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PS 7.8.1 – 7.8.3 TEST 8TH GRADE SCIENCE. 1.ELECTRIC CURRENT IS MEASURED IN ______. A.VOLTS B. CIRCUITS C. AMPERES D. OHMS 2. VOLTAGE DIFFERENCE IS MEASURED.

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Presentation on theme: "PS 7.8.1 – 7.8.3 TEST 8TH GRADE SCIENCE. 1.ELECTRIC CURRENT IS MEASURED IN ______. A.VOLTS B. CIRCUITS C. AMPERES D. OHMS 2. VOLTAGE DIFFERENCE IS MEASURED."— Presentation transcript:

1 PS – TEST 8TH GRADE SCIENCE

2 1.ELECTRIC CURRENT IS MEASURED IN ______. A.VOLTS B. CIRCUITS C. AMPERES D. OHMS 2. VOLTAGE DIFFERENCE IS MEASURED IN ______. A.VOLTS B. CIRCUITS C. AMPERES D. OHMS 3. A CLOSED PATH THAT ELECTRIC CURRENT FOLLOWS IS A _________. A.VOLT B. CIRCUIT C. AMPERE D. OHM 4. THE NET MOVEMENT OF ELECTRIC CHARGES IN A SINGLE DIRECTION IS AN _________. A.ELECTRIC CIRCUIT B. ELECTRIC CURRENT C. DRY CELL D. WET CELL

3 5. A _____ CAN PROVIDE THE VOLTAGE DIFFERENCE THAT IS NEEDED TO KEEP CURRENT FLOWING IN A CIRCUIT. A.FUSE B. BREAKER C. BATTERY D. OHM 6. ONE ELECTRODE IS THE CARBON ROD, AND THE OTHER IS THE ZINC CONTAINER. A.WET CELL B. DRY CELL C. LEAD ACID 7. 2 CONNECTED PLATES MADE OF DIFFERENT METALS OR METALLIC COMPOUNDS IN A CONDUCTING SOLUTION. A. WET CELL B. DRY CELL C. LEAD ACID

4 8. MOST CAR BATTERIES ARE ___ BATTERIES. A.DRY CELL B. WET CELL C. LEAD ACID 9. THIS CURRENT HAS ONLY 1 LOOP TO FLOW THROUGH. THEY ARE USED IN FLASHLIGHTS. A.OPEN CIRCUIT B. RESISTANCE C. SERIES CIRCUIT D. OHM 10. _____ IS THE TENDENCY FOR A MATERIAL TO OPPOSE THE FLOW OF ELECTRONS, CHANGING ELECTRICAL ENERGY INTO THERMAL ENERGY AND LIGHT. A. RESISTANCE B. SERIES CIRCUIT C. OHMS LAW

5 11. THE CURRENT IN A CIRCUIT EQUALS THE VOLTAGE DIFFERENCE DIVIDED BY THE RESISTANCE. A.OPEN CIRCUIT B. OHM’S LAW C. SERIES CIRCUIT D. PARALLEL CIRCUIT 12. RESISTANCE IS MEASURED IN _______. A.OHMS B. FUSES C. WATTS D. CELLS 13. A BURNED OUT BULB IN THIS CIRCUIT CAN CAUSE THE WHOLE STRING OF LIGHTS TO GO OUT. A. DRY B. PARALLEL C. SERIES D. OPEN

6 14. THE MAIN SWITCH AND CIRCUIT BREAKER, OR THE ___________ SERVES AS AN ELECTRICAL HEADQUARTERS FOR YOUR HOME. A.FUSE BOX B. DRY CELL C. OPEN CIRCUIT D. SERIES CIRCUIT 15. THIS CIRCUIT CONTAINS 2 OR MORE BRANCHES FOR CURRENT TO MOVE THROUGH. A.OPEN B. FUSE C. PARALLEL D. SERIES 16. THIS CONTAINS A SMALL PIECE OF METAL THAT MELTS IF THE CURRENT BECOMES TOO HIGH. A. WATT B. CIRCUIT C. OHM D. FUSE

7 17. TOO MANY APPLIANCES IN USE AT THE SAME TIME IS THE MOST LIKELY CAUSE_____OF THE CIRCUIT. A.MORE POWER B. WATTAGE C. OVERHEATING D. CIRCUIT ACTION 18. A ____________ CONTAINS A PIECE OF METAL THAT BENDS WHEN THE CURRENT IN IT IS SO LARGE THAT IT GETS HOT. A.CIRCUIT BREAKER B. FUSE C. OHM BREAKER D. PARALLEL CIRCUIT

8 19. THE UNIT FOR POWER IS THE ______. A.OHM B. VOLT C. WATT D. CELL 20. THE RATE AT WHICH ELECTRICAL ENERGY IS CONVERTED TO ANOTHER FORM OF ENERGY IS THE _____________________. A.ELECTRIC POWER B. KILOWATT HOUR C. ELECTRIC OHM D. CIRCUIT BREAKER 21. ELECTRICAL ENERGY USUALLY IS MEASURED IN _____. A.WATT HOURS B. KILOWATT HOURS C. CIRCUIT HOURS D. FUSE HOURS

9 22. WHICH OF THE FOLLOWING EQUATIONS IS USED TO CALCULATE ELECTRIC POWER? A. V = PI B. V = IP C. I = VP D. P = IV 23. ONE KILOWATT EQUALS HOW MANY WATTS? A. 10 B. 100 C D. 10,000

10 1.ELECTRIC CURRENT IS MEASURED IN ______. C. AMPERES 2. VOLTAGE DIFFERENCE IS MEASURED IN ______. A. VOLTS 3. A CLOSED PATH THAT ELECTRIC CURRENT FOLLOWS IS A _________. B. CIRCUIT 4. THE NET MOVEMENT OF ELECTRIC CHARGES IN A SINGLE DIRECTION IS AN _________. B. ELECTRIC CURRENT

11 5. A _____ CAN PROVIDE THE VOLTAGE DIFFERENCE THAT IS NEEDED TO KEEP CURRENT FLOWING IN A CIRCUIT. C. BATTERY 6. ONE ELECTRODE IS THE CARBON ROD, AND THE OTHER IS THE ZINC CONTAINER. B. DRY CELL 7. 2 CONNECTED PLATES MADE OF DIFFERENT METALS OR METALLIC COMPOUNDS IN A CONDUCTING SOLUTION. A. WET CELL

12 8. MOST CAR BATTERIES ARE ___ BATTERIES. C. LEAD ACID 9. THIS CURRENT HAS ONLY 1 LOOP TO FLOW THROUGH. THEY ARE USED IN FLASHLIGHTS. C. SERIES CIRCUIT 10. _____ IS THE TENDENCY FOR A MATERIAL TO OPPOSE THE FLOW OF ELECTRONS, CHANGING ELECTRICAL ENERGY INTO THERMAL ENERGY AND LIGHT. A. RESISTANCE

13 11. THE CURRENT IN A CIRCUIT EQUALS THE VOLTAGE DIFFERENCE DIVIDED BY THE RESISTANCE. B. OHM’S LAW 12. RESISTANCE IS MEASURED IN _______. A. OHMS 13. A BURNED OUT BULB IN THIS CIRCUIT CAN CAUSE THE WHOLE STRING OF LIGHTS TO GO OUT. D. OPEN

14 14. THE MAIN SWITCH AND CIRCUIT BREAKER, OR THE ___________ SERVES AS AN ELECTRICAL HEADQUARTERS FOR YOUR HOME. A.FUSE BOX 15. THIS CIRCUIT CONTAINS 2 OR MORE BRANCHES FOR CURRENT TO MOVE THROUGH. C. PARALLEL 16. THIS CONTAINS A SMALL PIECE OF METAL THAT MELTS IF THE CURRENT BECOMES TOO HIGH. D. FUSE

15 17. TOO MANY APPLIANCES IN USE AT THE SAME TIME IS THE MOST LIKELY CAUSE_____OF THE CIRCUIT. C. OVERHEATING 18. A ____________ CONTAINS A PIECE OF METAL THAT BENDS WHEN THE CURRENT IN IT IS SO LARGE THAT IT GETS HOT. A. CIRCUIT BREAKER

16 19. THE UNIT FOR POWER IS THE ______. C. WATT 20. THE RATE AT WHICH ELECTRICAL ENERGY IS CONVERTED TO ANOTHER FORM OF ENERGY IS THE _____________________. A. ELECTRIC POWER 21. ELECTRICAL ENERGY USUALLY IS MEASURED IN _____. B. KILOWATT HOURS

17 22. WHICH OF THE FOLLOWING EQUATIONS IS USED TO CALCULATE ELECTRIC POWER? D. P = IV 23. ONE KILOWATT EQUALS HOW MANY WATTS? C. 1000


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