current electricity Flashcards
get 80% or above
what do cells in parallel do?
increases the life span of a cell
what do cells in series do?
increases the voltage of a cell
what is static electricity?
the study of electric change that build up on an object (changes at rest)
what is current electricity?
the study of electric charge that move along a conductor through a closed circuit
what does a source do? list examples
it produces the energy - cell/battery
what does a load do? list examples
it’s where the energy is being used - light bulb/metor
what does a control device do? list examples
determines if the device is on or off/open or closed - switch/fuse
what does a connector do? list example
spreads the energy from the electrical source to the load - conducting wire/ joined wires
what does a meter do? list examples
used to measure current or voltage - ammeter/voltmeter
what is a primary cell?
one use such as wet cells or dry cells
what is a secondary cell?
can be used more than once or recharged
is wind renewable or non-renewable? what are some advantages and disadvantages?
renewable
- cheaper that other methods -they’re a big eye sore
- added and removed easily -some are noisy
- locations are easy to find
is fossil fuel coal renewable or non-renewable? what are some advantages and disadvantages?
non-renewable
- easy and inexpensive to mine -airborne particles
- irritates the body
- pollutes