Physics module 2

2. How high or low a note sounds to human ears
5. The maximum distance of a particle from its starting point in a wave
9. A wave of energy emitted from the nucleus of a radioactive element
10. The part of the ear that picks up sound vibrations
13. The amount of radiation detected without being near any radioactive sources
17. The distance between two peaks of a wave
18. The centre of an atom, made of neutrons and protons
19. Number of complete waves in 1 seconds

1. A type of wave in which the energy moves in line with the particle movement
3. The type of energy stored in fuels and batteries
4. The unit for measuring frequency
6. The type of energy in a moving object
7. The type of energy that hot objects have. Known as “heat energy
8. A diagram to show how much energy is changed to different forms in a process
11. The force that holds together the protons and neutrons in the nucleus of an atom
12. A non-renewable resource that includes coal, oil and natural gas
14. A source of energy that will never run out eg. wind, solar or tidal
15. Two protons and two neutrons emitted from the nucleus of a radioactive element
16. A type of wave in which the energy moves perpendicular to the particle movement