gcse aqa physics paper 1 flashcards
| Front | what is needed for an electrical charge |
| Back | -closed circuit-source of potential difference (eg cell) |
| Front | process of nuclear fission |
| Back | -nucleus absorbs neutron-splits to form two new lighter elements-two or three neutrons released-the neutrons move slow enough to be absorbed by another nucleus-cause more fission=chain reaction-energy not converted to KE store of products carried away by gamma rays |
| Front | how can we reduce unwanted energy transfers |
| Back | -lubrication-thermal insulation |