Measurement

Question 1

Vernier calliper

Answer 1

Used to measure the distances of certain objects
Two scales: fixed scale, highest scale

Fixed scale: to measure whole numbers
Highest scale: decimal numbers
To work out the distance of an object you add the fixed scale and the highest scale 3 + 0.9

Question 2

Micrometer screw gauge

Answer 2

More accurate (0.01mm)
Also has two scales (fixed and highest)
Works the same way as the vernier calliper
However there are errors
Lengths of certain objects

Question 3

Pendulum

Answer 3

When its not moving its at rest
Make sure the the string is perpendicular
Slighty swing the pendulum
Using a stop watch record (eg: 10 oscillations)
Divide the number of swings by the time taken

Oscillations/over time taken = one pendulum

Question 4

Volume

Answer 4

Measuring cylinder
Meniscus, the curve of the water, remember to measure the bottom

Question 5

Time

Answer 5

Analogue watch
Digital stop watch