2. Explain & Draw each of the following Transparent, translucent, opaque Electromagnetic spectrum Conduction, convection, radiation Open & closed circuit Series & parallel circuit 10 minutes End 5 minut es End

3. Transparent, translucent, opaque Transparent – light passes through, objects appear clear Translucent – some passes through, some is blocked or reflected, objects appear blurry Opaque – light does not pass through, casts a shadow

4. Electromagnetic spectrum

5. Conduction, convection, radiation Conduction – direct contact Convection – flow of a liquid or a gas Radiation – The transfer of thermal energy through electromagnetic rays

6. Open & closed circuit Open circuit – the light is off Closed circuit – the light is on

7. Series & parallel circuit Parallel Circuit – one light goes out the rest Stay lit Series Circuit – one Light goes out, they all Go out.

8. 1. The graph below shows the wavelengths of the colors of the spectrum Which color has the shortest wavelength? violet

9. 2. The graph below shows the wavelengths of the colors of the spectrum Which color has the highest frequency? violet

10. 3. The graph below shows the wavelengths of the colors of the spectrum Which color has the longest wavelength? red

11. 4. The graph below shows the wavelengths of the colors of the spectrum Which color has the longest frequency? red

12. 5. What kind of energy from the Sun can cause sunburn Ultraviolet radiation

13. 6. What describes how sound waves travel? outward in all directions

14. 7. What are the parts of the diagram below? A. Wavelength B. amplitude C. trough D. crest

15. 8. As the amplitude of a sound wave increases, its volume _______ increases

16. 9. Insulation is used to prevent heat flow

17. 10. Which part of the electromagnetic spectrum has waves of the shortest wavelength gamma rays

18. 11. The following is a diagram of the electromagnetic spectrum divided into four parts. A. radio waves B. infrared waves C. visible light D. gamma rays

19. 12. Which type of circuit has only one path for the electric current? Series circuit

20. 13. A two-story house is warmer on the second floor and cooler on the first floor due to the principle of what? convection

21. 14. How does heat travel through solids? conduction

22. 15. Which is the energy associated with the movement of electrons from one place to another? electricity

23. 16. What is electricity? A form of energy

24. 17. Describe how heat will be transferred when adding new fish to a fish tank if the water in the tank is 20°C and the water in the bag is 27°C? Heat will move from the bag of fish to the water in the tank

25. 18. What measure identifies the pitch of a sound? frequency

26. 19. Which is the weakest type of electromagnetic waves? Radio waves

27. 20. What is an example of mechanical energy? car

28. 21. What is stored energy ? Potential energy

29. 22. What is the energy of motion? Kinetic energy

30. 23. The flow of charged particles moving through a circuit is _________. current

31. 24. Why are metals conductors of heat? Metal absorb heat and distribute it evenly, also they have few valence electrons

32. 25. Which picture correctly shows heat flowing? 2

33. 26. What does the diagram help explain? The areas of strength in a magnetic field

34. 27. A student hypothesizes that sound travels faster through glass than through plastic or wood. He performs an experiment and gathers his data. The following graph shows his data. What is a good conclusion? Sound travels fastest through plastic

35. 28. The table below shows the thermal conductivity of different materials. Substances with higher values conduct heat better. Which material warms the fastest? Copper

36. 29. A lit fireplace at one end of a large room warms people standing on the opposite end of the room by ___. radiation and convection.

37. 30. A windmill harnesses the power of __________ mechanical energy that can be converted into electrical.

38. 31. Friction between a skateboard wheel and the surface produces heat energy

39. 32. What is an example of chemical potential energy? A battery Food

40. 33. What is an example of kinetic energy? Moving car Bouncing ball

41. 34. An echo is heard when sound waves are ______. Reflected from a surface

42. 35. A material that allows most of the light that strikes it to pass through and form a blurry image is called what? translucent

43. 36. Which is a mirror that curves inward? Concave mirror

44. 37. If the frequency increases the wavelength Decreases.

45. 37. What do vibrating molecules in any matter emit? Infrared waves

46. 38. Which describes an increase in a material’s volume when its temperature increases? Thermal expansion

47. 39. An object that absorbs all the colors in the visible spectrum will appear black

48. 40. Study this diagram of a ray of light shining on a glass window. How will the ray of light travel through the glass? It will bend towards the normal.