x Turn on thread page Beta
 You are Here: Home

# easy question to all the physicsy peoples watch

1. how would you convert 1.5 x 10 ^ - 15 cm into metres? dont just give the answer explain what rule you applied!
2. (Original post by Hunny123)
how would you convert 1.5 x 10 ^ - 15 cm into metres? dont just give the answer explain what rule you applied!
well 100 cm = 1m, so
1 cm = 10^(-2)m, so
1.5*10^(-15) cm = 1.5*10^(-15) * 10^(-2) = 1.5*10^(-17) m
3. Mm I find the exponential form for expressing units help. Always convert things in to metres, and remember the prefixes - 1cm = 10^-2m, 1um = 10^-6m etc. If you're proficient with a calculator this is a very easy method.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: June 27, 2004
Today on TSR

### Negatives of studying at Oxbridge

What are the downsides?

### Nicer uni or better course?

Poll
Useful resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE