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  1. AP Physics C Mechanics
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What are the differences between balanced and unbalanced forces?

Balanced forces: Sum to zero, maintain translational equilibrium, no change in velocity. | Unbalanced forces: Result in a non-zero net force, cause acceleration.

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What are the differences between balanced and unbalanced forces?

Balanced forces: Sum to zero, maintain translational equilibrium, no change in velocity. | Unbalanced forces: Result in a non-zero net force, cause acceleration.

What are the differences between static and dynamic equilibrium?

Static equilibrium: Object is at rest, net force is zero. | Dynamic equilibrium: Object is moving at constant velocity, net force is zero.

What are the differences between inertial and non-inertial reference frames?

Inertial reference frame: Newton's first law holds true, non-accelerating. | Non-inertial reference frame: Accelerating, Newton's first law may not directly apply (fictitious forces may be needed).

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).

Define Newton's First Law.

An object maintains its state of motion unless acted upon by a net external force.

What is inertia?

The tendency of an object to resist changes in its state of motion.

Define translational equilibrium.

A state where the net force on an object is zero, resulting in constant velocity.

What is an inertial reference frame?

A reference frame in which Newton's First Law holds true; an object with no net force maintains constant velocity.

What is net force?

The vector sum of all forces acting on an object.