chp 2 mechanical equilibruim flashcardizz review

Front

What is mechanical equilibrium?

Back

Mechanical equilibrium occurs when the sum of all forces acting on an object is zero, resulting in the object being at rest or moving at a constant velocity.

Front

What does it mean for forces to be balanced?

Back

Forces are balanced when they are equal in magnitude and opposite in direction, resulting in no net force acting on an object.

Front

What is the condition for an object to be at rest?

Back

An object is at rest when the forces acting on it are balanced, meaning the upward forces equal the downward forces.

Front

What is tension in a rope?

Back

Tension is the force exerted along the length of a rope or string when it is pulled tight by forces acting from opposite ends.

Front

How does tension relate to weight when hanging by ropes?

Back

When an object hangs by ropes, the tension in each rope is equal to half the weight of the object if the ropes are vertical and the object is at rest.

Front

What is dynamic equilibrium?

Back

Dynamic equilibrium occurs when an object is moving at a constant speed in a straight line, and the forces acting on it are balanced.

Front

Can an object be in equilibrium while in motion?

Back

Yes, an object can be in equilibrium while in motion if it is moving at a constant speed in a straight line.

Front

What is the significance of the number of forces acting on an object?

Back

The number of forces acting on an object helps determine whether it is in equilibrium; if the forces are balanced, the object will not accelerate.

Front

What happens to an object in a loop-the-loop if the speed is constant?

Back

If the speed is constant during a loop-the-loop, the object is not in dynamic equilibrium due to the changing direction of the forces acting on it.

Front

What is the relationship between weight and tension in a suspended object?

Back

The tension in the ropes supporting a suspended object must equal the weight of the object for it to remain at rest.