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What is Energy transfer?
How is energy passed on from one object to another?
When you kick a ball, what energy is transferred from your foot to the ball?
What are the energy changes that happen when a glass falls off a table?
How does a solar fan work?
What does the law of conservation of energy state?
If energy is never lost, were do you think it is gone?
What is the supplied, useful and wasted energy of the following objects
(Toaster)
Electric cooker
Electric toothbrush
When you push a trolley, what happens to the kinetic energy that is transferred to it?
What is energy efficiency?
How do we know if an object is energy efficient or inefficient?
What are renewable energy sources?
Why is it that only small amount of the original chemical potential energy of a fossil fuel is converted into the useful energy needed?
Which of the following is an efficient energy conversion -:
Driving a car
or
Riding a bike
What is the difference between useful and wasted energy?
What is the input and output of the following objects -:
(CAR)
(iPod)
What are some energy conversions?
