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  • 2 weeks ago
It explains the laws of nature, including motion, energy, force, and matter.
Everything around us—from light to gravity—follows the principles of physics.
Physics helps us understand modern technology like electricity, smartphones, and space travel.
It is not just a subject, but a way to observe and question the world logically.
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00:00What is the difference between speed and velocity?
00:04Speed has no direction. Velocity includes direction.
00:08Correct.
00:09What does Newton's second law state?
00:12Force equals mass times acceleration.
00:16Correct.
00:17What happens to kinetic energy when speed doubles?
00:20It becomes four times greater.
00:24Correct.
00:25What is the relationship between voltage, current, and resistance?
00:29Voltage equals current times resistance.
00:32Correct.
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