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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
UNIT 3A ENERGY TEST REVIEW Name: _______________________ Date: _________________ 1. 2. 3. 4. ENERGY CAN BE ___________________ FROM ONE TYPE TO ANOTHER TYPE WHERE DOES ENERGY OF THE EARTH COME FROM? ___________________ ENERGY COMES FROM THE MOVEMENT OF CHARGED PARTICLES THERMAL ENERGY IS TRANSFERRED THROUGH A MATERIAL BY THE COLLISION OF _________________ WITHIN THE MATERIAL 5. MECHANICAL ENERGY IS THE SUM OF WHICH TWO ENERGY SOURCES? 6. WHAT TYPE OF ENERGY IS STORED IN PARTICLES THAT MAKE UP FOOD AND OTHER FUELS? 7. WHAT IS NUCLEAR ENERGY? 8. BONUS: WHAT IS ENERGY….? REALLY? 9. _______________ IS THE ABILITY TO CAUSE CHANGES OR DO WORK 10. WHAT HAPPENS WHEN YOU HEAT A SOLID? 11. THE ENERGY OF A MOVING OBJECT IS CALLED _____________ ENERGY 12. STORED ENERGY IS CALLED _____________ ENERGY 13. ENERGY CAN CHANGE FROM ONE FORM TO ANOTHER T OR F 14. WRITE IN ORDER OF INCREASING KINETIC ENERGY: SOLID, LIQUID, GAS 15. IN WHAT DIRECTION DOES THE TRANSFER OF ENERGY FROM HEAT MOVE BETWEEN A HOTTER AND COLDER OBJECT? 16. THIS VOCABULARY WORD IS REFERRING TO HEAT: 17. THE TEMPERATURE TWO OBJECTS REACH WHEN THEY TOUCH: 1 18._______________ IS THE ABILITY TO CAUSE CHANGES OR DO WORK. IT MAKES THINGS ____________. 19.DURING THE DAY, THE SAND AT THE BEACH IS VERY WARM, WHILE AT NIGHT ITS COOLER. WHY? 20.IF YOU PLACE A HOT STONE IN BEAKER OF COLD WATER, WHAT WOULD HAPPEN TO THE STONE AND WATER AFTER 10 MINUTES? 21.ENERGY CAN CHANGE FROM ONE FORM TO ANOTHER TRUE OR FALSE 22.WRITE IN ORDER OF INCREASING KINETIC ENERGY: SOLID, LIQUID, GAS 23.IN WHAT DIRECTION DOES THE TRANSFER OF ENERGY FROM HEAT MOVE BETWEEN A HOTTER AND COLDER OBJECT? 24.WHAT IS #7 CALLED? 25.THIS VOCABULARY WORD IS REFERRING TO HEAT: 26.THE TEMPERATURE TWO OBJECTS REACH WHEN THEY TOUCH: 27.CHOOSE CORRECT ANSWER: MATERIALS GET WARMER FROM THE ABSORPTION OR REFELCTION OF LIGHT BECAUSE TRANSFERRED LIGHT EMITS HEAT. 2 28.CAN KINETIC ENERGY EVER BE BIGGER THAN POTENTIAL ENERGY? WHY? 29.WHERE DOES ELECTRICITY COME FROM? 30.NAME TWO TYPES OF ENERGY ELECTRICAL ENERGY IS CONVERTED TO? 31.HOW IS ENERGY TRANSFERRED FROM THE SUN TO EARTH? 32. Which has more heat energy? A small candle flame or a large ice sculpture and why? 3 33. Why did the teacher need a pair of heat resistant rubber gloves when I touched the hot beakers during lab? a. Rubber is a poor conductor of heat and electricity b. Rubber is a good conductor of heat and electricity c. Rubber is a poor conductor of electricity and a good conductor of heat 34. Which one is considered a good insulator of heat? a. Plastic, because heat is unable to flow through it b. Glass, because heat is able to flow easily c. Aluminum, because it allows heat to flow easily 35. A pot is heated on the stove. Why is the metal handle hot? a. Conduction b. Convection c. Radiation 36. What is responsible for the uneven heating in the atmosphere? a. Conduction b. Convection c. Radiation 37. Why can you feel the heat around the campfire even though you don’t touch it a. Conduction b. Convection c. Radiation 38. Why is there a difference in temperature when you are standing in a pool? a. Conduction b. Convection c. Radiation 39. What is the best material for conducting electricity or heat? a. Wood b. Metal c. Stone d. Plastic 40. Why shouldn’t you use a metal fork to remove a piece of toast from a toaster? 4 41. What is the best material to use in the circuit below to make light glow? Why? Plastic straw Cotton string Aluminum foil Rubber eraser 42. Circle correct answer: Materials will generally become warmer through the absorption/reflection of light because light when transferred will emit/absorb heat. BONUS: 43. What does energy transfer mean? Give an example 44. What dos energy transformation mean? Give an example 45. Give an example of energy transformation using one of the following types of energy: Chemical, mechanical, sound, nuclear, thermal 46. What is another name for transformed? 5 47. When energy is transferred or transformed, what happens to the total energy of the system? 48. When an electromagnetic waves strike a pipe, what usually happens? a. The pipe gets cooler b. The pipe reflects all of the waves c. The pipe absorbs some of the rays 49. Why are metals used for making pots and pans? a. Metals conduct heat and have a high melting point b. Metals conduct heat and have low melting pong c. Metals radiate heat and have high melting point 50. Why do electric cords come with plastic coating wrapped over the wires? a. Plastic is a conductor and prevents wires from shocking you b. Plastic is an insulator and prevents wires from shocking you c. Plastic makes the wires look neat 51. A student notices that an inflated balloon gets larger when it is warmed up by a lamp. What caused the balloon to become larger? a. The heat from lamp caused the particles of the balloon to contract, making it larger b. The heat from lamp caused the particles of balloon to expand, making it larger UNIT 3A ENERGY TEST REVIEW KEY 1. 2. 3. 4. ENERGY CAN BE TRANSFORMED FROM ONE TYPE TO ANOTHER TYPE WHERE DOES ENERGY OF THE EARTH COME FROM? From the sun ELECTRICAL ENERGY COMES FROM THE MOVEMENT OF CHARGED PARTICLES THERMAL ENERGY IS TRANSFERRED THROUGH A MATERIAL BY THE COLLISION OF ATOMS WITHIN THE MATERIAL 5. MECHANICAL ENERGY IS THE SUM OF WHICH TWO ENERGY SOURCES? KINETIC AND POTENTIAL 6. WHAT TYPE OF ENERGY IS STORED IN PARTICLES THAT MAKE UP FOOD AND OTHER FUELS? CHEMICAL 7. BONUS: WHAT IS NUCLEAR ENERGY? POTENTIAL ENERGY STORED WITHIN THE BONDS BETWEEN PROTONS AND NEUTRONS OF AN ATOM 8. What is energy? Really? The ability to do work 9. _________Energy______ IS THE ABILITY TO CAUSE CHANGES OR DO WORK 10. WHAT HAPPENS WHEN YOU HEAT A SOLID? Atoms vibrate faster 11. THE ENERGY OF A MOVING OBJECT IS CALLED _____kinetic________ ENERGY 12. STORED ENERGY IS CALLED ___potential__________ ENERGY 6 13. ENERGY CAN CHANGE FROM ONE FORM TO ANOTHER T OR F TRUE 14. WRITE IN ORDER OF INCREASING KINETIC ENERGY: SOLID, LIQUID, GAS 15. IN WHAT DIRECTION DOES THE TRANSFER OF ENERGY FROM HEAT MOVE BETWEEN A HOTTER AND COLDER OBJECT? Hot to cold 16. THIS VOCABULARY WORD IS REFERRING TO HEAT: thermal 17. THE TEMPERATURE TWO OBJECTS REACH WHEN THEY TOUCH: reach equilibrium 18. ENERGY IS THE ABILITY TO CAUSE CHANGES OR DO WORK. IT MAKES THINGS MOVE. 19. DURING THE DAY, THE SAND AT THE BEACH IS VERY WARM, WHILE AT NIGHT ITS COOLER. WHY? A. THE SAND REFLECTS THE SUN’S ENERGY DURING THE DAY, CAUSING IT TO BECOME WARMER B. THE SAND ABSORBS THE SUN’S ENERGY DURING THE DAY, CAUSING IT TO BECOME WARMER 20. IF YOU PLACE A HOT STONE IN BEAKER OF COLD WATER, WHAT WOULD HAPPEN TO THE STONE AND WATER TEMPERATURE AFTER 10 MINUTES? The hot stone will transfer energy and heat to cold water and they will reach equilibrium temp. 21. ENERGY CAN CHANGE FROM ONE FORM TO ANOTHER TRUE OR FALSE : TRUE 22. WRITE IN ORDER OF DECREASING KINETIC ENERGY: SOLID, LIQUID, GAS GAS-LIQUID-SOLID 23. IN WHAT DIRECTION DOES THE TRANSFER OF ENERGY FROM HEAT MOVE BETWEEN A HOTTER AND COLDER OBJECT? FROM HOTTER TO COLDER 24. THE TRANSFER OF ENERGY FROM HEAT IS CALLED HEAT FLOW. (Hint, look at vocab words) 25. THIS VOCABULARY WORD IS REFERRING TO HEAT: THERMAL 26. THE TEMPERATURE TWO OBJECTS REACH WHEN THEY TOUCH: EQUILIBRIUM 27. CHOOSE CORRECT ANSWER: MATERIALS GET WARMER FROM THE ABSORPTION OR REFLECTION OF LIGHT BECAUSE TRANSFERRED LIGHT EMITS HEAT. 28. CAN KINETIC ENERGY EVER BE BIGGER THAN POTENTIAL ENERGY? WHY? 7 NO, BECAUSE POTENTIAL IS THE STORED ENERGY AND KINETIC IS THE MOTION OF THE POTENTIAL 29. WHERE DOES ELECTRICITY COME FROM? HEAT IS RELEASED FROM BURNING COAL AND STEAM RUNS THE TURBIN AND ELECTRICAL GENERATOR 30. NAME TWO TYPES OF ENERGY ELECTRICAL ENERGY IS CONVERTED TO? THERMAL AND SOUND 31. HOW IS ENERGY TRANSFERRED FROM THE SUN TO EARTH? THROUGH ELECTROMAGNETIC WAVES 32. 33. Why did the teacher need a pair of heat resistant rubber gloves when I touched the hot beakers during lab? a. Rubber is a poor conductor of heat and electricity b. Rubber is a good conductor of heat and electricity c. Rubber is a poor conductor of electricity and a good conductor of heat 34. Which one is considered a good insulator of heat? a. Plastic, because heat is unable to flow through it b. Glass, because heat is able to flow easily c. Aluminum, because it allows heat to flow easily 35. A pot is heated on the stove. Why is the metal handle hot? a. Conduction b. Convection c. Radiation 36. What is responsible for the uneven heating in the atmosphere? a. Conduction b. Convection c. Radiation 37. Why can you feel the heat around the campfire even though you don’t touch it a. Conduction b. Convection c. Radiation 38. Why is there a difference in temperature when you are standing in a pool? a. Conduction b. Convection c. Radiation 39. What is the best material for conducting electricity or heat? a. Wood b. Metal c. Stone 8 d. Plastic 40. Why shouldn’t you use a metal fork to remove a piece of toast from a toaster? It will conduct electricity 41. What is the best material to use in the circuit below to make light glow? Why? Plastic straw Cotton string Aluminum foil-best conductor of electricity Rubber eraser 42. Circle correct answer: Materials will generally become warmer through the absorption/reflection of light because light when transferred will emit/absorb heat. BONUS: The walls of the cave were warmed through a process of radiation because a light when shined always gives off heat 43. What does energy transfer mean? Give an example 9 The movement of energy from one place to another Heat transfer 44. What dos energy transformation mean? Give an example The change in form of energy. Electrical to light energy 45. Give an example of energy transformation using one of the following types of energy: Chemical, mechanical, sound, nuclear, thermal Chemical from food to mechanical 46. What is another name for transformed? Changed Converted 47. When energy is transferred or transformed, what happens to the total energy of the system? Stays same 48. When an electromagnetic waves strike a pipe, what usually happens? a. The pipe gets cooler b. The pipe reflects all of the waves c. The pipe absorbs some of the waves 49. Why are metals used for making pots and pans? a. Metals conduct heat and have a high melting point b. Metals conduct heat and have low melting pong c. Metals radiate heat and have high melting point 50. Why do electric cords come with plastic coating wrapped over the wires? a. Plastic is a conductor and prevents wires from shocking you b. Plastic is an insulator and prevents wires from shocking you c. Plastic makes the wires look neat 51. A student notices that an inflated balloon gets larger when it is warmed up by a lamp. What caused the balloon to become larger? a. The heat from lamp caused the particles of the balloon to contract, making it larger b. The heat from lamp caused the particles of balloon to expand, making it larger 10 11