Questions 1-4
1.a) What is meant by "Doing work" is using a force to move an object.
b) A machine is anything which makes it easier to do work.
2.a) When pushing a mower you are doing work since you are pushing something , doing a movement and using force with some distance.
b) Using some force and distance you are doing work while brushing your teeth
c) In cycling you are doing work since your leg has to paddle and move then it is part of work.
d) Reading page it not work , the only thing that i have to do to read this page is look at it with my eyes.
3.When we work we use up energy which is given to us be food.
4. Spanners , Pliers and can openers are meachines because all of then has the action of a lever in it.
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