Physical Boot Camp 5.6B Demonstrate that the flow of electricity in circuits requires a complete path through which an electric current can pass and can produce light, heat, and sound.

STAAR 2013 #16; RC 2; Readiness 1. The diagram shows a series circuit with three lit bulbs. How many of the bulb will remain lit if the wire is cut at the point show by the arrow? F. 0 G. 1 H. 2 J. 3

STAAR 2013 #16; RC 2; Readiness 1. The diagram shows a series circuit with three lit bulbs. How many of the bulb will remain lit if the wire is cut at the point show by the arrow? F. 0 G. 1 H. 2 J. 3

STAAR 2013 #35; RC 2; Readiness 2. Which of these changes to the electric circuit shown above will cause the light bulb to light up? A. Straightening the wire so that the current can flow more easily. B. Adding a switch and more wire so that the current can flow more easily. C. Turning one battery so that its positive end connects to the other battery’s negative end. D. Making the length of wire the same on both sides of the light bulb.

STAAR 2013 #35; RC 2; Readiness 2. Which of these changes to the electric circuit shown above will cause the light bulb to light up? A. Straightening the wire so that the current can flow more easily. B. Adding a switch and more wire so that the current can flow more easily. C. Turning one battery so that its positive end connects to the other battery’s negative end. D. Making the length of wire the same on both sides of the light bulb.

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B attract materials such as wood C be made permanent TAKS Study Guide, #16 6. One difference between an electromagnet and a bar magnet is that the magnetic field produced by an electromagnet can — A be turned on and off B attract materials such as wood C be made permanent D have two north poles

B attract materials such as wood C be made permanent TAKS Study Guide, #16 6. One difference between an electromagnet and a bar magnet is that the magnetic field produced by an electromagnet can — A be turned on and off B attract materials such as wood C be made permanent D have two north poles

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13. Which of the following is a conductor of electricity? A A safety pin B A rubber eraser C A wooden spoon D A plastic glass

13. Which of the following is a conductor of electricity? A A safety pin B A rubber eraser C A wooden spoon D A plastic glass

14. What is the purpose of an insulator? A To conduct electricity quickly B To speed up the flow of electricity C To slow down the flow of electricity D To complete the creation of a circuit

14. What is the purpose of an insulator? A To conduct electricity quickly B To speed up the flow of electricity C To slow down the flow of electricity D To complete the creation of a circuit

15. All of these are good insulators against electricity EXCEPT— A a rubber eraser B a piece of paper C a paper clip D a plastic comb

15. All of these are good insulators against electricity EXCEPT— A a rubber eraser B a piece of paper C a paper clip D a plastic comb

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19. An object that needs electricity to operate will only work in a closed circuit. An example of this would be a lamp plugged into an electrical outlet. When the lamp is turned on, it creates a closed circuit. If the circuit is open, the lamp – A needs to be removed B glows brightly C is not glowing D blinks on and off

19. An object that needs electricity to operate will only work in a closed circuit. An example of this would be a lamp plugged into an electrical outlet. When the lamp is turned on, it creates a closed circuit. If the circuit is open, the lamp – A needs to be removed B glows brightly C is not glowing D blinks on and off

20. Which of the following is NOT a good conductor of electricity? A A piece of paper B A paper clip C A metal washer D A strip of foil

20. Which of the following is NOT a good conductor of electricity? A A piece of paper B A paper clip C A metal washer D A strip of foil

21. Which of the following is NOT a result of an electrical circuit? A Inertia B Sound C Light D Heat

21. Which of the following is NOT a result of an electrical circuit? A Inertia B Sound C Light D Heat

22. Electricity can flow in a circuit and can produce— A heat B sound C light D all of the above

22. Electricity can flow in a circuit and can produce— A heat B sound C light D all of the above

23. Electricity is measured in units called— A units B watts C pounds D inches

23. Electricity is measured in units called— A units B watts C pounds D inches

24. The complete path through which electricity flows to light up a bulb is called a— A sensor B wire C circuit D plug

24. The complete path through which electricity flows to light up a bulb is called a— A sensor B wire C circuit D plug

25. The circuit pictured above is incomplete 25. The circuit pictured above is incomplete. In order to turn on the light, a piece of wire needs to be connected from— A A to C B A to D C B to C D C to D

25. The circuit pictured above is incomplete 25. The circuit pictured above is incomplete. In order to turn on the light, a piece of wire needs to be connected from— A A to C B A to D C B to C D C to D

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32. Which of the following can most easily produce a magnetic field? A Water B Electricity C Sunlight D Petroleum

32. Which of the following can most easily produce a magnetic field? A Water B Electricity (electromagnet) C Sunlight D Petroleum

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34. A student wraps a wire around an iron nail 34. A student wraps a wire around an iron nail. The student then connects the wire to a battery. The nail attracts another nail and they stick together. What force holds the two nails together? A Gravitational force B Magnetic force C Electrical force D Friction force

34. A student wraps a wire around an iron nail 34. A student wraps a wire around an iron nail. The student then connects the wire to a battery. The nail attracts another nail and they stick together. What force holds the two nails together? A Gravitational force B Magnetic force C Electrical force D Friction force

35. Which of the following is NOT part of an electromagnet? A A wire B A piece of iron C A toothpick D A power source

35. Which of the following is NOT part of an electromagnet? A A wire B A piece of iron C A toothpick D A power source

36. Students are designing an electrical circuit that produces sound 36. Students are designing an electrical circuit that produces sound. Which of the following could be used to conduct electricity in the circuit? A Metal foil strip B A small glass tube C A rubber band D A drinking straw

36. Students are designing an electrical circuit that produces sound 36. Students are designing an electrical circuit that produces sound. Which of the following could be used to conduct electricity in the circuit? A Metal foil strip B A small glass tube C A rubber band D A drinking straw

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40. During a science investigation, a student made the device shown 40. During a science investigation, a student made the device shown. This device can BEST be used as a— A heater B magnet C light source D simple radio

40. During a science investigation, a student made the device shown 40. During a science investigation, a student made the device shown. This device can BEST be used as a— A heater B magnet C light source D simple radio

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44. Which of the objects below is NOT needed to test electrical conductivity? A. Battery B. Object powered by electricity C. Insulated wire J. Electrical tape M.S. ?’s

44. Which of the objects below is NOT needed to test electrical conductivity? A. Battery B. Object powered by electricity C. Insulated wire J. Electrical tape M.S. ?’s

45. What process causes electricity to flow in a circuit, completing its path so that an electric current can pass through and produce sound? A. Conductivity B. Solubility C. Insulation D. Vibrations

45. What process causes electricity to flow in a circuit, completing its path so that an electric current can pass through and produce sound? A. Conductivity B. Solubility C. Insulation D. Vibrations

46. Students are experimenting with the flow of electricity in circuits. The teacher instructed them to wear rubber gloves during the experiment because – A. rubber gloves are insulators B. rubber gloves are conductors C. rubber gloves keep the student dry D. rubber gloves allow electricity to flow

46. Students are experimenting with the flow of electricity in circuits. The teacher instructed them to wear rubber gloves during the experiment because – A. rubber gloves are insulators B. rubber gloves are conductors C. rubber gloves keep the student dry D. rubber gloves allow electricity to flow

47. A group of students decide to investigate what is required to make a complete path through which an electric current can pass. The students used different objects to see if they could produce heat. They tested each object but did not record their observations. Why is it important for students to repeat this investigation? A. to formulate a new hypothesis B. to record accurate data C. to test additional objects D. to communicate a written conclusion

47. A group of students decide to investigate what is required to make a complete path through which an electric current can pass. The students used different objects to see if they could produce heat. They tested each object but did not record their observations. Why is it important for students to repeat this investigation? A. to formulate a new hypothesis B. to record accurate data C. to test additional objects D. to communicate a written conclusion

48. A student forgets to use a plastic coated wire and notices that the wire connecting to the battery is very hot. Which statement below explains why the wire is hot? A. The wire is not insulated and electrical energy from the wire produces heat. B. The wire is not insulated and electrical energy flowing from the battery produces heat. C. The wire is not insulated and electrical energy from the bulb heats the wire. D. The wire is not insulated and electrical energy from the switch produces heat.

48. A student forgets to use a plastic coated wire and notices that the wire connecting to the battery is very hot. Which statement below explains why the wire is hot? A. The wire is not insulated and electrical energy from the wire produces heat. B. The wire is not insulated and electrical energy flowing from the battery produces heat. C. The wire is not insulated and electrical energy from the bulb heats the wire. D. The wire is not insulated and electrical energy from the switch produces heat.

49. Which part of the circuit is the energy source. A. Wire B. Bulb C 49. Which part of the circuit is the energy source? A. Wire B. Bulb C. Battery D. Switch

49. Which part of the circuit is the energy source. A. Wire B. Bulb C 49. Which part of the circuit is the energy source? A. Wire B. Bulb C. Battery D. Switch

50. Which of these could NOT be used to replace a wire in a circuit. A 50. Which of these could NOT be used to replace a wire in a circuit? A. Iron nail B. Bendable straw C. Steel spoon D. Aluminum Foil

50. Which of these could NOT be used to replace a wire in a circuit. A 50. Which of these could NOT be used to replace a wire in a circuit? A. Iron nail B. Bendable straw C. Steel spoon D. Aluminum Foil

51. Electricity can be used to produce— A. Light B. Heat C. Sound D 51. Electricity can be used to produce— A. Light B. Heat C. Sound D. All of the above

51. Electricity can be used to produce— A. Light B. Heat C. Sound D 51. Electricity can be used to produce— A. Light B. Heat C. Sound D. All of the above

52. When wires are connected to a battery and a light bulb in a circuit, the light bulb is lit. Which types of energy are produced by the battery and light bulb? A. Electrical and light B. Sound and light C. Electrical and sound D. Light and sound

52. When wires are connected to a battery and a light bulb in a circuit, the light bulb is lit. Which types of energy are produced by the battery and light bulb? A. Electrical and light B. Sound and light C. Electrical and sound D. Light and sound

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 53. Which group took the least amount of time to complete their circuit? A. Group 1 B. Group 2 C. Group 3 D. Group 4 Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 53. Which group took the least amount of time to complete their circuit? A. Group 1 B. Group 2 C. Group 3 D. Group 4 Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 54. Which accurately shows the order from shortest amount of time to longest amount of time taken to complete the experiment? A. 1, 2, 3, 4 B. 4, 2, 1, 3 C. 4, 1, 2, 3 D. 3, 1, 2, 4 Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 54. Which accurately shows the order from shortest amount of time to longest amount of time taken to complete the experiment? A. 1, 2, 3, 4 B. 4, 2, 1, 3 C. 4, 1, 2, 3 D. 3, 1, 2, 4 Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 55. How much longer did it take Group 3 to light the bulb that Group 2? A. 55 B. 35 C. 25 D. 20 Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

Students were discovering how to create a circuit which lit a light bulb. The teacher recorded the work time for each group: 55. How much longer did it take Group 3 to light the bulb that Group 2? A. 55 B. 35 C. 25 D. 20 (55-35 = 20) Start Time End Time Group 1 9:15 a.m. 10:05 a.m. Group 2 9:17 a.m. 10:02 a.m. Group 3 9:20 a.m. 10:15 a.m. Group 4 9:23 a.m. 9:58 a.m.

56. Students made observations while constructing circuits 56. Students made observations while constructing circuits. Which of the following would be an incorrect observation? A. The path for electricity to flow must be closed. B. Aluminum foil cannot be used as a path for electricity to flow. C. Conductors, such as copper wire and iron nails, can be used to connect the energy source to the light bulb. D. Electricity does not flow through the circuit when the circuit is open.

56. Students made observations while constructing circuits 56. Students made observations while constructing circuits. Which of the following would be an incorrect observation? A. The path for electricity to flow must be closed. B. Aluminum foil cannot be used as a path for electricity to flow. C. Conductors, such as copper wire and iron nails, can be used to connect the energy source to the light bulb. D. Electricity does not flow through the circuit when the circuit is open.

57. Students were given materials to complete a circuit to turn on one light. The materials received were 2 wires, a AA battery, and various sizes of light bulbs. What is the variable in the experiment? A. Wires B. Battery C. Size of light bulb D. Time of day

57. Students were given materials to complete a circuit to turn on one light. The materials received were 2 wires, a AA battery, and various sizes of light bulbs. What is the variable in the experiment? A. Wires B. Battery C. Size of light bulb D. Time of day

58. After several tries to turn on a light using a simple circuit, a student concluded that the circuit must be closed in order for the light to be turned on. Is the student’s conclusion reasonable? A. No, because circuits cannot turn on lights. B. No, because the circuit needs to remain open in order for it to work. C. Yes, because all conclusions are correct. D. Yes, because circuits must be closed in order for the electricity to flow through them.

58. After several tries to turn on a light using a simple circuit, a student concluded that the circuit must be closed in order for the light to be turned on. Is the student’s conclusion reasonable? A. No, because circuits cannot turn on lights. B. No, because the circuit needs to remain open in order for it to work. C. Yes, because all conclusions are correct. D. Yes, because circuits must be closed in order for the electricity to flow through them.

59. In science class, students were investigation ways to build circuits. Which items should students choose to create a working electrical circuit? A. One copper wire, wood chips, and a light bulb B. Two copper wires, a plastic straw, and a light bulb C. Two copper wires, a battery, and a light bulb D. Wood chips, iron fillings, and a battery

59. In science class, students were investigation ways to build circuits. Which items should students choose to create a working electrical circuit? A. One copper wire, wood chips, and a light bulb B. Two copper wires, a plastic straw, and a light bulb C. Two copper wires, a battery, and a light bulb D. Wood chips, iron fillings, and a battery