Zusammenfassung der Ressource
RESTANT
MATERIALS 5
- ELECTRONIC SYMBOLS
- Switch
- It can open and close the
switch to control the flow of
elctrisatie
- Buzzer
- When it connected to a cell
and has a elerticacll flow it
will make a adiuball sound
- Bulb
- It emits lights up
when a electrical
currant
- L.E.D
- A diode only alloys
electricy to flow in one
direction
- Cell
- This is usually is 1.5
volt cell which makes
a eltrical flow
- Battery
- This is a collection of cells
e.g 9 volt battery
- Motor
- This moves when power is appliede
- WOOD AND WHERE
IT COMES FROM
- What type of trees supply us
with soft wood?
CONIFEROUS TREES
- What type of trees supply
us with hard wood?
DECIDUOUS TREES
- Why would the softwood we use in the
picture frame project be seasoned
before use? IT GROWS QUICK AND
TO STRAIGHT
- What would happen if the
softwood we use had been
seasoned too quickly? THE
WOOD COULD TWIST
- What timber material would a
more expensive picture frame
have been made from?
MAHOGANY BECAUSE IT
CAN BE HARD TO WORK
WITH BUT HAS GOOD FINISH
- Why should we advoid using timber with
a large knot? BECAUSE IT CAN SPLIT
- Describe the three main types or
classifacations of wood?
SOFTWOODS,HARDWOODS AND
MANUFACTURED BOARD