Lesson Plan: 1P.1.04

Learning About
What happens when two forces interact?

Keywords:

Force (4)
Tension (2)
Stretch: A form of deformation where the particles become more spread out. (1)
Compression: Where two or more forces act on an object in opposite directions causing a decrease in the distance between particles. (1)
Deform (1)
Spring: Typically a coil of a material which is able to store a high amount of elastic potential energy. (1)
Deform: The changing of shape of an object. (1)
Reaction force: The force a compressed solid pushes back with. (1)
Unbalanced (1)

Memory Anchor:

Method	Precise Learning Objective	Question / Activity (Designed for maximum working out)
W	When an object applies a force to a second object, the second object applies and force equal in size but opposite in direction back.	In what direction does a reaction force work and what size is this force?
T	The force an object applies back is called the Reaction force.	What is a the name of the force a solid object applies back, when acted upon by another force?
T	Unbalanced forces can also change the shape of an object: deformation.	What is deformation?
T	When solid objects are stretched there is a force of tension created with in it.	How is the force of tension created?
W	A spring will deform (stretch or compress) until the tension balances the load placed upon it.	When will a spring stop deforming? Student use Newton Meters to weigh objects in the room
W	When an object floats there is a force of upthrust.	Look at the Hamble science logo - What forces are acting on the boat?
W	When an a fluid flows over a wing (aerofoil) it generates lift.	Look at the Hamble science logo - What forces are acting on the boat?

Links To the Big Ideas
Forces	Particles	Energy	Cells