Work out the power numbers

Exercise and reference answers

Questions

1. Answer

   746

   Question

   How many watts are in one horse-power?

2. Answer

   1000

   Question

   Watt hours used by a 100 W bulb over 10 hours?

3. Answer

   1869

   Question

   In which year did James Prescott Joule die?

Instructions

Type the number only.

Explanation