Kilojoule (kJ)1000 j= 1 kJA piece of buttered toast contains about 315 kJ of energy. With that energy you could:

• Jog for 6 min.

• Bicycle for 10 min

• Sleep for 1.5 hrs

• Run a car at 50 mph for 7 seconds

• Light a 60 watt light bulb for 1.5 hrs

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