Module 6 Flashcards
What is the equation for static equilibrium?
The sum of the forces equals zero
Is torque that causes counterclockwise motion considered a negative or positive torque?
Positive torque
Is torque that causes clockwise motion considered negative or positive torque?
Negative torque
What does the amount of torque applied to an object determine?
The amount of rotational acceleration that will occur.
What does the magnitude of force applied to an object determine?
The amount of translational motion that will occur.
What is rotational equilibrium?
The state in which the sum of the torques acting on an object is zero.
What is torque?
The tendency of a force to cause rotational acceleration.
What is a lever arm?
The length of an imaginary line drawn from the axis of rotation to the point at which the force is being applied.
What is rotational motion?
Motion around a central axis such that an object could repeatedly pass the same point in space relative to that axis.
What is translational motion?
Motion from one point to another which does not involve repeatedly passing the same point in space.
What is tension?
The force from a tight string, rope, or chain. The force is directed away from the object to which the string, rope, or chain is anchored.
What is dynamic equilibrium?
When an object moves with a constant velocity, it is said to be in dynamic equilibrium.
What is static equilibrium?
When an object is at rest, it is said to be in static equilibrium.
What is translational equilibrium?
An object is said to be in translational equilibrium when the sum of forces acting on it is equal to zero.
What is the only kind of force considered in torque?
Force that is perpendicular to the lever arm
