Conversions and measurement Flashcards Preview

Abi Science 2016 > Conversions and measurement > Flashcards

Flashcards in Conversions and measurement Deck (36):
1

What is the base measurement for time?

Seconds
s

2

What is mass?

The amount of matter in an object

3

What is volume?

The amount of space an object takes up

4

What is density?

Mass per unit volume
The distance between particles in an object

5

What is the base measurement for length?

Meters

6

What is the base measurement for electric current?

Ampere
A

7

What is the base measurement for temperature?

Kelvin
K

8

What is the base measurement for light intensity?

Candela
cd

9

What is the base measurement for the amount of matter in a substance?

Mole
mol

10

What is the base measurement for mass?

Kilogram
kg

11

What is the prefix for /1000?

Kilo
10^3

12

What is the prefix for /100 000?

Mega
10^6

13

What is the prefix for /100 000 000?

Giga
10^9

14

What is the prefix for x1000?

milli
10^-3

15

What is the prefix for x100 000?

micro
10^-6

16

What is the prefix for x100 000 000?

nano
10^-9

17

What is the prefix for da?

deka

18

What is the prefix for h?

hecto

19

What is the prefix for k?

kilo

20

What is the prefix for d?

deci

21

What is the prefix for c?

centi

22

What is the prefix for m?

milli

23

What is the prefix for μ?

micro

24

What is the prefix for n?

nano

25

What is the prefix for M?

Mega

26

What is the prefix for G?

Giga

27

What is metric measurement based on?

The number ten

28

What are derived units?

They are values that do not have base units, they can only measured by calculations.

29

What are the derived units?

Volume
Density
Speed

30

What is the measurement for volume?

Length x width x height
m^3

31

What is the measurement for density?

Mass / volume
g/cm^3

32

What is the measurement for speed?

Distance/time
km/h

33

What is scientific notation?

It is a way of writing very large and very small numbers

34

How do you write scientific notation?

Write the number as a decimal with a single digit before the comma
Write x10
The exponent will be however many places the comma jumped
If you have a really small decimal number to start with, your exponent will negative

35

How do you convert measurements?

If you are converting from a small unit to a bigger unit, divide.
If you are converting from a big unit to a small unit, multiply.

36

What is 0K in °C?

-273,15