5470 Forces in Equilibrium

Front

What is equilibrium in physics?

Back

Equilibrium is a state where 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 in motion at constant velocity).

Front

What does a free body diagram represent?

Back

A free body diagram illustrates all the forces acting on an object, helping to analyze the object's motion.

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

How does weight differ from mass?

Back

Weight is the force of gravity acting on an object, while mass is the amount of matter in an object, which remains constant regardless of location.

Front

What is the relationship between tension and friction when an object moves at constant velocity?

Back

When an object moves at constant velocity, the tension force is equal to the force of friction.

Front

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

Back

An object is in static equilibrium when 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 is moving at a constant speed in a straight line, with no net force acting on it.

Front

What happens to an object's weight on the Moon compared to Earth?

Back

An object's weight is less on the Moon due to lower gravitational acceleration, but its mass remains the same.

Front

What is the significance of the net force being zero?

Back

A net force of zero indicates that an object will not accelerate, meaning it is either at rest or moving at a constant velocity.