International Adaptation, 12th Edition Halliday text. Each chapter is represented
by three carefully chosen questions along with a brief rationale explaining the
learning objective behind each question. (Due to the breadth of the text, the
chapter titles and focus areas have been aligned with a commonly used table of
contents for the International Adaptation. If your edition differs or you need
adjustments, please let me know.)
Chapter 1: Units, Physical Quantities, and Vectors
1. Question: A car travels 5.0 km with an uncertainty of ±0.1 km. Convert this distance into meters
and state the uncertainty in meters.
Rationale: Tests your ability to convert units and propagate uncertainties.
2. Question: Given two displacement vectors, A = (3.0 m, 4.0 m) and B = (5.0 m, –2.0 m), calculate
the resultant vector by adding A and B.
Rationale: Reinforces vector addition in two dimensions.
3. Question: Determine the magnitude and direction (angle with respect to the positive x-axis) of
the vector V⃗=(−3.0 i+4.0 j)\vec{V} = (-3.0\,\mathbf{i} + 4.0\,\mathbf{j})V=(−3.0i+4.0j).
Rationale: Applies the Pythagorean theorem and trigonometry for vector resolution.
Chapter 2: Motion in One Dimension
1. Question: A particle moves along a straight line with constant acceleration. If its initial velocity is
2.0 m/s and acceleration is 3.0 m/s², what is its velocity after 4.0 s?
Rationale: Uses the basic kinematics formula for constant acceleration.
2. Question: An object falls freely under gravity (ignore air resistance). If dropped from rest,
calculate the distance fallen in 3.0 s.
Rationale: Reinforces free‐fall motion and the use of s=12gt2s = \frac{1}{2}gt^2s=21gt2.
3. Question: Explain the difference between displacement and distance traveled using an example
of a particle moving back and forth along a line.
Rationale: Conceptual question to ensure understanding of scalar versus vector quantities.
Chapter 3: Motion in Two Dimensions
1. Question: A projectile is launched at 20 m/s at an angle of 30° above the horizontal. Determine
its horizontal and vertical components of the initial velocity.
Rationale: Tests the decomposition of a vector into its components.
, 2. Question: Calculate the maximum height reached by the projectile in Question 1 (assume
g=9.8 m/s2g = 9.8\,\text{m/s}^2g=9.8m/s2).
Rationale: Applies vertical motion equations for projectile motion.
3. Question: Determine the range of the projectile from Question 1 assuming it lands at the same
vertical level as launch.
Rationale: Integrates concepts of time of flight and horizontal displacement.
Chapter 4: Force and Motion – Newton’s Laws
1. Question: A 10.0-kg object is pulled by a net force of 40.0 N. Calculate its acceleration.
Rationale: Direct application of Newton’s second law, F=maF = maF=ma.
2. Question: Describe how Newton’s third law applies when a person pushes against a wall.
Rationale: Tests conceptual understanding of action–reaction forces.
3. Question: An object is subject to forces of 12 N east, 9 N north, and 5 N west. Determine the net
force vector.
Rationale: Practices vector addition of forces in different directions.
Chapter 5: Work, Energy, and Power
1. Question: Define work and calculate the work done by a 50.0-N force moving an object 8.0 m
along the direction of the force.
Rationale: Introduces the work formula W=FdW = FdW=Fd.
2. Question: An object’s kinetic energy is 200 J. If its mass is 5.0 kg, find its speed.
Rationale: Applies the kinetic energy formula KE=12mv2KE = \frac{1}{2}mv^2KE=21mv2.
3. Question: Explain the concept of power and determine the power output when 500 J of work is
done in 10 s.
Rationale: Connects work and time through the definition of power, P=WtP = \frac{W}{t}P=tW.
Chapter 6: Momentum, Impulse, and Collisions
1. Question: A 2.0-kg ball traveling at 6.0 m/s collides with a wall and rebounds with 4.0 m/s in the
opposite direction. Compute the impulse on the ball.
Rationale: Tests the concept of momentum change and impulse.
2. Question: Explain the law of conservation of momentum using an example of an elastic collision
between two objects.
Rationale: Assesses conceptual understanding of momentum conservation.
, 3. Question: Two ice skaters push off each other. If one skater of mass 50 kg moves away at 2.0
m/s, what is the recoil speed of the 70-kg skater?
Rationale: Applies conservation of momentum in two-body systems.
Chapter 7: Rotation
1. Question: Calculate the angular velocity in rad/s of a wheel that makes 120 revolutions per
minute.
Rationale: Converts between revolutions per minute and radians per second.
2. Question: Given a solid disk of mass 10.0 kg and radius 0.5 m, determine its moment of inertia
about its center.
Rationale: Uses the standard formula for a disk, I=12MR2I = \frac{1}{2}MR^2I=21MR2.
3. Question: Explain the relation between torque and angular acceleration, and provide an
example.
Rationale: Reinforces Newton’s second law for rotation, τ=Iα\tau = I\alphaτ=Iα.
Chapter 8: Gravitation
1. Question: Using Newton’s law of universal gravitation, calculate the force between two 1000-kg
masses separated by 2.0 m.
Rationale: Direct application of F=Gm1m2r2F = G\frac{m_1m_2}{r^2}F=Gr2m1m2.
2. Question: Describe how gravitational potential energy is defined for an object near Earth’s
surface.
Rationale: Connects work done against gravity to potential energy.
3. Question: Explain why gravitational force is considered a “central force.”
Rationale: Tests understanding of the directionality and nature of the gravitational force.
Chapter 9: Oscillations and Simple Harmonic Motion
1. Question: Derive the period of a simple pendulum for small oscillations and calculate it for a
1.0-m long pendulum.
Rationale: Applies the formula T=2πLgT = 2\pi\sqrt{\frac{L}{g}}T=2πgL.
2. Question: A mass-spring system oscillates with a period of 2.0 s. If the mass is 0.5 kg, what is the
spring constant?
Rationale: Uses T=2πmkT = 2\pi\sqrt{\frac{m}{k}}T=2πkm to relate mass, spring constant, and
period.
3. Question: Explain the energy exchange between kinetic and potential energy in a simple
harmonic oscillator.
Rationale: Conceptual review of energy conservation in SHM.