Magnets Test 3rd Grade 1s242o
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Name ________________________ Date ______________________ Magnets 1. Barry tested two magnets. Magnet A picked up 12 paper clips. Magnet B picked up 6 paper clips. How much stronger was Magnet A? O ten times stronger O two times stronger O same strength O half as strong 2. Samuel has some plastic letters that stick to the refrigerator door. What can he infer? O They are steel.
O They make thermal energy.
O They contain copper.
O They have magnets inside them.
3. An electromagnet in a junkyard is used to lift ______________________. O plastic or glass O wood O steel or iron O magnets 4. Two bar magnets will attract if O They do not have N and S poles. O Their two S poles are facing.
O Their two N poles are facing. O The N pole of one faces the S pole of the other.
5. How can you tell if an object is a magnet? O See if it sticks to an iron block. O See if it sticks to a glass block. O See if it sticks to a plastic block. O See if it sticks to a rubber block. 6. A block of metal is attracted to a magnet. What must the block contain? O silver O aluminum O iron O copper 7. Use the table to answer the question. Poles Facing Attract/Repel a. N-N b. S-S c. N-S d. S-N A student makes the data table above. What question is this student investigating? O Which of 4 magnets is strongest? O Which poles of magnets attract iron? O Which poles of 2 magnets attract or repel each other? O Which magnets attract or repel steel paper clips? 8. What happens to an electromagnet if you turn off the flow of electricity? O It no longer attracts iron. O It stops making electricity. O Its thermal energy increases. O It gets stronger.
9. How can you make a temporary magnet? O Pull an iron object across a permanent magnet. O Put a magnet on a refrigerator. O Place the S poles of two magnets next to each other. O Place the N pole of one magnet next to the S pole of another. 10. Which is NOT a use of magnets? O holding cabinets closed O generating electricity
O sorting paper from plastic O storing information on computer hard drives
11. Use the table to answer the question. Magnet Number of paper clips picked up A 3 B 17 C 11 D 8 The table shows the results from a test comparing magnet strengths. What can you conclude? O Magnet A is stronger than all the magnets. O Magnet B is stronger than Magnet C. O Magnet D is the weakest of the four magnets. O Magnet D is twice as strong as Magnet A. 12. Which of these is NOT attracted to the N pole of a bar magnet? O The S pole of another bar magnet. O An iron nail. O The S pole of a horseshoe magnet. O The N pole of a horseshoe magnet. Use the words from the word box to complete each sentence. Do not misspell the words.
attract repel
electromagnet temporary magnet
generator
magnet
magnetic
poles
13. When you push something away, you ______________________________ it. 14. A machine that uses a magnet to make electricity is a _______________________________. 15. A ______________________________ attracts objects that contain iron. 16. This word means to pull toward. _________________________________ 17. A _______________________________ is an object that is magnetic for a brief period of time. 18. A kind of magnet that can be turned on and off is an ______________________________. 19. _____________________________ objects will stick to most refrigerators. 20. All magnets have two ends called _________________________ .
Name ANSWER KEY
Date ______________________
Magnets 1. Barry tested two magnets. Magnet A picked up 12 paper clips. Magnet B picked up 6 paper clips. How much stronger was Magnet A? O ten times stronger O two times stronger O same strength O half as strong 2. Samuel has some plastic letters that stick to the refrigerator door. What can he infer? O They are steel.
O They make thermal energy.
O They contain copper.
O They have magnets inside them.
3. An electromagnet in a junkyard is used to lift _______________________. O plastic or glass O wood O steel or iron O magnets 4. Two bar magnets will attract if O They do not have N and S poles. O Their two S poles are facing.
O Their two N poles are facing. O The N pole of one faces the S pole of the other.
5. How can you tell if an object is a magnet? O See if it sticks to an iron block. O See if it sticks to a glass block. O See if it sticks to a plastic block. O See if it sticks to a rubber block. 6. A block of metal is attracted to a magnet. What must the block contain? O silver O aluminum O iron O copper 7. Use the table to answer the question. Poles Facing Attract/Repel a. N-N b. S-S c. N-S d. S-N A student makes the data table above. What question is this student investigating? O Which of 4 magnets is strongest? O Which poles of magnets attract iron? O Which poles of 2 magnets attract or repel each other? O Which magnets attract or repel steel paper clips? 8. What happens to an electromagnet if you turn off the flow of electricity? O It no longer attracts iron. O It stops making electricity. O Its thermal energy increases. O It gets stronger.
9. How can you make a temporary magnet? O Pull an iron object across a permanent magnet. O Put a magnet on a refrigerator. O Place the S poles of two magnets next to each other. O Place the N pole of one magnet next to the S pole of another. 10. Which is NOT a use of magnets? O holding cabinets closed O generating electricity
O sorting paper from plastic O storing information on computer hard drives
11. Use the table to answer the question. Magnet Number of paper clips picked up A 3 B 17 C 11 D 8 The table shows the results from a test comparing magnet strengths. What can you conclude? O Magnet A is stronger than all the magnets. O Magnet B is stronger than Magnet C. O Magnet D is the weakest of the four magnets. O Magnet D is twice as strong as Magnet A. 12. Which of these is NOT attracted to the N pole of a bar magnet? O The S pole of another bar magnet. O An iron nail. O The S pole of a horseshoe magnet. O The N pole of a horseshoe magnet. Use the words from the word box to complete each sentence. Do not misspell the words.
attract repel
electromagnet temporary magnet
generator
magnet
magnetic
13. When you push something away, you repel it. 14. A machine that uses a magnet to make electricity is a generator. 15. A magnet attracts objects that contain iron. 16. This word means to pull toward. attract 17. A temporary magnet is an object that is magnetic for a brief period of time. 18. A kind of magnet that can be turned on and off is an electromagnet. 19. Magnetic objects will stick to most refrigerators. 20. All magnets have two ends called poles.
poles
O They make thermal energy.
O They contain copper.
O They have magnets inside them.
3. An electromagnet in a junkyard is used to lift ______________________. O plastic or glass O wood O steel or iron O magnets 4. Two bar magnets will attract if O They do not have N and S poles. O Their two S poles are facing.
O Their two N poles are facing. O The N pole of one faces the S pole of the other.
5. How can you tell if an object is a magnet? O See if it sticks to an iron block. O See if it sticks to a glass block. O See if it sticks to a plastic block. O See if it sticks to a rubber block. 6. A block of metal is attracted to a magnet. What must the block contain? O silver O aluminum O iron O copper 7. Use the table to answer the question. Poles Facing Attract/Repel a. N-N b. S-S c. N-S d. S-N A student makes the data table above. What question is this student investigating? O Which of 4 magnets is strongest? O Which poles of magnets attract iron? O Which poles of 2 magnets attract or repel each other? O Which magnets attract or repel steel paper clips? 8. What happens to an electromagnet if you turn off the flow of electricity? O It no longer attracts iron. O It stops making electricity. O Its thermal energy increases. O It gets stronger.
9. How can you make a temporary magnet? O Pull an iron object across a permanent magnet. O Put a magnet on a refrigerator. O Place the S poles of two magnets next to each other. O Place the N pole of one magnet next to the S pole of another. 10. Which is NOT a use of magnets? O holding cabinets closed O generating electricity
O sorting paper from plastic O storing information on computer hard drives
11. Use the table to answer the question. Magnet Number of paper clips picked up A 3 B 17 C 11 D 8 The table shows the results from a test comparing magnet strengths. What can you conclude? O Magnet A is stronger than all the magnets. O Magnet B is stronger than Magnet C. O Magnet D is the weakest of the four magnets. O Magnet D is twice as strong as Magnet A. 12. Which of these is NOT attracted to the N pole of a bar magnet? O The S pole of another bar magnet. O An iron nail. O The S pole of a horseshoe magnet. O The N pole of a horseshoe magnet. Use the words from the word box to complete each sentence. Do not misspell the words.
attract repel
electromagnet temporary magnet
generator
magnet
magnetic
poles
13. When you push something away, you ______________________________ it. 14. A machine that uses a magnet to make electricity is a _______________________________. 15. A ______________________________ attracts objects that contain iron. 16. This word means to pull toward. _________________________________ 17. A _______________________________ is an object that is magnetic for a brief period of time. 18. A kind of magnet that can be turned on and off is an ______________________________. 19. _____________________________ objects will stick to most refrigerators. 20. All magnets have two ends called _________________________ .
Name ANSWER KEY
Date ______________________
Magnets 1. Barry tested two magnets. Magnet A picked up 12 paper clips. Magnet B picked up 6 paper clips. How much stronger was Magnet A? O ten times stronger O two times stronger O same strength O half as strong 2. Samuel has some plastic letters that stick to the refrigerator door. What can he infer? O They are steel.
O They make thermal energy.
O They contain copper.
O They have magnets inside them.
3. An electromagnet in a junkyard is used to lift _______________________. O plastic or glass O wood O steel or iron O magnets 4. Two bar magnets will attract if O They do not have N and S poles. O Their two S poles are facing.
O Their two N poles are facing. O The N pole of one faces the S pole of the other.
5. How can you tell if an object is a magnet? O See if it sticks to an iron block. O See if it sticks to a glass block. O See if it sticks to a plastic block. O See if it sticks to a rubber block. 6. A block of metal is attracted to a magnet. What must the block contain? O silver O aluminum O iron O copper 7. Use the table to answer the question. Poles Facing Attract/Repel a. N-N b. S-S c. N-S d. S-N A student makes the data table above. What question is this student investigating? O Which of 4 magnets is strongest? O Which poles of magnets attract iron? O Which poles of 2 magnets attract or repel each other? O Which magnets attract or repel steel paper clips? 8. What happens to an electromagnet if you turn off the flow of electricity? O It no longer attracts iron. O It stops making electricity. O Its thermal energy increases. O It gets stronger.
9. How can you make a temporary magnet? O Pull an iron object across a permanent magnet. O Put a magnet on a refrigerator. O Place the S poles of two magnets next to each other. O Place the N pole of one magnet next to the S pole of another. 10. Which is NOT a use of magnets? O holding cabinets closed O generating electricity
O sorting paper from plastic O storing information on computer hard drives
11. Use the table to answer the question. Magnet Number of paper clips picked up A 3 B 17 C 11 D 8 The table shows the results from a test comparing magnet strengths. What can you conclude? O Magnet A is stronger than all the magnets. O Magnet B is stronger than Magnet C. O Magnet D is the weakest of the four magnets. O Magnet D is twice as strong as Magnet A. 12. Which of these is NOT attracted to the N pole of a bar magnet? O The S pole of another bar magnet. O An iron nail. O The S pole of a horseshoe magnet. O The N pole of a horseshoe magnet. Use the words from the word box to complete each sentence. Do not misspell the words.
attract repel
electromagnet temporary magnet
generator
magnet
magnetic
13. When you push something away, you repel it. 14. A machine that uses a magnet to make electricity is a generator. 15. A magnet attracts objects that contain iron. 16. This word means to pull toward. attract 17. A temporary magnet is an object that is magnetic for a brief period of time. 18. A kind of magnet that can be turned on and off is an electromagnet. 19. Magnetic objects will stick to most refrigerators. 20. All magnets have two ends called poles.
poles
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