Complete the centripetal rule

Exercise and reference answers

Missing parts

1. Answer

   v squared over r

   Choices

   1. v squared over r
   2. r over v squared
   3. v over r squared

2. Answer

   toward

   Choices

   1. away from
   2. toward
   3. along

3. Answer

   four times as big

   Choices

   1. twice as big
   2. four times as big
   3. half as big

Complete the statement

Centripetal acceleration is {0}, it always points {1} the centre, and doubling the speed at one radius makes it {2}.

Instructions

Tap a phrase for each blank to complete the rule for centripetal acceleration.

Explanation