(URGENT) AP Physics need to carry units throughout calculation?

Test Preparation AP Sciences
1

<p>Dear all, I am attending the exam 12 hours later, well I am nearly 24 hours earlier than you guys living in the US:(
So, can you tell me whether I need to keep that units in calculation?
Say, when I use the Gravitation constant, do I state 6.67xxxx or with that kg, m, s, etc unit?</p>

<p>Thanks!</p>

<p>By the way I am NERVOUS as the rotational part (Phys C Mech) is DIFFICULT:(</p>

2

<p>Just include units in your final answer.</p>

3

<p>I usually carry them through the whole calculation, its an easy way to make sure that you’re correct. If you find out that the units are incorrect after you carry them through, you know you messed up, whereas if you just tack them on at the end, you don’t really know.</p>