Torque Flashcard

Front

What is torque?

Back

Torque is a measure of the rotational force applied to an object, calculated as the product of the force and the distance from the pivot point (fulcrum) to the point of force application.

Front

What is the formula for torque?

Back

The formula for torque (τ) is given by: τ = r × F × sin(θ), where r is the distance from the pivot point, F is the force applied, and θ is the angle between the force vector and the lever arm.

Front

What is the condition for equilibrium in rotational motion?

Back

An object is in rotational equilibrium when the sum of all torques acting on it is zero, meaning that the clockwise torques equal the counterclockwise torques.

Front

How does the position of a force affect torque?

Back

The torque produced by a force increases with the distance from the pivot point; a force applied further from the pivot generates a greater torque.

Front

What is angular acceleration?

Back

Angular acceleration (α) is the rate of change of angular velocity over time, typically measured in radians per second squared (rad/s²).

Front

What is the relationship between linear acceleration and angular acceleration?

Back

The relationship is given by the equation: a = αR, where a is the linear acceleration, α is the angular acceleration, and R is the radius of the circular path.

Front

What is the unit of angular speed?

Back

The unit of angular speed is radians per second (rad/s).

Front

How do you convert revolutions per minute (RPM) to radians per second?

Back

To convert RPM to rad/s, use the formula: rad/s = RPM × (2π/60).

Front

What is the significance of the slope of an angular velocity vs. time graph?

Back

The slope of an angular velocity vs. time graph represents the angular acceleration of the object.

Front

What is the moment of inertia?

Back

The moment of inertia (I) is a measure of an object's resistance to changes in its rotational motion, depending on the mass distribution relative to the axis of rotation.