1001 Space Earth Nature History Human World Science and Technology Chemistry Materials Force and Energy Heat and Light Electricity and Magnetism Industry Machines Electronics and Computers Cars and Trucks Railways Ships Aircraft Fishing and Agriculture Undersea Exploration

Choose a Page:What is energy?What is a force?Why is the Sun's energy so important?Why are forces important in sports?What is friction?How is sound energy measured?What is nuclear energy?Which forces act on a jet aircraft?What is gravity?Can one form of energy be changed ...*How are force and energy measured?*What is the difference between mas...How does a turbine work? How are force and energy measured? Force is measured in newtons. A newton is the force that gives 1 kg an acceleration of 1 metre per second per second. Energy is measured in joules. A joule is the work done by a 1-newton force moving 1 metre.   Previous: Back Book: 1001 Section: Science and Technology Chapter: Force and Energy