Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
1
...
Use units to prove that equations are invalid
...
Speed - measured in meters per second (m / s)
...
─────────────────────────────────────────────────────────────────────────────────────────
A dimensionally consistent equation naturally takes the same form in all possible systems of units
...
Consistent
Topic 1 Page 2
Inconsistent
Scientific notation & metric multipliers
Be able to:
• Write numbers in scientific notation
• Write SI units in the correct format
─────────────────────────────────────────────────────────────────────────────────────────
Denominator units are written in the numerator with negative exponents
...
g
...
5 m / s2 is written 1
...
A digital measuring device, on the other hand, is only “good” to the
least significant digit’s place
...
Topic 1 Page 4
Orders of magnitude
A number rounded to the nearest power of 10 is called an order of
magnitude
...
• 10 50 kilograms / 10 -30 kilograms = 10 80
...
• The answer is 80 orders of magnitude
...
2 – Uncertainties and errors
Topic 1 Page 7
Random and systematic errors
Random error is error due to the recorder, rather than the instrument used for the measurement
...
• Different people may measure the same line slightly differently
...
”
• A voltmeter might have a zero offset error
...
─────────────────────────────────────────────────────────────────────────────────────────
The precision of a measurement is how close a number of measurements of the same quantity agree
with each other
...
It ma