- identify and distinguish between contact forces (e.g. friction, air resistance, tension and normal force) and non-contact forces (e.g. gravitational, electrostatic and magnetic forces)
- state that mass is a measure of the amount of matter in a body
- state that a gravitational field is a region in which a mass experiences a force due to gravitational attraction
- define gravitational field strength, g, as gravitational force per unit mass placed at that point
- recall and apply the relationship weight = mass × gravitational field strength to new situations or to solve related problems
- distinguish between mass and weight
- apply Newton’s Laws to:
- describe the effect of balanced and unbalanced forces on a body
- describe the ways in which a force may change the motion of a body
- identify action-reaction pairs acting on two interacting bodies
- identify forces acting on a body and draw free body diagram(s) representing the forces acting on the body (for cases involving forces acting in at most two dimensions)
- solve problems for a static point mass under the action of three forces for two-dimensional cases by a graphical method
- recall and apply the relationship resultant force = mass × acceleration to new situations or to solve related problems
- show an understanding that mass is the property that resists change in motion of the body (inertia)
- explain the effects of friction on the motion of a body
- describe the motion of bodies with constant mass falling in uniform gravitational field with or without air resistance, including reference to terminal velocity.