Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Watt
   2. Joule
   3. Horse-power
   4. Kilowatt

   Odd item

   Joule

2. Items

   1. Bulb
   2. Heater
   3. Fridge
   4. Collision

   Odd item

   Collision

3. Items

   1. Scalar
   2. Work
   3. Energy
   4. Vector

   Odd item

   Vector

Instructions

Tap the item that does not belong with the rest.

Explanation