PHYSICS 11-30-12 Power & the Horsepower Lab

PHYSICS: Great job on the horsepower lab. Lotta noise – I’m thinking some of you took out some of your physics phrustrations on the stairs! Post your own horsepower numbers here. Did you notice that not all of the stairs are the same height? BTW: 1 Hp = 746 W and 1 kg = 2.2 lb. Post your lab results here. Who has the most power? And why?

Here’s the lecture from today on power (or rather from last year because I forgot to turn on the mic!). Now go forth and conquer the power problems! Power Worksheet

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17 thoughts on “PHYSICS 11-30-12 Power & the Horsepower Lab”

1. James Y P5 says:

Will T’s power was 220.566 watts (0.296 Horsepower). My power was 301.889 watts (0.4047 Horsepower)

2. Jenny L P5 says:

Kever:
Power- 109.819 watts
Horse power- 0.14721 hp

Mine:
Power- 110.787 watts
Horse power- 0.14851 hp

• Ms. Skinner says:

Jenny – You have more hp than Kever? Are you sure?

• Jenny L P5 says:

i walked up the stairs faster than kever, and that the calculation kever gave me, and i claculated my own

3. Kelsey D P5 says:

My power was 298.93 Watts, and my horspeower was 0.401 hp.

4. Hunter G P5 says:

Hunter:
Power – 149.456W
Horse Power – 0.20034 HP

Katie:
Power – 187.346W
Horse Power – 0.25113HP

• Katie S P5 says:

Thank you so much for posting this for me Hunter. Friday night was crazy with autditions and the game

5. Ben W P5 says:

Power: 495.04 W
Horse power: 0.66 HP

• Ben W P5 says:

495* W
0.664* HP

6. Wil H P5 says:

Watts: 261w
Horse Power: 0.350hp

7. Claire S P5 says:

Sorry it took me so long to post this guys! I have 0.23 hp
and 168.9 W

8. Darby T P5 says:

power = 478 watts
horsepower = 0.666hp

9. Josh C P5 says:

Sorry, I posted this in the wrong place. Here is our watts and horsepower.

Wil- 230W and 0.309HP

Josh- 312W and 0.420HP

10. Ben W P5 says:

power: 492W
HP: 0.664HP

• Ben W P5 says:

power: 493W*
HP: 0.688 HP*

11. Kever L P5 says:

Sorry guys, I guess I calculated my power wrong. I actually had 0.298 HP.

12. Jeremy S P5 says:

372.85 W
hP: 0.500