All Flashcards
What is the effect of zero net force on an object?
The object maintains a constant velocity (either at rest or moving at a constant speed in a straight line).
What is the effect of unbalanced forces on an object?
The object accelerates (changes its velocity).
What happens when an object's mass increases?
Its inertia increases, making it harder to change its state of motion.
What happens if the reference frame is accelerating?
Newton's First Law does not directly apply; fictitious forces may be needed to explain motion.
What is the effect of a net force acting on an object?
The object accelerates in the direction of the net force.
What happens if the net force on an object is zero?
The object maintains its state of motion (either at rest or moving at a constant velocity).
What is the effect of balanced forces on an object?
The object's velocity remains constant; it is in translational equilibrium.
What is the effect of unbalanced forces on an object?
The object accelerates in the direction of the net force.
Differentiate between balanced and unbalanced forces.
Balanced forces: Net force is zero, no change in velocity. Unbalanced forces: Non-zero net force, causes acceleration.
What is the difference between inertial and non-inertial reference frames?
Inertial frames: Newton's First Law holds. Non-inertial frames: Accelerating or rotating, require fictitious forces.
Compare equilibrium and 'no motion'.
Equilibrium: Constant velocity (can be zero). 'No motion': Object is at rest (zero velocity).