Chapter 4: Revision

If object A exerts a force on object B then object B exerts an equal but opposite force on object A.

The acceleration of an object is equal to the net force acting on the object divided by the mass of the object.

An object continues to move with uniform velocity unless an external force acts upon it.

The square of an object’s Force is proportional to the cube of the object’s acceleration

A specific name for the force that an object, like your bed, exerts

A specific name for the force that a car exerts

A specific name for the force that a string or a rope exerts

A skydiver when they start to jump from a plane.

A skydiver when they reach a constant velocity.

the perpendicular contact force that a surface exerts on another surface.

the parallel contact force that a surface exerts on another surface

the net contact force that a surface exerts on another surface.

always equal to the weight of an object.

145.8 N

90 N

50 N

490 N