Fix the false claims about work

Exercise and reference answers

Questions

1. Statement parts

   1. A person holding
   2. a still briefcase
   3. does
   4. positive work

   Correction

   no work at all

   Incorrect part

   positive work

2. Statement parts

   1. Carrying a case
   2. on level ground
   3. does work
   4. on the case

   Correction

   does no work

   Incorrect part

   does work

3. Statement parts

   1. Work equals force
   2. times distance
   3. times the sine
   4. of the angle

   Correction

   times the cosine

   Incorrect part

   times the sine

4. Statement parts

   1. Lowering a case
   2. into a generator
   3. does
   4. positive work on it

   Correction

   negative work on it

   Incorrect part

   positive work on it

Instructions

Tap the single word or phrase in each line about work that makes it wrong.

Explanation