Difference between revisions of "Car"
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| + | ==Key Stage 2== | ||
| + | ===Meaning=== | ||
| + | A [[car]] is something with 4 [[wheel]]s and an [[engine]] that people can drive from one place to another. | ||
| + | |||
| + | ===About Cars=== | ||
| + | : [[Car]]s can move faster than [[human]]s can run. | ||
| + | : A [[car]] has a [[Speedometer]] which [[measure]]s the [[speed]] of the [[car]]. | ||
| + | |||
==Key Stage 3== | ==Key Stage 3== | ||
| + | ===Meaning=== | ||
| + | A [[car]] is a 4 [[wheel]]ed [[vehicle]] used to transport people between two locations. | ||
| + | |||
| + | ===About Cars=== | ||
| + | : [[Car]]s get their [[energy]] from the [[combustion]] of a [[fuel]] or from a [[battery]]. Both of which are [[Energy Store|stores]] of [[Chemical Potential Energy Store|chemical potential energy]]. | ||
===Energy Transfers=== | ===Energy Transfers=== | ||
====Accelerating==== | ====Accelerating==== | ||
| − | : When a '''car''' [[accelerate]]s [[energy]] is [[Energy Transfer|transferred]] usefully from the [[Chemical Potential Energy Store|chemical potential energy store]] of the [[fuel]] to the [[Kinetic Energy Store|kinetic energy store]] of the car. However, [[energy]] is [[Wasted Energy|wasted]] when it is [[Energy Transfer|transferred]] from the [[Chemical Potential Energy Store|chemical potential energy store]] of the [[fuel]] to the [[Thermal Energy Store|thermal energy store]] of the [[engine]]. | + | : When a '''car''' [[accelerate]]s [[energy]] is [[Energy Transfer|transferred]] usefully from the [[Chemical Potential Energy Store|chemical potential energy store]] of the [[fuel]]/[[battery]] to the [[Kinetic Energy Store|kinetic energy store]] of the car. However, [[energy]] is [[Wasted Energy|wasted]] when it is [[Energy Transfer|transferred]] from the [[Chemical Potential Energy Store|chemical potential energy store]] of the [[fuel]] to the [[Thermal Energy Store|thermal energy store]] of the [[engine]]. |
====Decelerating==== | ====Decelerating==== | ||
Revision as of 13:17, 2 February 2019
Contents
Key Stage 2
Meaning
A car is something with 4 wheels and an engine that people can drive from one place to another.
About Cars
- Cars can move faster than humans can run.
- A car has a Speedometer which measures the speed of the car.
Key Stage 3
Meaning
A car is a 4 wheeled vehicle used to transport people between two locations.
About Cars
- Cars get their energy from the combustion of a fuel or from a battery. Both of which are stores of chemical potential energy.
Energy Transfers
Accelerating
- When a car accelerates energy is transferred usefully from the chemical potential energy store of the fuel/battery to the kinetic energy store of the car. However, energy is wasted when it is transferred from the chemical potential energy store of the fuel to the thermal energy store of the engine.
Decelerating
- When a car decelerates energy is transferred from the kinetic energy store of the car to the thermal energy store of the brakes.
Forces
Accelerating
- When a car accelerates the engine provides a driving force causing a mechanical energy transfer.
Decelerating
- When a car decelerates the brakes provide a force causing a mechanical energy transfer.