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Questions and Answers
What is the relationship between torque and horsepower?
What is the relationship between torque and horsepower?
- Horsepower is directly proportional to torque
- Torque determines the strength of rotation, while horsepower is the rate of torque application (correct)
- Torque and horsepower are independent of each other
- Horsepower determines the strength of rotation, while torque is the rate of torque application
How can gears affect torque and speed in a motor system?
How can gears affect torque and speed in a motor system?
- Gears have no impact on torque and speed
- Gears can manipulate speed but not torque
- Gears can manipulate torque and speed by changing gear size (correct)
- Gears can only affect speed, not torque
What happens to rotational speed when torque is increased through gears?
What happens to rotational speed when torque is increased through gears?
- Rotational speed remains the same
- Rotational speed decreases (correct)
- Rotational speed increases
- Rotational speed fluctuates
Why are gear ratios in car transmissions designed to balance speed and torque needs?
Why are gear ratios in car transmissions designed to balance speed and torque needs?
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How does increasing gear size affect torque output?
How does increasing gear size affect torque output?
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Study Notes
- Torque is a twisting force that determines the strength of rotation in a motor or engine.
- Horsepower is the rate of torque application, calculated as torque times rpm.
- Gears can be used to manipulate torque and speed in a motor system.
- By connecting gears with different numbers of teeth, the gear ratio can be calculated to manipulate torque.
- Increasing the gear size increases the torque output due to increased leverage provided by the gear.
- However, increasing torque through gears comes at a cost of decreased rotational speed.
- Gear ratios in car transmissions are designed to balance speed and torque needs for different driving situations.
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