In this well-illustrated activity, learners examine the three types of intermolecular forces: dipole-dipole forces, London or Van der Waals forces, and the hydrogen bond. Two interactive questions are included.

In this learning activity you'll explore a step-by-step process to solve simple free-body diagrams. They identify forces acting in the x or y direction in interactive exercises.

Learners use trigonometry to calculate angular input forces involving Class 2 mechanical levers.

In this interactive object, students use the Law of Sines to calculate forces.

Learners apply the Law of Cosines to determine forces using a TI-36X calculator in this animated object.

In this animated and interactive object, the learner uses a TI-86 calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.

The learner calculates the resultant of multiple forces acting in a concurrent, coplanar load condition.

In this animated and interactive object, the learner uses a Casio fx-260 calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

In this interactive object, learners use the Law of Cosines to calculate forces.

In this interactive and animated object, learners apply the Law of Sines to determine forces using a TI-86 calculator.

In this animated object, learners use a TI-36X calculator to determine forces.

In this interactive and animated object, learners apply the Law of Cosines to determine forces using a TI-86 calculator.

In this animated and interactive object, the learner uses a TI-36X calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

In this interactive object, learners use the Pythagorean Theorem to calculate forces.