Energy Resources and energy transfers Flashcards

Question

what are the disadvantages of nuclear reactors

Answer 1

expensive to build and maintain take longer to start up than fossil fuels processing the uranium before you use it causes pollution produces radioactive waste when they are too old or inefficient they have to be decommissioned which is expensive

Answer 2

cheap to run Tough and reliable doesn't produce any polluting air supply is endless wind is never going to run out unlike fossil fuels

Answer 3

They spoil the view you need 1500 wind turbines to replace one coal-fired power stations they require a lot of land space noisy- annoying for people living close by dependent on the weather- low levels of wind= low level of power expensive to set up at sea in particular

Answer 4

Use energy from kinetic store of moving air to generate electricity wind turns the blades which turns a generator

Answer 5

free renewable with no environmental problems

Answer 6

only possible in certain areas where hot rocks lie quite near to the surface cost of drilling down several km is expensive the cost of building a power plant is often high compared to the amount of energy we can get out of it.

Answer 7

The main source of energy comes form the slow decay of various radioactive elements including uranium water is pumped in pipes down to the hot rocks and forced back up due to pressure to turn a turbine which drives a generator energy is transferred from the thermal store to kinetic store to generate electricity

Answer 8

sun is never going to run out renewable- doesn't produce any harmful gases the cost when in use is low/cheap they are the best for object that don't use much energy

Answer 9

dependant on the weather expensive to build only useful for small areas too expensive and impractical to use on the national grid

Answer 10

use energy from the sun to directly generate electricity

Answer 11

solar water panels cooking with solar panels

Answer 12

They produce renewable method for cooking outdoors they are slow, bulky and unreliable

Answer 13

black water pipes inside a glass box the glass lets sun energy in absorbed by the black pipes and heats up the water cost money to set up, but are renewable and free after that only used for small scale

Answer 14

no pollution - renewable produces no polluting gas no fuel cost minimal running cost very useful on small island

Answer 15

fairly unreliable- waves die out when the winds stops weather dependent expensive to build unlikely to provide energy on a large scale

Answer 16

Kinetic and Gravitational stores of water waves are alternately depleted. Mechanical work is done on the generator due to the force of the water. Increase in the kinetic store of generator. electric work is done on the grid

Answer 17

Renewable Produces no polluting gasses Reliable because there are always two tides every day no fuel cost minimal running cost

Answer 18

spoiling view alternating habit to wildlife preventing free access by boats expensive to build The dam may cause local flooding Energy generation cannot change to meet demand Dilute source of energy

Answer 19

Gravitational store of water is depleted. Mechanical work is done on the turbine due to the force of the water. Increase in the kinetic store of turbine. Mechanical work is done on the generator by the turbine. Increase in the kinetic store of generator. Electrical work is done on the electrical grid .

Answer 20

Renewable Produces no polluting gasses Always available Energy generation can change to meet demand Not weather dependent

Answer 21

Requires large dam/flooding large area Geographical limitations (flowing water, hills/mountains)

Answer 22

Gravitational store of water is depleted. Mechanical work is done on the turbine due to the force of the water. Increase in the kinetic store of turbine. Mechanical work is done on the generator by the turbine. Increase in the kinetic store of generator. Electrical work is done on the electrical grid.