When you lift a 12. ounce beverage can from the table top to your mouth, you do approximately how much work?
A) 1 Calorie
B) 1 erg
C) 1 Watt
D) 1 Kw-h
E) 1 Joule

Question

Quizplus · Accepted Answer

Work is defined as the force applied to an object times the distance the object moves in the direction of the force. The unit of work in the International System of Units (SI) is the Joule (J). Lifting a 12-ounce beverage can from the table to your mouth involves moving the can against the force of gravity over a certain distance, which requires work measured in Joules, not in Calories (energy content of food), ergs (a much smaller unit of energy), Watts (a unit of power, or energy per time), or kilowatt-hours (a unit of energy typically used for electricity consumption).

When You Lift a 12