Fazzy+and+Caitlin+and+Tiffany

Work and Power
**Work** ~Definition- the quantity of force times distance; the result of machines preforming taks. ~Applying a force to an object is doing work. ~Carrying is not work because you are not applying a force. ~Work is measured in joules. ~One joule is equal to one newton of force times one meter of distance.

Formula: W=Fd ~ The W stands for work and is measured in joules (J). ~ The F stands for force and is measured in newtons (N). ~ The d stands for distance and is measured in meters (m).

Problems for Work ~Definition- the rate at which work is done. ~Watts are named after James Watt. ~One watt is equal to one joule of work done in one second. ~Power can be generated in many differnt ways. ~Power is measured in watts.
 * 1) 1~How much work is the dog doing if its pulling a 10kg box for 20 meters? CLICK HERE FOR ANSWERS
 * 2) 2~Chanel's mom told her to carry the box outside and to put it in her car. the box is 78kg and the distance from her house to her car is 15 meters. How much work is Chanel doing? CLICK HERE FOR ANSWERS
 * Power**

Formula: P=w/t ~The P stands for power and is measured in watts (W). ~The w stands for work and is measured in joules (J). ~The t stands for time and is measured in seconds (sec).

Problems for Power
 * 1) 1~How much power does Joe have if he is doing 200 joules of work and he is doing it in 25 seconds? CLICK HERE FOR ANSWERS
 * 2) 2~Danny is doing 8 joules of work in 4 seconds and Randy is doing 40 joules of work in 10 seconds. Who is doing more work, Danny or Randy? CLICK HERE FOR ANSWERS

Specific Heat
~Definition: the amount of heat required to raise the temperature of one gram of a substance by one degree celcius. ~Some objects experience a greater change in tempreature than others even when the amount of heat and mass are the same. ~High Specific Heat: needs to gain a lot of energy to raise its temperature and needs to lose a lot of energy to lower its temperature.

Specific Heat:
 * Substance || Specific Heat (cal/gC) ||
 * Aluminum || 0.22 ||
 * Copper || 0.09 ||
 * Glass || 0.20 ||
 * Iron || 0.11 ||
 * Fresh Water || 1.00 ||
 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS', cursive;">Gold || <span style="background-color: #ffffff; font-family: 'Comic Sans MS', cursive;">0.03 ||
 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS', cursive;">Carbon || <span style="background-color: #ffffff; font-family: 'Comic Sans MS', cursive;">0.17 ||

<span style="background-color: #40ff00; font-family: 'Comic Sans MS', cursive;"> ~Which substance would need the most energy to raise its temperature by 1 degree Celcius? CLICK HERE FOR ANSWERS ~Which substance would need the least energy to raise its teperature by 1 degree Celcius? CLICK HERE FOR ANSWERS ~Which substance would increase in temperature {heat up} the quickest? CLICK HERE FOR ANSWERS ~Which substance would heat up the slowest? CLICK HERE FOR ANSWERS ~Which substance would cool down the slowest? CLICK HERE FOR ANSWERS ~When people go to the beach, the sand is hot and the water is cold. Which has the highest specific heat? CLICK HERE FOR ANSWERS

<span style="font-family: 'Comic Sans MS', cursive; color: #c723c7;">SOURCE: ~ALL OF THE INFORMATION ON THIS PAGE WAS AQUIRED FROM OUR IPC NOTES~