Period 7 Work and Power Definition and Problems by Thomas E Clark https://padlet.com/tec430/uojpvcg1my19 1. Define work, the formula and how Force relates to displacement? (2) Define power and the formula? Problems: 5. How much work does an elephant do while moving a circus wagon 20meters with a pulling force of 200N? 6. If it takes 5 seconds for you to do 1000J of work, what is your power output? 7. A 900N mountain climber scales a 100m cliff. How much work is done by the mountain climber? 8. A small motor does 4000J of work in 20 seconds. What is the power of the motor in watts? 9. A woman runs a kilometer using a force of 210N and a power output of 500W. How long in minutes does it take this woman to complete 1 kilometer? 10. A deflated hot-air balloon weighs a total of 8000 N. Filled with hot air, the balloon rises to a height of 1000 m. How much work is accomplished by the hot air? 11. A rope is thrown over a beam, and one end is tied to a 300 N bundle of lumber. You pull the free end of the rope 2 m with a force of 400 N to lift the lumber off the ground. How much work have you done? en-us 2017-01-23 16:39:17 UTC 2025-10-19 01:02:17 UTC hello@padlet.com Sakshi, Diana and Catlan https://padlet.com/tec430/uojpvcg1my19/wish/148892739 1. Work is when a force acts upon an object that causes the object's displacement. The formula is W=F*D. Displacement is caused by the force  and when there is force that causes displacement it is classified as work. 
2. Power is the rate of doing work. P=W/T
5. 200*20=4000J
6. 1000/5=200 W
7.  900N*100m=90,000J
8. 4000/20=200W
9.  210N *1000m = 21000J/500W=420 seconds/60= 7 minutes
10. 8000N * 1000m= 8 million Joules 
11. 400N-300N=100N
100N*2=200J]]> 2017-01-23 22:59:56 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148892739 Chisondi https://padlet.com/tec430/uojpvcg1my19/wish/148892904 1.) Work is calculated by multiplying the force by the amount of an object. It is when a force moves an object a certain distance.
2.) Power is the rate of doing work. It is measured in Joules per second. Power= Work/Time= (Force*Distance)/Time.
3.) W=F*D= 200N*20meters=4000Joules
4.)P=1000J/5s= 200J/s
5.) W=F*D=900*100= 


]]> 2017-01-23 23:01:54 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148892904 Sitara https://padlet.com/tec430/uojpvcg1my19/wish/148893050 1) Work is when the force acts upon an object and causes the object's displacement. 
2) Power= force x velocity
3) W= 20 M X 200 N 
Work=4000J
4) P= (5 sec)/(1000 J) 
P=200 J per second
5) W=(900 N)(100m)
W=90000 J
6) P= (4000J) / (20 sec) 
P=200 watts
7) 500W = 210 N x V
V= 420seconds
8) W=8000N x 1000m
W= 8million J
9) W= (100 N)( 2 m)
W= 200 J

]]> 2017-01-23 23:03:50 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148893050 Bonny, Hiwot, Yohe and Tamera https://padlet.com/tec430/uojpvcg1my19/wish/148893064 1) Work: when a force acts upon an object to cause a displacement of the object. W= F x d. When force increases, the work of an object increases.
2) Power is the rate at which work is done. P= W/t.. The metric unit for power is watt.
3) 20 meters x 200 newtons= 4000 J
4) 1000 J/ 5 sec= 200 watts
5) 900 newtons x 100 meters= 90,000 J
6) 4000 J/ 20 sec= 200 watts
7) (210 N x 1000 m)/ t= 500
t= 420 seconds= 7 minutes
8) W= 8000 N x 1000 m= 8000000 J
9) 100 N x 2 m= 200 J]]> 2017-01-23 23:04:05 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148893064 Caitlin Flores and Alex Ruiz https://padlet.com/tec430/uojpvcg1my19/wish/148893077 1. Work is done when a force that is applied to an object that moves that object. The formula for this is (W= F * d).  They are related because force and displacement are indirectly proportional while work and force are directly proportional. 
2. Power is the rate of doing work. It is the amount of energy consumed per unit time. Having no direction, it is a scalar quantity. P= W/T
3. 20m x 2000N = 4000 J
4. 1000J / 5  = 200 J/S
5. 900N x 100m = 90,000 J
6. 4000J / 20s = 200 J/S
7. 210N x 500W =]]> 2017-01-23 23:04:17 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148893077 Komal https://padlet.com/tec430/uojpvcg1my19/wish/148893502 1. Work is when a force applied to an object moves that object. W = F x d. 
2. Power is the rate at which work is done.   Power = work/time.
5. 20 m x 200 N = 4000 J
6. 1000 J / 5 sec = 200 watts
7. 900 N x 100 m = 90000 J
8. 4000 J / 20 sec = 200 watts
9. (210 N x 1000 m)/500=t
t = 420 sec = 7 minutes
10. 8000 N x 1000 m = 8000000 J
11. 100 N x 2 m = 200 J]]> 2017-01-23 23:10:06 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148893502 Jose Ibarra https://padlet.com/tec430/uojpvcg1my19/wish/148893656 1)Work is the force that acts on an object that gives it its displacement. The formula for this would be force* displacement* cosine and displacement also meaning distance. 
2)Change in joules over time.
Power=work/time
power and velocity are same.
3)W=F*d=
200N*20m=4000J
4 )1000J/5sec= 200W
5)900N*100m=90,000J
6)4000J/20sec=200W
7)210N=500W 
T=W/P
210N*1000M/500=420Sec
420Sec=7Min


]]> 2017-01-23 23:12:26 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148893656 Rachel Z maragaw https://padlet.com/tec430/uojpvcg1my19/wish/148894368
  • Work is defined as a measure of energy transfer when an object is moved over a distance by an external force which is applied in the direction of the displacement. Formula: W=Force x Distance (measured in J)
  • Power is the rate of doing work    Formula: P = Force x Velocity (measured in J per second aka Watts)
  • W=20m x 200N         Work=4000J
  • P= (5 sec) / (1000J)     P=200 J per second (watts)
  • W= (900N)(100m)      W=90000J
  • P= (4000J) / (20 sec)    P=200 watts
  • 500W=210N x V   (210 x 1000) / 500    V=420 seconds = 7 minutes
  • W= 8000N x 1000m     W=8 million J
  • W = 400N - 300N = (100N)(2m)     W=200J
    • ]]>     2017-01-23 23:23:57 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148894368     https://padlet.com/tec430/uojpvcg1my19/wish/148895807 Mr. Clark?????
    Yes
    We love physics :)]]>     2017-01-23 23:45:21 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148895807     Funny tec430 https://padlet.com/tec430/uojpvcg1my19/wish/148896227 2017-01-23 23:51:05 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148896227 Jose Ibarra(2) https://padlet.com/tec430/uojpvcg1my19/wish/148913958 8)8000J*1000M
    8,000,000W
    9)400N-300N*2m=200J]]>     2017-01-24 04:06:34 UTC https://padlet.com/tec430/uojpvcg1my19/wish/148913958     Alex and Caitlin https://padlet.com/tec430/uojpvcg1my19/wish/149791497 7. 900 N x 100 m = 90,000J
    8. 4000 / 20 = 200W
    9. 210N x 1000 m = 21000J
    21000J / 500 W = 420 sec / 60 = 7 min 
    10. 800N x 1000 m = 8 mill J
    11. 400N -300N = 100N 
    100N x 2m = 200J ]]>     2017-01-27 01:43:18 UTC https://padlet.com/tec430/uojpvcg1my19/wish/149791497