S2 electromagnetism

2. This type of radiation passes through most materials easily but is mostly absorbed by lead
6. Used for communication and TV
7. A circuit with only one loop
10. Units of current
12. Microwaves can do this to your food
14. used to detect broken bones
15. The length of one wave
18. the unit of measurement of frequency
20. A coil of wire around an iron core
21. 2 North or 2 South poles do this
22. A circuit with multiple loops
23. the types of radiation that makes chemical fluoresce on bank notes

1. The colour photographic film turns when x-rays hit it
3. The force produced by magnets
4. Magnetic field lines always point from North to….
5. Infrared is used in this technology to find people in the dark
8. If you spend too long in the Sun you might get this from the ultraviolet radiation
9. Units of voltage
11. The number of waves passing a point in one second
13. North and south poles do this
16. Equipment used to measure current
17. Equipment used to measure voltage
19. Made up of 2 or more cells