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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