<p>I used mechanical pencil on Calc. AB (they said we could use No.2 penicl or a pen), and I was wondering if it's ok. are they gonna scan it? And if so, i guess mechanical pencil's ok too, right?</p>
<p>Also, on AP Phys. B, can we also use mech pencil?</p>
<p>yep, it works because they dont scan it, someone reads it</p>
<p>Also, mechanical pencil's use number two graphite. It usually says it on the graphite cases. Is it graphite btw? People always say but I thought it was some some composite of graphite and something else.</p>
<p>I've heard that you shouldn't use mechanical penciles on scan tron tests, anyone know if that is true?</p>
<p>well it takes longer to fill in the bubbles b/c there is less surface area. also you run the risk of damaging your sheet with mech penciles.</p>
<p>i've used mechanical pencils on all scantron tests in school, my SATs, several SAT II's, and 3 AP's. Just check the refill case to make sure you are using #2. never had a problem.</p>