Difference between revisions of "Car"
| Line 5: | Line 5: | ||
===About Cars=== | ===About Cars=== | ||
: [[Car]]s can move faster than [[human]]s can run. | : [[Car]]s can move faster than [[human]]s can run. | ||
| − | : A [[car]] has a | + | : A [[car]] has a speedometer which [[measure]]s the [[speed]] of the [[car]]. |
==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | A [[car]] is a 4 wheeled | + | A [[car]] is a 4 wheeled vehicle used to transport people between two locations. |
===About Cars=== | ===About Cars=== | ||
| Line 16: | Line 16: | ||
===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]]/[[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 | + | : 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==== | ||
| Line 23: | Line 23: | ||
===Forces=== | ===Forces=== | ||
====Accelerating==== | ====Accelerating==== | ||
| − | : When a '''car''' [[accelerate]]s the | + | : When a '''car''' [[accelerate]]s the engine provides a [[Driving Force|driving force]] causing a [[Mechanical Energy Transfer|mechanical energy transfer]]. |
====Decelerating==== | ====Decelerating==== | ||
: When a '''car''' [[decelerate]]s the brakes provide a [[force]] causing a [[Mechanical Energy Transfer|mechanical energy transfer]]. | : When a '''car''' [[decelerate]]s the brakes provide a [[force]] causing a [[Mechanical Energy Transfer|mechanical energy transfer]]. | ||
Revision as of 14:15, 3 April 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.