CHP 11 ROTATIONAL EQUILIBRIUM TEST

Front

What is the center of gravity?

Back

The center of gravity is the point at which the weight of an object is evenly distributed in all directions. It does not always coincide with a physical point in the object.

Front

What is neutral equilibrium?

Back

Neutral equilibrium occurs when an object is balanced such that any displacement neither raises nor lowers its center of gravity.

Front

What happens if an object's center of gravity is not over its area of support?

Back

The object will fall over.

Front

Define torque.

Back

Torque is defined as the product of force and the distance from the pivot point (lever arm) at which the force is applied.

Front

Where is the center of gravity located in a donut?

Back

In a donut, the center of gravity is located at a point where there is no mass, specifically in the hole of the donut.

Front

What is the relationship between center of gravity and stability?

Back

An object is more stable when its center of gravity is low and directly over its base of support.

Front

What factors affect the center of gravity of an object?

Back

The shape, mass distribution, and orientation of the object affect its center of gravity.

Front

How does the height of the center of gravity influence an object's stability?

Back

A higher center of gravity makes an object less stable, while a lower center of gravity increases stability.

Front

What is the formula for calculating torque?

Back

Torque (τ) = Force (F) × Lever Arm Distance (r) where the angle between the force and lever arm is considered.

Front

What is the significance of the lever arm in torque?

Back

The lever arm is the perpendicular distance from the pivot point to the line of action of the force, and it determines the effectiveness of the force in producing rotation.