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Energy in food

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-PS3-1, NGSS.MS-LS1-7 · England: KS3 Physics: Energy (comparing energy values of foods)

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Score/ 16

  1. Question 1

    Ben uses about 20 kJ per minute when running. How much energy is used in 10 minutes, in kJ?

    AnswerkJ

  2. Question 2

    What happens if you regularly take in more food energy than you use?

    • A. Nothing happens
    • B. It disappears
    • C. The extra is stored, mostly as fat
    • D. It turns into muscle automatically

  3. Question 3

    A food label says pasta contains 2000 kJ per 100 g. How much energy is in a 200 g portion, in kJ?

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  4. Question 4

    Hana uses about 30 kJ per minute when swimming. How much energy is used in 10 minutes, in kJ?

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  5. Question 5

    Food energy is measured in…

    • A. newtons (N)
    • B. kilograms (kg)
    • C. kilometres (km)
    • D. kilojoules (kJ) or kilocalories (kcal)

  6. Question 6

    A food label says pasta contains 1600 kJ per 100 g. How much energy is in a 50 g portion, in kJ?

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  7. Question 7

    Maya uses about 50 kJ per minute when dancing. How much energy is used in 20 minutes, in kJ?

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  8. Question 8

    Which nutrient stores the most energy per gram?

    • A. carbohydrate
    • B. water
    • C. fat
    • D. protein

  9. Question 9

    A food label says rice contains 250 kJ per 100 g. How much energy is in a 150 g portion, in kJ?

    AnswerkJ

  10. Question 10

    Kofi uses about 50 kJ per minute when dancing. How much energy is used in 20 minutes, in kJ?

    AnswerkJ

  11. Question 11

    Which nutrient stores the most energy per gram?

    • A. protein
    • B. water
    • C. fat
    • D. carbohydrate

  12. Question 12

    A food label says rice contains 380 kJ per 100 g. How much energy is in a 250 g portion, in kJ?

    AnswerkJ

  13. Question 13

    Mei uses about 25 kJ per minute when cycling. How much energy is used in 20 minutes, in kJ?

    AnswerkJ

  14. Question 14

    Which nutrient stores the most energy per gram?

    • A. carbohydrate
    • B. water
    • C. fat
    • D. protein

  15. Question 15

    A food label says rice contains 1600 kJ per 100 g. How much energy is in a 150 g portion, in kJ?

    AnswerkJ

  16. Question 16

    Amara uses about 30 kJ per minute when running. How much energy is used in 30 minutes, in kJ?

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Answer key: Energy in food

  1. 1. 200 kJ

  2. 2. C. The extra is stored, mostly as fat

  3. 3. 4000 kJ

  4. 4. 300 kJ

  5. 5. D. kilojoules (kJ) or kilocalories (kcal)

  6. 6. 800 kJ

  7. 7. 1000 kJ

  8. 8. C. fat

  9. 9. 375 kJ

  10. 10. 1000 kJ

  11. 11. C. fat

  12. 12. 950 kJ

  13. 13. 500 kJ

  14. 14. C. fat

  15. 15. 2400 kJ

  16. 16. 900 kJ