Energy resources and transfers Flashcards
Description of Series Circuit with advantages and disadvantages
All components are on the same path/loop
advantages : similar and less likely to overheat
Disadvantages: If one component fails, they all fail
Description of a parallel circuit with advantages and disadvantage
Components are on more than one part/loop
Advantages : If one component fails, the rest will keep working
components have higher voltage
Disadvantage: more likely to overheat
what happens as you increase the number of components
the resistance increases
the current decreases
what components must you have to measure the resistance of a component
- A component (lamp, resistor)
-A way of measuring the current (ammeter in series)
- A way of measuring the voltage (volumeter in parallel)
- A way of varying the current (variable resistor in series)
what happens when resistance increases
current decreases
describe an LDR (Light dependant resistor)
high resistance in dark
as light intensity increases
resistance decreases
describe a thermistor
High resistance in the cold
as temperature increases resistance decreases
what is the equation linking voltage, current , resistance
voltage = current x resistance
In series circuit what is the current like
the same everywhere
in parallel circuit what happens to current and why
current is conserved at a junction in a circuit
this is because charge is conserved cannot be created or destroyed
wat equation links, energy transferred, charge, voltage together
energy transferred = charge x voltage
What is the equation linking work done force and distance moved
Work done= force x distance moved
What is the equation for GPE
GPE= Height x Mass x G (10)
