MOS CH 1

The application of mechanics principles to engineering problems.

Study of bodies at rest under forces.

Study of bodies in motion under forces.

Study of motion and forces causing it.

Study of motion without considering forces.

Study of bodies that don't deform under forces.

Resistance to change in motion.

Amount of matter in a body.

The tendency of an object to resist changes in its state of motion.

A quantitative measure of inertia. Heavier objects have more inertia.

A state where an object's position does not change relative to a reference point over time.

A state where an object's position changes relative to a reference point over time.

An idealized object with negligible size and mass, used for simplified calculations.

An idealized object where the distances between particles remain constant after forces are applied.

An object whose shape and size change when external forces are applied.

An idealized object modeled by assuming matter as completely continuous, homogenous, and without voids.

A measure of the quantity of motion of an object, calculated by multiplying its mass by its velocity.

A measure of the rotational force acting on a body.

A measure of how much mass is contained in a given volume.

A pair of equal, opposite, and parallel forces that produce pure rotation.

The tendency of a force to cause rotation about a specific point.

A quantity that is completely described by its magnitude only. It has no direction.

A quantity that is described by both magnitude and direction.

An agent that tends to change the motion of an object.

Forces whose lines of action do not lie on the same plane, but intersect at a single point.

Forces acting in space that meet at a single point.

Forces in 3D space that do not lie on the same plane and do NOT meet at a point.

Forces acting in the same direction, with parallel lines of action.

Forces acting in opposite directions, with parallel lines of action.

Each force in a system produces its own effect as if the other forces were not present.

Adding or removing equal, opposite, and collinear forces doesn't change the system's effect on the body.

A force can be moved along its line of action without changing the effect on a rigid body.

A diagram representing forces' magnitude and direction to find the resultant force in a coplanar concurrent system.

A system for labeling forces in a space diagram with letters on either side of the force representation.

If three coplanar forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two.

The turning effect of a force, calculated as the product of the force and the perpendicular distance from the force's line of action to the point.

Two equal, opposite, and parallel forces that produce only rotation, no translation.

The perpendicular distance between the lines of action of the two forces in a couple.

A couple that rotates a body in a clockwise direction.

A couple that rotates a body in an anticlockwise direction.

If two forces are represented by adjacent sides of a parallelogram, their resultant is represented by the diagonal passing through their intersection.

A force can be moved along its line of action without changing its effect on a rigid body.

Adding/removing equal, opposite, and collinear forces does not change the body's motion.

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

For every action, there is an equal and opposite reaction.

Two masses attract each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The force of gravity acting on an object.