Work, Energy & Power
1. The first column in the table gives four examples of work being done. The second column gives more detail of the action.
Which row is not correct?
Example | Detail | |
A | a diver dives from a diving board into a swimming pool | work is done by the diver against gravity as she falls |
B | a person pushes a car along a level road | work is done by the person against friction |
C | an electron is accelerated towards a positively–charged plate | work is done on the electron by the electric field of the plate |
D | a piston is pushed outwards as a gas expands | work is done on the atmosphere by the gas |
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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