Place the letter of the best answer in the blank beside the question number.
Physical Science Week 30 Vocabulary Test Name ____________________
_______ 1. When particles with like charges come near each other . A. attraction occurs B. nothing happens C. repulsion occurs D. none of these
_______ 2. Which of these particles is normally associated with electricity . A. electron B. proton C. neutron D. none of these
_______ 3. Electricity with high voltage and low power output . A. AC electricity B. DC electricity C. static electricity D. none of these
_______ 4. Materials that easily allow the flow of an electric current . A. insulator B. conductor C. semiconductor D. none of these
_______ 5. The electric potential difference between two points . A. voltage B. amperes C. ohms D. none of these
_______ 6. A device that changes chemical energy into electrical energy . A. generator B. electric circuit C. fuse D. none of these
_______ 7. Transfer electric charge by touch . A. friction B. conduction C. induction D. none of these
_______ 8. A measure of the amount of current flowing past a given point per second . A. voltage B. amperes C. ohms D. none of these
_______ 9. A complete, closed path for an electric current . A. fuse B. circuit C. battery D. none of these
_______ 10. A measure of the rate at which electricity does work . A. ohms B. amperes C. electric power D. none of these True-false questions - use plus (+) to indicate true and zero (O) to indicate false.
_______ 11. Heat flows from an area of low heat to an area high in heat.
_______ 12. The Kelvin temperature scale is used in all scientific measurements.
_______ 13. The freezing point of water is 32 oC.
_______ 14. The faster the molecules of a substance are moving, the higher the temperature.
_______ 15. The boiling point of water is 100 oC.
_______ 16. A "food calorie" is equal to 100 calories.
_______ 17. Warm air rising is an example of radiation.
_______ 18. Light from the sun takes about eight minutes to reach earth.