🔍 Key Concepts
• Definition of horsepower in engineering terms
• Relationship between horsepower and watts/kilowatts
• Physical definition of horsepower in terms of force, distance, and time
💭 Think About
• Convert between watts and kilowatts to compare the numerical values in choices A and B. How many watts are in one kilowatt?
• Think about the historical definition of horsepower: it was based on lifting a certain weight through a certain distance in a certain time. Which option reflects that idea?
• If more than one option correctly describes one horsepower, what does that suggest about choice D?
✅ Before You Answer
• Verify the exact numerical conversion: 1 horsepower in watts
• Confirm: 1 kilowatt = 1000 watts, then compare that to 1 horsepower
• Check the classic mechanical definition: can you express horsepower as (pounds × feet) per second or per minute, and which option matches that?