Difference between revisions of "Gravity"
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===Meaning=== | ===Meaning=== | ||
A [[force]] that causes all [[Object|objects]] with [[mass]] to be [[Attract|attracted]] to each other. | A [[force]] that causes all [[Object|objects]] with [[mass]] to be [[Attract|attracted]] to each other. | ||
+ | |||
+ | ===Falling=== | ||
+ | ==Key Stage 3== | ||
+ | |||
+ | ===Energy Transfers=== | ||
+ | ====Accelerating==== | ||
+ | : When an [[object]] [[accelerate]]s towards the ground [[energy]] is [[Energy Transfer|transferred]] from the [[Gravitational Potential Energy Store|gravitational potential energy store]] of the [[object]] to the [[Kinetic Energy Store|kinetic energy store]] of the [[object]]. | ||
+ | |||
+ | ====Decelerating==== | ||
+ | : When an [[object]] [[decelerate]]s away from the ground [[energy]] is [[Energy Transfer|transferred]] from the [[Kinetic Energy Store|kinetic energy store]] of the [[object]] to the [[Gravitational Potential Energy Store|gravitational potential energy store]] of the [[object]]. | ||
+ | |||
+ | ===Forces=== | ||
+ | ====Accelerating==== | ||
+ | : When an [[object]] [[accelerate]]s towards the ground '''gravity''' is causing a [[Mechanical Energy Transfer|mechanical energy transfer]]. | ||
+ | |||
+ | ====Decelerating==== | ||
+ | : When an [[object]] [[decelerate]]s away from the ground '''gravity''' is causing a [[Mechanical Energy Transfer|mechanical energy transfer]]. |
Revision as of 17:10, 11 October 2018
Contents
Key Stage 2
Meaning
Gravity is a force that causes all objects to be attracted to each other.
About Gravity
- Gravity is a non-contact force.
- Gravity affects all objects.
- Gravity pulls us down towards the centre of the Earth.
If person A drops the cog it will fall towards the centre of the Earth. If person B drops the spanner it will fall towards the centre of the Earth. |
The planets are pulled towards the sun by gravity. |
Key Stage 3
Meaning
A force that causes all objects with mass to be attracted to each other.
Falling
Key Stage 3
Energy Transfers
Accelerating
- When an object accelerates towards the ground energy is transferred from the gravitational potential energy store of the object to the kinetic energy store of the object.
Decelerating
- When an object decelerates away from the ground energy is transferred from the kinetic energy store of the object to the gravitational potential energy store of the object.
Forces
Accelerating
- When an object accelerates towards the ground gravity is causing a mechanical energy transfer.
Decelerating
- When an object decelerates away from the ground gravity is causing a mechanical energy transfer.