Conceptual Physics Sem 1 Final Exam Study Guide

Front

What did Galileo argue about the need for force to keep an object in motion?

Back

Galileo argued that a force is not needed to keep an object in motion; instead, objects continue moving unless acted upon by an external force.

Front

What does it mean for an object to be in dynamic equilibrium?

Back

An object is in dynamic equilibrium when it is moving with constant velocity, meaning there is no net force acting on it.

Front

According to Aristotle, how is motion described?

Back

Aristotle described motion as requiring an external force to occur.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object in motion will remain in motion unless acted upon by a nonzero net force.

Front

What can be inferred about the forces acting on an object moving at constant speed on a frictionless surface?

Back

The net force acting on the object is zero.

Front

Define inertia in the context of motion.

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the difference between static and dynamic equilibrium?

Back

Static equilibrium refers to an object at rest with no net forces acting on it, while dynamic equilibrium refers to an object moving at constant velocity with no net forces acting on it.

Front

How does friction affect motion?

Back

Friction opposes the motion of objects, causing them to slow down or stop.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will resist changes in its motion more than a lighter object.

Front

What is a net force?

Back

Net force is the vector sum of all forces acting on an object, determining its acceleration.