Measurement

Question 1

What does SI stand for?

Answer 1

International System of Units.

Question 2

What SI unit is for time?

Answer 2

Seconds (s)

Question 3

What SI unit is for mass?

Answer 3

Kilogram (kg)

Question 4

What SI unit is for atoms?

Answer 4

mol

Question 5

What SI unit is for the strength of light?

Answer 5

Candela (cd)

Question 6

What SI unit is for temperature?

Answer 6

Kelvin (K)

Question 7

What SI unit is for the strength of an electric current?

Answer 7

Amperes (A)

Question 8

What SI unit is for distance?

Answer 8

Metres (m)

Question 9

What SI unit is for area?

Answer 9

square metre

Question 10

What SI unit is for volume?

Answer 10

cubic metre

Question 11

What SI unit is for force?

Answer 11

Newtons (N)

Question 12

What SI unit is for speed and velocity?

Answer 12

metres per second (m/s)

Question 13

What SI unit is for acceleration?

Answer 13

meters per second squared

Question 14

What SI unit is for density?

Answer 14

kilogram per cubic metre

Question 15

What SI unit is for electric charge?

Answer 15

Coulomb (C)

Question 16

Name the 8 SI prefixes, their symbols and what they mean.

Answer 16

1. giga (G) = billion
2. mega (M) = million
3. kilo (k) = thousand
4. deci (d) = tenth
5. centi (c) = hundredth
6. milli (m) = thousandth
7. micro (u) = millionth
8. nano (n) = billionth

Question 17

How many mm in 1 cm?

Answer 17

10.

Question 18

How many cm in 1m?

Answer 18

100.

Question 19

How many m in 1km?

Answer 19

1 000.

Question 20

How many mm in 1m?

Answer 20

1 000.

Question 21

How many cm in 1km?

Answer 21

100 000.

Question 22

How many mm in 1km?

Answer 22

1 000 000.

Question 23

How many mg in 1g?

Answer 23

1 000.

Question 24

How many g in 1kg?

Answer 24

1 000.

Question 25

How many kg in 1 ton?

Answer 25

1 000.

Question 26

How many mg in 1 ton?

Answer 26

1 000 000 000.

Question 27

How many s in 1 min?

Answer 27

60.

Question 28

How many min in 1 hr?

Answer 28

60.

Question 29

How many hrs in 1 day?

Answer 29

24.

Question 30

How many days in 1 yr?

Answer 30

365.

Question 31

What is the error of parallax?

Answer 31

The error of parallax occurs when your line of sight to the instrument is not accurate. To avoid the error of parallax, make sure that your eye is directly in line with the mark of the scale that you want to measure.

Question 32

What is meniscus?

Answer 32

The flat part of the liquid level, ignoring the curved edges.