Home » Tests » puja » Physics-Energy » Results
Results
Physics-Energy
Muhahaha...a really hard topic.
Convection happens in...
|
|
liquids and gases |
|
|
just solids |
|
|
solids and gases |
What emits more radiation?
|
|
shiny surfaces |
|
|
mirrors |
|
|
dark, matt surfaces |
Name me a way of reducing energy consumption in buildings?
| cavity wall insulation (by anushka) |
| Fibreglass roof insulation (by Anon) |
| switch off lights (by alister) |
| Thermostats (by Victoria) |
| double glazing (by Daniel) |
| insulation (by chezzie) |
| Cavity wall insulation (by Anon) |
| loft insulation
double glazing windows (by Anon) |
| insulation (by Anon) |
| Double Glazing (by Shaafi) |
Name me one disadvantage and advantage of using nuclear power.
| nuclear power does not contribute in global warming. however in an accident it can give of large amounts of radioactive material given off by nuclear reactore. (by anushka) |
| Advantage: Produces no greenhouse gases Disadvantage:radioactive waste is very dangerous and safe storage is expensive (by Anon) |
| cheaper energy (by alister) |
| One advantage is that no Carbon Dioxide is produced. One disadvantage is that nuclear waste is produced. (by Victoria) |
| disadvantage: dangerous
advantage: doesn't damage the environment (by Daniel) |
| bad effects for environment.
lots to use-another resource. (by chezzie) |
| No pollution to atmosphere, nuclear waste. (by Anon) |
| disadvanges= non renewable
advanges = do not produce sulphur dioxide (by Anon) |
| disadvantage - infra red waves spread out
advantage - use for a long time (by Anon) |
| Uranium is readily available. However it is non renewable and will run out. (by Shaafi) |
What's that formula again? The one with work done, distance and force in it..?
| work done = force x distance (by anushka) |
| Work done= Force applied x Distance (by Anon) |
| M=FxD (by alister) |
| Don't understand what question is asking (by Victoria) |
| Work done = force x distance (by Anon) |
| work done = force x distance (moved in a perpendicular direction from the point of action to the pivot.) (by Daniel) |
| work done=distance x force (by chezzie) |
| ???wtf???
(by Anon) |
| Workdone= force x distance (by Shaafi) |
Radiators give out heat through what?
|
|
conduction |
|
|
convection currents |
|
|
radiation |
