Complete Question Bank with Full Solution Set
INTRODUCTION
Welcome to this comprehensive PHY 111 Final Exam Practice Evaluation for 2026. This
document has been carefully designed to help students prepare for their introductory
physics final examination through rigorous practice and detailed concept reinforcement.
What This Document Covers:
This question bank spans the complete range of topics typically covered in a first-
semester introductory physics course (PHY 111 / PHYS 111), including kinematics,
Newton's laws, work and energy, momentum and collisions, rotational motion,
oscillations, waves, fluid mechanics, and thermodynamics.
Who It Is For:
• Undergraduate students completing PHY 111 or equivalent introductory physics
courses
• Students preparing for final examinations in mechanics and particle dynamics
• Self-learners seeking structured physics practice with detailed solutions
• Anyone needing to reinforce problem-solving skills in classical physics
How To Use This Question Bank:
1. Work through questions section by section for targeted review
2. Use questions to identify weak areas requiring additional study
3. Practice with the numerical problems to build computational confidence
4. Review rationales carefully—they teach the underlying physics principles
, 5. Use the answer key for self-assessment and progress tracking
Major Topics Included:
• Units, Measurements & Significant Figures
• Kinematics in One and Two Dimensions
• Projectile Motion
• Newton's Laws of Motion and Applications
• Work, Energy & Power
• Momentum and Collisions
• Rotational Motion and Dynamics
• Gravitation
• Oscillations and Simple Harmonic Motion
• Mechanical Waves and Sound
• Fluid Mechanics
LEARNING OBJECTIVES
After completing this practice evaluation, students should be able to:
1. Apply kinematic equations to solve problems involving uniform acceleration in
one and two dimensions
2. Analyze projectile motion using vector components and kinematic principles
3. Apply Newton's Laws to solve force problems involving equilibrium and
accelerated motion
4. Solve work-energy problems, including situations with conservative and non-
conservative forces
5. Apply conservation of momentum to analyze collisions in one and two
dimensions
, 6. Analyze rotational motion, including torque, angular acceleration, and moment
of inertia
7. Apply universal gravitation principles to orbital and planetary problems
8. Solve simple harmonic motion problems, including pendulums and spring-
mass systems
9. Apply principles of wave motion to problems involving frequency, wavelength,
and speed
10. Apply fluid mechanics principles to pressure, buoyancy, and fluid flow problems
SECTION 1: UNITS, MEASUREMENTS & SCIENTIFIC
METHODS
Practice Questions
Question 1
A laboratory scale reports a mass of 0.005670 kg. Express this value with the correct
number of significant figures in grams.
A) 5.67 g
B) 5.670 g
C) 56.70 g
D) 5670 g
Correct Answer: B
Rationale: Converting kilograms to grams requires multiplying by 1000, giving 5.670 g.
The original measurement contains four significant figures (5, 6, 7, and the trailing zero
after the decimal), which must be preserved. Option A loses one significant figure, while
, C and D result from incorrect conversions (C would be correct if the value were 0.05670
kg, D if it were 5.670 kg) .
Question 2
An experiment records the length of a metal rod as 12.45 ± 0.02 cm. What does the
uncertainty indicate?
A) The rod changes length by 0.02 cm every measurement
B) The actual value is expected to lie within 12.43–12.47 cm
C) The measuring instrument is defective
D) The measurement is exact
Correct Answer: B
Rationale: Experimental uncertainty estimates the interval in which the true value is
likely to lie. A measurement of 12.45 ± 0.02 cm means the actual value is expected to be
between 12.43 cm and 12.47 cm. It does not imply the object changes length or that the
instrument is faulty; no physical measurement is perfectly exact .
Question 3
Which SI base unit corresponds to electric current?
A) Volt
B) Ohm
C) Ampere
D) Coulomb