Energy 1
A joule transferred per second is known as a ....
Watt
The energy store in chocolate?
What is chemical energy?
The energy transfer in a rollercoaster car drop
What is GPE to KE?
The potential difference and the frequency of the mains
230V and 50Hz
Potential difference / Current =
Resistance
Kilojoule
What do we call 1000 joules?
The energy store you have at the top of a mountain
What is GPE?
The energy transfer in a rocket
Chemical to gravitational
When the temperature of a thermistor increases its resistance....
Decreases
Potential difference x Current =
Power
Megajoules
What do we call a million joules?
It depends on your mass and your speed
What is kinetic energy?
The energy transfer when you fall onto a trampoline
KE to elastic
What electrical component has a very high resistance in one direction?
Diode
Current x Time =
Charge flow
It is the old fashioned unit for energy
What is a calorie?
It depends on your height, your mass and how hard you are being pulled down?
What is GPE?
Energy cannot be created or .......
What is destroyed?
Thermal
Charge flow x Potential difference =
Energy transferred
What is a millijoule?
It depends on the strength of the material and how far it has been stretched.
What is elastic energy?
The units used for specific heat capacity
J/KgoC
This increases the voltage and decreases the current before electricity enters the National Grid
Step Up Transformers
Current2 x Resistance =
Power