Across
- 3. the number of wavelengths that pass by a point each second
- 6. causes particles in matter to move back and forth along the same direction in which the waves travel
- 7. the angle that the incoming wave makes the normal equals the angle that the outgoing wave makes with the normal
- 9. causes particles in matter to move back and forth at right angles to the direction in which the waves travel
- 10. a substance that a wave travels through
Down
- 1. the change in direction of a wave when it changes speed as it travels from one material to another
- 2. a disturbance that moves through matter or space.
- 4. WAVE a wave that has to travel through a medium
- 5. contain electric and magnetic parts that vibrate up and down perpendicular to the direction the wave travels
- 8. the distance between one point on a wave and the nearest point moving with the same speed and direction