Skip to content

Course home

Sign up

8 Energy – forces doing work

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081
Question 43

A motorised winch drags boats on wheeled cradles across a level boatyard at steady speed. The winch has the same total input power and the same efficiency for two pulls. For pull B, the steady pulling force is half that for pull A, but the boat is dragged three times as far. Which statement correctly describes the useful work done and the time taken for pull B, compared with pull A?

[1]
A

The useful work is greater and the time taken is longer.

B

The useful work is greater and the time taken is shorter.

C

The useful work is smaller and the time taken is longer.

D

The useful work is smaller and the time taken is shorter.

Markscheme

8 Energy – forces doing work Questions

  1. GCSE
  2. /Physics
  3. /8 Energy – forces doing work

Question bank