1.4 Use of Measuring Instrument ACSE

To measure length between 2 points, we can use

• ruler

• lever balance

• stopwatch

• thermometer

to measure the mass, we can use

• stopwatch

• triple beam balance

• thermometer

• ammeter

triple beam balance is used to measure

• length

• time

• mass

• temperature

temperature 0⁰C equal to 273 Kelvin. If 1⁰C = 274 Kelvin, 2⁰C = 275Kelvin, then 12⁰C is equal to

• 12 Kelvin

• 285 Kelvin

• 276 Kelvin

• 277 Kelvin

Reading 1= 10.1 cm,

Reading 2 = 10.2 cm,

Reading 3 = 10.0 cm

The average is

• 30.3 cm

• 10.0 cm

• 10.3 cm

• 10.1 cm

smallest scale for ruler is

• 1 cm

• 1 mm

• 10 mm

• 5 mm

vernier scale can measure the smallest reading up to 0.1 mm or

• 1 cm

• 0.01 cm

• 1 mm

• 0.1 cm

which one has higher accuracy to measure the diameter or thickness of small object

• ruler

• measuring tape

• micrometer screw gauge

• vernier calipers

micrometer screw gauge is more accurate than the vernier calipers

• True

• false

Error that be obtained from a measuring instrument is

• zero error

• parallax error