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

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

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

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

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

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

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

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

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

11. 9. Insulation is used to prevent heat flow

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

13. 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

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

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

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

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

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

19. 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

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

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

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

23. 21. What is stored energy ? Potential energy

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

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

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

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

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

29. 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

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

31. 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.

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

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

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

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

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

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

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

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

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

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

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

43. 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.