What happens when an Object falls, in terms of Work Done? | -As the Object is falling, work is Done on the Object by the Force, from Gravity
-This is literally Weight [Mass x GFS] |
If an Object is Thrown Upwards, what happens with its Kinetic Energy Store, and Gravitational Energy Store? | -So the Work Done by the Force allows it to get Height, and the Energy will be Transferred to the Gravitational Potential Energy Store |
Give the Formula for:
-Kinetic Energy
-Gravitational Energy | -Kinetic Energy = 0.5 x mass x (speed)²
-Gravitational Energy = Mass x Height x GFS |
What happens if an Elastic Object is Squashed via a Moving Object? | -Work is Done [Energy is Transferred] against the Spring, meaning the Objects Kinetic Energy Store to the Elastic Potential Energy Store of the Object |
Give the Formula for Energy Transferred to the Elastic Potential Energy of a Stretched / Squashed Spring? | 0.5 x Spring Constant x (Extension)² |
What happens in a Device that is Plugged in a Socket? | -Its simply Connected to the National Grid, so Energy is Transferred Electrically to the Socket, from the Main |
In a Circuit, how can a
-Speaker
-Bulb
-Kettle
-Motor
Use the Energy from the Battery? | -The Speaker Transferred Energy away from the Speaker via Sound Waves
-Energy is Carried Away from the Circuit by Light Waves
-Energy is Transferred into the Thermal Energy Store of the Kettle
-Energy is Transferred to the Kinetic Energy Store of the Motor |
In a Circuit, how can a
-Wires
-Motor
-Kettle
Waste the Energy from the Battery? | -The Wires will have Energy Transferred to the Thermal Energy Store, heating up the Wires
-The Motor will also Heat up, wasting Energy
-The Kettle will Heat up the Surroundings and Unneeded Parts of the Kettle |
What does the Power Rating tell you? | -This can simply state how much Power the Appliance use per Second
-Or it tells you how much Power the Appliance uses per Hour |