Fill the gaps on the laws of motion

Exercise and reference answers

Missing parts

1. Answer

   external

   Choices

   1. external
   2. internal
   3. chemical

2. Answer

   inertia

   Choices

   1. inertia
   2. gravity
   3. buoyancy

3. Answer

   zero

   Choices

   1. zero
   2. one
   3. two

4. Answer

   pairs

   Choices

   1. pairs
   2. threes
   3. fours

Complete the statement

Aristotle held that motion needs an {0} force. Galileo instead reached the law of {1}. Zero net force gives an acceleration of {2}. Internal forces cancel in {3}.

Instructions

Tap a word to drop it into the empty slot.

Explanation