Other than the Wooden Roller Coaster, many of the rides at PNE, including Hellevator, manipulate the conversion between potential and kinetic energy to give riders the thrills.
Here is the link to today's notes:
https://docs.google.com/document/d/14JGjXVBQhcR9ZSZ8h1WjHUFFBFYQz3rI9pD96Sf3WKg/edit?usp=sharing
Here are the Plicker questions of today:
How much more energy do you have relative to yourself on the first floor? Assuming you are 50 kg in mass and the height difference is 3.0 meters.
A.1470 J
B.490 J
C.150 J
D.29 J
Snow is not on the ground often in Vancouver, but snow can be found on the mountains right next to us. The Lions are a set of peaks from the north shore, visible from downtown. They are about 1600 meters above sea level. For 1 kg of snow on top of the Lions, how much more potential energy do they have, as compared to at sea level?
A.9.8 J
B.1698 J
C.7840 J
D.15680 J
Grouse mountain is 1127 meters above sea level, and the Grouse grind's base is 274 meters above sea level. How much energy do you (50kg) gain in potential energy by hiking the Grouse Grind?
A.4.3*10^4 J
B.5.6*10^4 J
C.4.2*10^5 J
D.5.5*10^5 J
Mark Watney, the protagonist in the movie the Martian, was threw into the air by a broken antenna on Mars. Mars has a smaller gravity (3.7 m/s^2) than the Earth. If his total mass, including his suit, is 100 kg, and he was threw 20 meters into the air, how much potential energy did he gain?
A.2000 J
B.3700 J
C.7400 J
D.19600 J
It took you 1 hour to hike up Grouse Mountain. Supposed that you have gained 420000 J of potential energy during this time. What is your average power during the hike?
A.117 W
B.7000 W
C.8400 W
D.420000 W
Enjoy your weekend!
Mr. T
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