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PowerPoint 152

PowerPoint 152. Energy. Sources of Energy. Energy. Food is the body’s source of energy. Food provides energy. We need energy to grow, be active and maintain health. Different types of food provide different amounts of energy. Energy is measured in kilojoules – kJ.

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PowerPoint 152

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  1. PowerPoint 152 Energy

  2. Sources of Energy

  3. Energy Food is the body’s source of energy. Food provides energy. We need energy to grow, be active and maintain health. Different types of food provide different amounts of energy. Energy is measured in kilojoules – kJ.

  4. 100g of these foods provide … 195 kJ 922 kJ 73 kJ 914 kJ 3059 kJ

  5. Which food provides the least energy? 587 kJ 891 kJ 627 kJ 158 kJ All foods per 100g.

  6. Which food provides the most energy? 199 kJ 3059 kJ 291 kJ 1725 kJ All foods per 100g.

  7. Uses of energy Different activities use different amounts of energy. Which activity uses the most energy? cooking swimming 85kJ/15 mins 357kJ/15mins walking football 114kJ/15 mins 196 kJ/15 mins

  8. Uses of energy Different activities use different amounts of energy. Which activity uses the least energy? sleeping 35kJ/15 mins gymnastics horse riding standing 153kJ/15mins 144kJ/15 mins 42kJ/15 mins

  9. Portions Different amounts of food provide different amounts of energy. The amount of food is known as a portion. We eat different amounts of different types of food. Margarine Orange Per 100g = 3039kJ On toast (5g) = 152kJ Per 100g = 158kJ Small (120g) = 190kJ

  10. Foods providing 400kJ of energy Wholemeal bread – 44g Jacket potato -69g Milk -205 ml Ham - 35g Tomatoes -548g Orange -253g Egg – 65g Butter -13g

  11. Uses of 400kJ Swimming -about 24 minutes Cycling -about 17 minutes Sitting -about 96 minutes Running -about 17 minutes Sleeping -about 116 minutes Walking -about 31 minutes

  12. Energy needs are different Different people need different amounts of energy. The amount of energy they need depends on their age, job, how active they are and their health. baby girl 9 year old boy 36 year old man 65 year old woman 8,240 kJ/day 7,960 kJ/day 2,160 kJ/day 10,600 kJ/day

  13. For further information, go to: www.foodafactoflife.org.uk

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