Unit 1: Introduction to
Physics 2026 | Study
Guide, Practice Questions,
Answers, Rationales &
Exam Review | Complete
Ethics Study Guide
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Science The use of knowledge in a organized and classified manner.
Natural Science The study of the universe and its contents.
Velocity Speed
Rate of change of position of an object over time
Inertia Property of matter that resists its change in motion.
Tendency of a resting body to remain at rest and the tendency of a body moving at
a constant speed in a straight line to continue its states of motion.
Force Push or pull of an object.
Newton (N) is the SI unit of force.
Mass Quantity of matter.
Measure of Inertia.
Physical Science The study of nonliving matter
Physics The branch of physcical science that studies matter and energy and their
relationships.
Biological Science The study of living matter
Scientific Method Comprises the systematic collection of facts, the study of their interrelationships,
and the drawing of valid conclusions from the resulting data.
Law of Inertia (1st Law) A body will remain at rest or if in motion will continue moving at a constant velocity
in a straight line unless acted upon by an external force
Law of Force (2nd Law) The force acting on a body is proportional to its mass times acceleration; the
direction of the force is the same as that of the body's acceleration.
Physics 2026 | Study
Guide, Practice Questions,
Answers, Rationales &
Exam Review | Complete
Ethics Study Guide
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Science The use of knowledge in a organized and classified manner.
Natural Science The study of the universe and its contents.
Velocity Speed
Rate of change of position of an object over time
Inertia Property of matter that resists its change in motion.
Tendency of a resting body to remain at rest and the tendency of a body moving at
a constant speed in a straight line to continue its states of motion.
Force Push or pull of an object.
Newton (N) is the SI unit of force.
Mass Quantity of matter.
Measure of Inertia.
Physical Science The study of nonliving matter
Physics The branch of physcical science that studies matter and energy and their
relationships.
Biological Science The study of living matter
Scientific Method Comprises the systematic collection of facts, the study of their interrelationships,
and the drawing of valid conclusions from the resulting data.
Law of Inertia (1st Law) A body will remain at rest or if in motion will continue moving at a constant velocity
in a straight line unless acted upon by an external force
Law of Force (2nd Law) The force acting on a body is proportional to its mass times acceleration; the
direction of the force is the same as that of the body's acceleration.
