Lesson Plan: 1P.4.10

Hamble Lesson Observation Plan
Learning About
Why do cars have a top speed?
Keywords:
  • Thrust: A force from an engine. (1)
  • Constant speed: An object which is neither accelerating or decelerating. This object may be stationary. (1)
  • Acceleration (1)
  • Drag (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
W Cars have a top speed because: - As they get faster they hit more air particles (harder) - When the car hits the particles the particles hit the car causing drag - The thrust from the engine force is constant - When the drag balances the engine force there is no resultant force - So no acceleration - So car travels at a constant (top) speed Why do cars have a top speed?

DEMO: Toy car to prompt students to think about its shape and drag CLASS: Students each have a measuring cylinder and time how long it takes different shapes to fall through wall paper paste
W Engines and motors produce a force called Thrust. What is the name of the force produced by an engine or motor?
Links To the Big Ideas
ForcesParticlesEnergyCells