Horsepower Assignment

Front

What is the SI unit of power?

Back

Watt

Front

If a lawnmower is rated at 3 horsepower, how much power does it produce in watts?

Back

2,238 W

Front

A horse pulls a cart with a force of 500 N over a distance of 10 m in 5 seconds. What is the horse’s power output?

Back

1,000 W

Front

What is the value of one horsepower in watts?

Back

746 W

Front

Why might a person’s power output vary during exercise?

Back

Differences in effort and muscle fatigue

Front

Define horsepower.

Back

A unit of power equal to 746 watts.

Front

What is the formula for calculating power?

Back

Power (P) = Work (W) / Time (t) or P = Force (F) x Velocity (v).

Front

Convert 5 horsepower to watts.

Back

5 horsepower = 3,730 W.

Front

What is the relationship between work and power?

Back

Power is the rate at which work is done.

Front

How many watts are in 10 horsepower?

Back

10 horsepower = 7,460 W.