2.4 Newton’s First Law

Cards (25)

Newton's First Law states that an object in motion will come to rest unless acted upon by an unbalanced force.
False
A larger object has less inertia than a smaller object.
False
A system at rest experiences no acceleration.
True
What is the relationship between inertia and mass?
Directly proportional
What is another name for Newton's First Law?
Law of Inertia
A system at rest is in a state of equilibrium
Match the concept with its description:
Uniform motion ↔️ Constant velocity with no net force
Equilibrium ↔️ Net force is zero
Newton's First Law ↔️ Law of Inertia
What is the first step in applying Newton's First Law to solve a problem?
Identify all forces
The inertia of an object is directly proportional to its mass
Inertia is an object's tendency to resist changes in its state of motion
Why does a system in uniform motion maintain constant velocity?
No net force
A system at rest experiences no net force. 
True
An object at rest will remain at rest unless acted upon by an unbalanced force.
True
How does inertia relate to the mass of an object?
Directly proportional
What is static equilibrium characterized by?
Zero net force and torque
A box on a table is an example of static equilibrium.
True
What is another name for Newton's First Law?
Law of Inertia
What are the two states of motion described in Newton's First Law?
Rest and uniform motion
What does it mean for a system to be at rest according to Newton's First Law?
No net force
A car moving at a constant speed on a level road is an example of a system in uniform motion.
A system in uniform motion maintains a constant velocity because there is no net force
What is the tendency of an object to resist changes in its state of motion called?
Inertia
A system at rest has no acceleration. 
True
Dynamic equilibrium occurs when an object is in uniform motion
Match the scenario with the equilibrium condition:
Box on a table ↔️ Static equilibrium
Car moving at constant speed ↔️ Dynamic equilibrium