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1.7 Energy And Effeciency (Year 10 Physics)
The following test is covering '1.7 Energy And Effeciency' for Year 10 Physics.Incorrect: 0
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What is the correct equation for calculating efficiency?
When raising an object, what energy store are muscles transferring energy to?
Which of these methods increases efficiency by reducing energy wastage due to air resistance?
Why does every mechanical system generate heat?
What happens to lost energy in an inefficient machine?
Why is lubrication useful in increasing the efficiency of an engine?
What is the maximum possible efficiency percentage of any energy converting device?