Across
- 1. When a solid is heated the particles gain energy and ……… more
- 4. Light is bounced off an object.
- 7. A lever can multiply this effect
- 9. The separating of colours
- 11. The amount of force per unit area
- 13. To reduce drag, an object should be made more ……..
- 14. Forces can move objects by turning them around this
- 15. Changing of direction of light
- 16. We see this objects because light bounces off them
- 18. Changing from a solid to a liquid
- 20. Heat can be transferred this way through a vacuum
- 21. Angle between the incident ray and normal
- 24. When a solid is heated, it ……..
- 26. Unit for pressure
- 28. Magnet made using electricity
- 30. Magnets are made using this material
- 31. Space around a magnet where its effect is felt
- 35. Poor heat conductor
- 36. The colours of the rainbow
- 37. Changing from a gas to a liquid
- 41. Heat transfer through solids
- 43. Tiles feel colder than carpets because tiles are better
- 49. An image is formed in your eye here
- 50. Secondary colour made by combining red and green
- 51. If you increase this, the pressure will decrease
- 52. There are three magnetic materials. Iron and nickel are two. What is the third?
- 54. Sounds are made by objects moving backwards and forwards. This is called ………..
- 55. This is caused when water or air particles hit an object and bounce off it
- 56. Primary colour that can be mixed with red to make magenta
- 57. Light is taken in by an object
- 58. We can only see a glow of light through these materials.
Down
- 2. Colour that we cannot see beyond red light
- 3. Light can travel through these types of materials.
- 5. These objects only let some colours through
- 6. Changing from a liquid to a solid
- 8. This describes how hot or cold an object is
- 10. Changing from a liquid to a gas
- 12. The strength of an electromagnet can be increased by increasing the number of …..
- 17. A piece of metal that can attract other metals
- 19. When a solid is changing state the temperature is …………..
- 21. Carpets are good insulators because they contain trapped …..
- 22. Uses the Earth’s magnetic field to find direction
- 23. Temperature is measured using this unit
- 25. Heat transfer through fluids
- 27. These sources create their own light.
- 29. Energy is measured using this unit
- 32. Flat mirror
- 33. If the wavelength of a wave decreases, this increases
- 34. Frequency is measured using this unit
- 38. An imaginary line drawn perpendicular to a surface
- 39. Light which goes to a mirror
- 40. Scientists use this to detect sounds
- 42. When a solid cools down, the particles move around slowly and the solid ……
- 44. The height of a wave.
- 45. Scientists use this to represent sound waves
- 46. Light beyond the violet in the spectrum
- 47. Light which comes off a mirror
- 48. The impulses from your retina travel to your brain along this
- 53. If red light hits a blue object, the object will appear this colour