micrometre screw gauge

Question 1

How to make sure a micrometer screw gauge is accurate

Answer 1

Make sure the zeroes line up for accuracy

Remember to write down units

Question 2

What is meant if an equation is homogenous:

Answer 2

Same base units on both sides

Question 3

how much more accurate are micrometer screw gauges than a metre ruler

Answer 3

Micrometer screw gauges are 100 times more accurate than a metre ruler

Question 4

Explain an example of direct proportionality

Answer 4

Direct proportionality:
Number of students to number of fingers
1 student, 10 fingers
2 students, 20 fingers

Question 5

Explain inverse proportionality (equation)

Answer 5

Inverse proportionality (indirect)

P & 1/V
P = k X 1/V

PV = K (k = practical skills)