Understand that the change in motion of an object is proportional to the applied force and inversely proportional to the mass and be able to use this to predict outcomes of new situations.

Be give examples of action and reaction pairs in a situation.

Understand that sustained motion does not require sustained force.

Students have trouble understanding that it takes force to CHANGE the motion of an object, thinking instead that sustained force is necessary for sustained motion.

Limitations in the ability to describe motion often leaves students thinking only in terms of motion or no motion.

Intertia and the action-reaction principle is counterintuitive.

Students may be able to recite Newton's 3 law's without actually understanding them.

Give students the vocabulary to be able to divide motion up into the categories of constant and accelerated motion.

Provide students with opportunities to experience different types of motion and to describe it by building such things as alka-seltzer rockets.

Discuss Newton's law's in relation to space travel and the movement of heavenly bodies.