/s²
b)
Hz
c)
N
d)
m/s
38.
What is the SI unit for centripetal acceleration?
a)
m/s
b)
Hz
c)
N
d)
m/s²
39.
What is the SI unit for centripetal force?
a)
m/s
b)
Hz
c)
N
d)
m/s²
40.
What shape is the orbit of a planet according to Kepler’s First Law?
a)
Circle
b)
Square
c)
Ellipse
d)
Triangle
41.
What characterizes an ellipse?
a)
Radius and diameter
b)
Eccentricity and major axis length
c)
Area and circumference
d)
Volume and surface area
42.
What is the longer axis of an ellipse called?
a)
Minor axis
b)
Diameter
c)
Major axis
d)
Radius
43.
What does eccentricity describe in an ellipse?
a)
Area
b)
Degree of flatness
c)
Length
d)
Volume
44.
What are the special points on the major axis of an ellipse called?
a)
Vertices
b)
Centers
c)
Foci
d)
Apothem
45.
What does Kepler’s Second Law describe?
a)
Planet’s speed
b)
Planet’s orbit shape
c)
Relationship between time and area swept
d)
Planet’s mass
46.
According to Kepler’s Second Law, when does a planet move faster?
a)
When farther from the sun
b)
When closer to the sun
c)
At a constant speed
d)
When at aphelion
47.
What happens to the force acting on a planet as it gets closer to the sun?
a)
Decreases
b)
Increases
c)
Remains constant
d)
Becomes zero
48.
What is the relationship between a planet’s orbital period and its average distance from the sun according to Kepler’s Third Law?
a)
T = kR
b)
T² = kR³
c)
T³ = kR²
d)
T = kR²
49.
What is the constant value ‘k’ in Kepler’s Third Law?
a)
Variable for each planet
b)
Constant for all planets
c)
Depends on the sun’s mass
d)
Depends on the planet’s mass
50.
What is the plural form of focus?
a)
Focis
b)
Focii
c)
Focues
d)
Foci
51.
What is the term for the average distance of a planet from the sun in Kepler’s third law?
a)
Diameter
b)
Circumference
c)
Radius (R)
d)
Apothem
52.
According to the third law, if the period of a planet doubles, what happens to its distance from the sun?
a)
Doubles
b)
Quadruples
c)
Increases by a factor of 2^(2/3)
d)
Halves
53.
What happens to a planet's speed when it is farther from the sun?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Becomes erratic
54.
What does Kepler’s First Law disprove?
a)
Circular orbits
b)
Elliptical orbits
c)
Constant planetary speed
d)
Gravitational force
55.
Who discovered that gravity is universal?
a)
Aristotle
b)
Galileo
c)
Kepler
d)
Newton
56.
What force acts on planets, according to Newton?
a)
Magnetic force
b)
Electric force
c)
Force directed to the sun
d)
Frictional force
57.
What is the relationship between the force of gravity and the masses of two bodies?
a)
Inversely proportional
b)
Directly proportional
c)
No relationship
d)
Exponentially related
58.
What is the relationship between the force of gravity and the distance between two bodies?
a)
Directly proportional
b)
Inversely proportional to the square of the distance
c)
Linearly proportional
d)
No relationship
59.
What force keeps planets in their orbits?
a)
Magnetic force
b)
Electric force
c)
Gravity
d)
Frictional force
60.
What two factors create a balanced force for planets in orbit?
a)
Mass and volume
b)
Velocity and acceleration
c)
Inertia and gravity
d)
Temperature and pressure
61.
What is the formula for the Universal Law of Gravity?
a)
F = md
b)
F = Gm1m2/d
c)
F = Gm1m2/d²
d)
F = m1m2/d
62.
What does ‘G’ represent in the Universal Law of Gravity?
a)
Acceleration due to gravity
b)
Gravitational potential energy
c)
Universal Gravitational Constant
d)
Gravitational field strength
63.
What is the derived formula to find the mass of Earth (mE)?
a)
mE = gd²/G
b)
mE = gG/d²
c)
mE = Gd²/g
d)
mE = g/Gd²
64.
What is the approximate value of the Universal Gravitational Constant (G)?
a)
6.67 x 10^-9 Nm²/kg²
b)
6.67 x 10^-10 Nm²/kg²
c)
6.67 x 10^-11 Nm²/kg²
d)
6.67 x 10^-12 Nm²/kg²
65.
What is the approximate mass of Earth (mE)?
a)
5.98 x 10^22 kg
b)
5.98 x 10^23 kg
c)
5.98 x 10^24 kg
d)
5.98 x 10^25 kg
66.
What are some applications of the Universal Law of Gravity?
a)
Chemical reactions
b)
Nuclear fission
c)
Satellite orbits and tides
d)
Electromagnetic waves
67.
What is orbital speed?
a)
Speed to escape Earth
b)
Speed to maintain orbit
c)
Speed of light
d)
Speed of sound
68.
What is escape speed?
a)
Speed to maintain orbit
b)
Minimum speed to escape Earth’s gravity
c)
Average planetary speed
d)
Maximum speed of a satellite
69.
What did Aristotle believe about the motion of planets and stars?
a)
They were pulled by gravity
b)
They moved naturally
c)
They were pushed by air
d)
They were moved by water
70.
What is work in physics defined as?
a)
Energy used
b)
Force times time
c)
Force causing displacement
d)
Velocity times displacement
71.
What is the formula for work?
a)
W = Ft
b)
W = F/d
c)
W = Fd
d)
W = d/F
72.
What are the conditions for work to be done?
a)
Force, time, and velocity
b)
Force, displacement, and force parallel to motion
c)
Displacement only
d)
Force only
73.
What is the unit of work?
a)
Watt (W)
b)
Newton (N)
c)
Joule (J)
d)
Meter (m)
74.
What type of quantity is work?
a)
Vector
b)
Scalar
c)
Tensor
d)
Imaginary
75.
When is work considered positive?
a)
Force perpendicular to displacement
b)
Force opposite to displacement
c)
Force in the same direction as displacement
d)
No force applied
76.
When is work considered negative?
a)
Force parallel to displacement
b)
Force perpendicular to displacement
c)
Force opposite to displacement
d)
No displacement
77.
When is work considered zero?
a)
Force parallel to displacement
b)
Force opposite to displacement
c)
Force perpendicular to displacement
d)
Constant velocity
78.
What is the formula for work when force is at an angle to displacement?
a)
W = Fd
b)
W = Fd sinθ
c)
W = Fd cosθ
d)
W = Fd tanθ
79.
A porter pulls a 10 kg luggage along a level road for 5 m with a force of 20 N at 30°. How much work is done horizontally?
a)
50 J
b)
86.60 J
c)
100 J
d)
147 J
80.
In the previous question, if the porter lifts the luggage 1.5 m, how much work is done vertically?
a)
50 J
b)
86.60 J
c)
100 J
d)
147 J
81.
What is the relationship between force and displacement when work is done?
a)
They are perpendicular
b)
They are parallel
c)
They are at a random angle
d)
They are unrelated
82.
What does work represent in a system?
a)
Change in time
b)
Change in velocity
c)
Measurable change involving force
d)
Change in temperature
83.
What is the unit for force in the work equation?
a)
Meters (m)
b)
Joules (J)
c)
Newtons (N)
d)
Seconds (s)
84.
What is the unit for displacement in the work equation?
a)
Meters (m)
b)
Joules (J)
c)
Newtons (N)
d)
Seconds (s)
85.
What makes up the universe according to the text?
a)
Only energy
b)
Only matter
c)
Energy and matter
d)
Neither energy nor matter
86.
What is energy described as?
a)
A form of matter
b)
A mover of substance
c)
A static quantity
d)
A destructible quantity
87.
What is the Law of Conservation of Energy?
a)
Energy can be created
b)
Energy can be destroyed
c)
Energy can be created and destroyed
d)
Energy can only be transferred
88.
What is kinetic energy?
a)
Stored energy
b)
Energy of motion
c)
Energy of position
d)
Chemical energy
89.
What is potential energy?
a)
Energy of motion
b)
Stored energy
c)
Thermal energy
d)
Light energy
90.
What is mechanical energy?
a)
Chemical energy
b)
Electrical energy
c)
Energy due to position or motion
d)
Nuclear energy
91.
What is gravitational potential energy?
a)
Energy due to motion
b)
Energy due to height
c)
Energy due to chemical bonds
d)
Energy due to heat
92.
What is the formula for gravitational potential energy?
a)
KE = 1/2mv²
b)
PE = mgh
c)
E = mc²
d)
W = Fd
93.
What is the formula for kinetic energy?
a)
PE = mgh
b)
E = mc²
c)
W = Fd
d)
KE = 1/2mv²
94.
What is the Work-Energy Theorem?
a)
Energy is constant
b)
Work equals force times distance
c)
Work equals change in kinetic energy
d)
Energy is created from work
95.
What is the total mechanical energy of a system?
a)
KE - PE
b)
KE * PE
c)
KE + PE
d)
KE / PE
96.
In a conservative system, what happens when kinetic energy decreases?
a)
Potential energy decreases
b)
Potential energy increases
c)
Total energy decreases
d)
Total energy increases
97.
What is the sum of kinetic and potential energy in a conservative system?
a)
Variable
b)
Zero
c)
Constant
d)
Infinite
98.
A 50 kg box falls from a bridge 20 m below. What is its initial potential energy?
a)
4900 J
b)
9800 J
c)
14700 J
d)
19600 J
99.
In the previous question, what is the maximum kinetic energy?
a)
4900 J
b)
9800 J
c)
14700 J
d)
19600 J
100.
In the previous question, what is the potential energy at 15 m height?
a)
4900 J
b)
7350 J
c)
9800 J
d)
12250 J
101.
In the previous question, what is the kinetic energy at 15 m height?
a)
2450 J
b)
4900 J
c)
7350 J
d)
9800 J
102.
In the previous question, what is the maximum velocity?
a)
9.90 m/s
b)
14.14 m/s
c)
19.80 m/s
d)
24.25 m/s
103.
What does energy enable an object to do?
a)
Stay still
b)
Move or transform things
c)
Disappear
d)
Become heavier
104.
What is a conserved quantity?
a)
Energy that can be created
b)
Energy that can be destroyed
c)
Energy that can only be transferred
d)
Energy that can disappear
105.
What is power defined as?
a)
Force times distance
b)
Rate of doing work
c)
Energy times time
d)
Mass times acceleration
106.
What is the formula for power?
a)
P = Fd
b)
P = Wt
c)
P = KE
d)
P = mgh
107.
What are the SI units of power?
a)
Joules (J)
b)
Newtons (N)
c)
Watts (W)
d)
Meters (m)
108.
How many Watts are in one horsepower?
a)
550 W
b)
646 W
c)
746 W
d)
846 W
109.
Dan climbs stairs in 90 s, weighing 450 N, and the stairs are 10 m high. How much power does he develop?
a)
40 W
b)
50 W
c)
60 W
d)
70 W
110.
A man lifts a 20 kg bucket and does 6 kJ of work. How deep is the well?
a)
25.51 m
b)
30.61 m
c)
35.71 m
d)
40.81 m
111.
A 130 N force is applied at a 50° angle to a lawnmower pushed 15 m. What is the horizontal component of the force?
a)
73.56 N
b)
83.56 N
c)
93.56 N
d)
103.56 N
112.
In the previous question, what is the vertical component of the force?
a)
89.59 N
b)
99.59 N
c)
109.59 N
d)
119.59 N
113.
How fast must a 10 kg object move to have 250 J of kinetic energy?
a)
5.07 m/s
b)
6.07 m/s
c)
7.07 m/s
d)
8.07 m/s
114.
From what height should water from a dam fall to have 10620 J of energy if the water is 1 ton?
a)
1.08 m
b)
1.18 m
c)
1.28 m
d)
1.38 m
115.
In the previous question, what is the speed of the water at the bottom of the dam?
a)
3.61 m/s
b)
4.61 m/s
c)
5.61 m/s
d)
6.61 m/s
116.
A 400 kg object falls from 15 m to 12 m. What is its speed at 12 m?
a)
5.67 m/s
b)
6.67 m/s
c)
7.67 m/s
d)
8.67 m/s
117.
In the previous question, what is its speed at the bottom of the 15m fall?
a)
15.15 m/s
b)
16.15 m/s
c)
17.15 m/s
d)
18.15 m/s
118.
What does power measure?
a)
Total work done
b)
Total energy used
c)
Rate of energy transfer
d)
Total force applied
119.
What is the relationship between work and time in the power formula?
a)
Directly proportional to the square of time
b)
Inversely proportional to time
c)
Directly proportional to time
d)
No relationship
120.
What is momentum defined as?
a)
Force times time
b)
Mass times acceleration
c)
Mass times velocity
d)
Force times distance
121.
What is the formula for momentum?
a)
p = Ft
b)
p = ma
c)
p = mv
d)
p = Fd
122.
What is the SI unit of momentum?
a)
N/s
b)
J/s
c)
kgm/s
d)
m/s²
123.
What type of quantity is momentum?
a)
Scalar
b)
Vector
c)
Tensor
d)
Imaginary
124.
What is impulse defined as?
a)
Change in velocity
b)
Change in mass
c)
Change in momentum
d)
Change in force
125.
What is the formula for impulse?
a)
J = mv
b)
J = ma
c)
J = Ft
d)
J = Fd
126.
What does impulse change?
a)
Mass
b)
Velocity
c)
Momentum
d)
Force
127.
What does the principle of conservation of momentum state?
a)
Momentum increases over time
b)
Momentum decreases over time
c)
Total momentum remains constant
d)
Momentum changes with force
128.
What is the mathematical representation of conservation of momentum?
a)
m1v1 = m2v2
b)
m1v1 + m2v2 = 0
c)
m1v1 + m2v2 = m1v1' + m2v2'
d)
m1v1 - m2v2 = m1v1' - m2v2'
129.
What is an elastic collision?
a)
Objects stick together
b)
Objects deform
c)
Objects rebound without deformation
d)
Heat is generated
130.
What is a perfectly inelastic collision?
a)
Objects rebound
b)
Objects don't deform
c)
Objects stick together
d)
Kinetic energy is conserved
131.
In an elastic collision, what is conserved?
a)
Only momentum
b)
Only kinetic energy
c)
Both momentum and kinetic energy
d)
Neither momentum nor kinetic energy
132.
In a perfectly inelastic collision, what is conserved?
a)
Only momentum
b)
Only kinetic energy
c)
Both momentum and kinetic energy
d)
Neither momentum nor kinetic energy
133.
A 2 kg ball moving at 4 m/s collides with a 3 kg ball at rest. After the collision, the 2 kg ball moves at 1 m/s. What is the final velocity of the 3 kg ball?
a)
1 m/s
b)
2 m/s
c)
3 m/s
d)
4 m/s
134.
A 5 kg fish swims at 1 m/s and swallows a 1 kg fish at rest. What is the velocity of the larger fish after lunch?
a)
0.633 m/s
b)
0.733 m/s
c)
0.833 m/s
d)
0.933 m/s
135.
What does impulse equal?
a)
Force times distance
b)
Force times velocity
c)
Force times time
d)
Force times mass
136.
What happens to total momentum in a closed system?
a)
Increases
b)
Decreases
c)
Remains constant
d)
Becomes zero
137.
What is the relationship between impulse and change in momentum?
a)
Impulse equals change in velocity
b)
Impulse equals change in mass
c)
Impulse equals change in momentum
d)
Impulse equals change in force
138.
What is the law of conservation of momentum in words?
a)
Momentum increases over time
b)
Momentum decreases over time
c)
In the absence of external force, momentum remains unchanged
d)
Momentum changes with force
Reset
