Question

9. The most dangerous part of fallout is: ( ) carbon dioxide () plutonium () fission fragments ( ) lead 10. The typical velocity of water in your blood (the speed that molecules shake) is about ( ) 1 mile per 5 seconds () 186,000 miles per second ()1 cm per second 11. Solar power is about () 10 watts per square meter () 103 watts per square meter () 106 watts per square meter () 109 watts per square meter 12. Ice melts at what temperature? Mark ALL those are correct ( ) 32 F ()0C () 273 K () 0K 13. A refrigerator operating in a room () warms the room ( ) cools the room ( ) has no effect on the room () removes water vapor from the room 14. The pipe in a pipe bomb is there ) because its fragments do most of the damage () only to hold the explosive ( ) to contain the explosion and minimize the damage () to make the explosion go out the ends 15. To make hydrogen undergo fusion, the main thing needed is ( ) carbon to act as a catalyst ( ) very high temperature ( ) a moderator ( ) a critical mass

Answer 1

9. The most dangerous parts of fallout is fission fragments because it is a radio active materials.

10. The typical velocity of water in our blood is 1cm/second

11. Solar power is about 10 watts per square meter

12. Ice melts at 0 C and it's equivalent temperature is 32F and 273K

13. A refrigerator operating in a room warms the room because heat inside refrigerator is exhausted in to room

14. The pipe in a pipe bomb because it's fragments do most of the damage

15. To make hydrogen under go fusion, the main thing needed is very high temperature, because it is a nuclear reaction.