Part 2 Bridging Module

moles

unit of the dimension “amount of matter”

Newton

unit of the dimension “weight”

sec, min, hour

unit of the dimension “time”

kg

unit of the dimension “weight”

understand this

understand this

1. meter

2. Kg

3. Second

>fundamental units, dito mag dderive yung iba

SI unit of:

1. length

2. mass

3. time

A

How many grams are there in 110 moles of Carbon?

MM of 12 g/mol.

a.1320 g

b. 690 g

c. 1780 g

d. 2140 g

Lahat lang ng may fraction

Conversion Factor

Ex: Area and Volume

Derived Units Length

2d vs 3d

m/s/s/s

Derived Units Length and Time

“specific” -mass lagi denominator

Ex: Specific heat = Joules/Kg

Derived unites mass, sg, sv

important conversions

B

What is the density(g/mL) of urine with specific

gravity of 2.0?

a) 1.0

b) 2.0

c) 3.0

d) 4.0

C

A runner moves at a constant speed of 5 m/s. Using

dimensional analysis, determine how long (in seconds) it will

take the runner to cover a distance of 150 m.

a) 20 s

b) 25 s

c) 30 s

d) 35 s

N= (kg)(m/s2)

Derived unites mass and acceleration

Pressure = F/A

Derived unites mass and acceleration

W=work =Fd

F= force

d= distance

N-m= Newton (force)-meter (length)

>ordered kasi na ccontrol

Derived units Energy

nakadepende sa distance

if may force ka sa object at hindi humalaw from original distance = no work

>work at distance= conjugate variable

1. Mechanical work

2. Expansion work

Joules = expansion work x change in volume

Pascal = N/m2

Volume= m3

Work

Derived units Energy and time