Measuring length

Question 1

what options are there for measuring length

Answer 1

• rule
• micrometer screw gauge
• measuring cylinders

Question 2

rule

Answer 2

• as an example for measuring the length of wire

you can lay it next to the rule but this could cause it not being accurate if there is a dent in the wire

Question 3

micrometer screw gauge

Answer 3

• as an example for measuring the length of wire
  you can stick the object between the barrel then just tighten it, and read the main scale to the nearest 0.5mm, read the additional fraction of a millimetre from the fractional scale
• main scale reading + fractional scale reading = thickness of the rod

Question 4

measuring cylinders for measuring volume

Answer 4

• select a measuring cylinder that is about 3-4 times larger than the object. Partially fill it with water, enough to cover the object. Note the volume of the water
• immerse the object in the water. The level of water in the cylinder will increase in its volume is equal to the volume of the object.

Question 5

(length) 1 decimetre (dm) is equal to how many metres

Answer 5

• 0.1 m

Question 6

(length) 1 centimetre (cm) is equal to how many metres

Answer 6

• 0.01 m

Question 7

(length) 1 millimetre (mm) is equal to how many metres

Answer 7

• 0.001 cm

Question 8

(length) 1 micrometre is equal to how many metres

Answer 8

• 0.00000 m

Question 9

(length) 1 kilometre (km) is equal to how many metres

Answer 9

• 1000 m

Question 10

(volume) 1 cubic centimetre (cm3)

Answer 10

• 0.000001 m3

Question 11

(volume) 1 cubic centimetre (dm3)

Answer 11

• 0.001 m3