5470 Forces in Equilibrium

Front

What is the definition of equilibrium in physics?

Back

Equilibrium is a state in which the net force acting on an object is zero, resulting in no acceleration.

Front

What are the two types of equilibrium?

Back

Static equilibrium (object at rest) and dynamic equilibrium (object moving at constant velocity).

Front

What does it mean for forces to be balanced?

Back

Balanced forces occur when two or more forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

What is the significance of a free-body diagram?

Back

A free-body diagram visually represents all the forces acting on an object, helping to analyze the net force and equilibrium.

Front

How can you determine if an object is in static equilibrium?

Back

An object is in static equilibrium if it is at rest and the sum of all forces and torques acting on it is zero.

Front

What is dynamic equilibrium?

Back

Dynamic equilibrium occurs when an object moves at a constant velocity, meaning the net force acting on it is zero.

Front

What is the relationship between tension and friction in equilibrium?

Back

In equilibrium, the tension force in a rope or cable is equal to the friction force opposing the motion.

Front

What does a horizontal line on a position vs. time graph indicate?

Back

A horizontal line indicates that the object is at rest, meaning it is in static equilibrium.

Front

What does a slope of zero on a position vs. time graph indicate?

Back

A slope of zero indicates that the object is not changing its position over time, indicating static equilibrium.

Front

What is the formula for calculating net force?

Back

Net force (F_net) = Sum of all forces acting on an object.