Work and Power
Your Teacher
Kinetic and Potential Energy
Various Trivia
Conservation of Energy
or
Energy in the World
100
Jack and Jill have the same mass. Jack climbs the hill in 4 minutes and Jill climbs the same hill in 3 minutes. Who had more power?
Jill, because she did the work faster!
100
The name of our student teacher (can be just the last).
What is is Mr. Pritchard?
100
Potential energy is the energy an object has because of its __________.
Position, height, or location
100
Cured meat from the back or sides of a pig.
What is BACON???
100
List three forms of energy BESIDES mechanical energy.
Answers vary but may include electromagnetic, electric, thermal, and chemical.
200
A 70 kg runner is completing a stadium workout running up the entire 30 meters in 40 seconds. What is his power? (Must include units!)
525 Watts
200
The school that Mr._______ will graduate from in June (hopefully).
What is the University of Victoria?
200
If the speed of a moving object is doubled, the kinetic energy of the object is ___________. a. doubled b. tripled c. quadrupled d. halved
Quadrupled
200
A delicious beverage made out of the roasted and ground beanlike seeds of a tropical shrub, that Mr. Pritchard needs very badly most mornings.
What is Coffee?
200
A Law stating that energy can neither be created nor destroyed, only transformed.
What is the Law of Conservation of Energy?
300
A toy car of mass 1.33 kg is pushed by a horizontal action force of 3 N. A 1-N frictional force also acts on the car. The car travels a distance of 4.5 m. How much work is done by the action force?
9J
300
Where Mr. ________ was born and raised, and still lives in the summer time.
What is the city of Williams Lake?
300
You move a 5 kg box from a shelf 1.5 m high to a shelf that is 4.2 m high. What is the change in the book’s potential energy?
It increases by 135 J.
300
A great place to vacation in the summertime, you reach it by two ferries, one from Buckley Bay to Denman Island, and one from Denman Island to here. Home of the famous Helliwell Provincial Park.
What is a Hornby Island?
300
The burning of Fossil Fuels makes up this amount of Canada's electricity production (+/- 10%)
What is about 87.1%?
400
What amount of work can a 100-W motor do in 25 seconds?
250 J of work
400
This is the instrument that Mr.________ plays.
What is the guitar?
400
A bicyclist increases her speed from 2.0 m/s to 5.0 m/s. The combined mass of the bicyclist and the bicycle is 80 kg. How much work did the bicy
840 J of work, W=KE
400
A ring.
What is in my pocket? From the Hobbit? Read a book.
400
This is equal to the total energy of a system after some event.
What is the total energy of a system before an event?
500
Mr. Carmichael hit a volleyball giving it horizontal Kinetic Energy equal to 10,000J. How much is the maximum work will the volleyball can do horizontally when it hits his opponent square in the nose?
10, 000 J by the W-E thm (if the ball stops dead after hitting the person).
500
The sport that Mr._______ plays (the most).
What is rugby?
500
Patrick drops a water balloon directly over Will's head from the top of the school, about 16 metres. Will steps out of theway at the last second, how fast is the water balloon going when it hits the ground?
W=change in energy , all PE became KE (relative to the ground) --> mgh = (1/2)m(v^2) ---->gh = (1/2)(v^2) --> (v^2) = 2gh The balloon is moving at ~12.5 m/s^2
500
An amazing local breakfast restaurant located near the intersection of Johnson Street and Government Street. Also the name of a song remade for the movie musical Moulin Rouge (2001).
What is Lady Marmalade?
500
Leo is playing with his hot wheels and rolls a .1kg car down a 10m high ramp. At the bottom of the ramp the car is going 10m/s. How much heat was generated by friction?
4.81 Joules of Heat was generated.
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