# 3.20 Module test

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## Module test

1. Join the correct answer in column B with the definition in column A:

 A B The shortest possible line Ray Has no beginning or end point Plane Has a beginning point but stretches out indefinitely Point Has length and breadth but no height Straight line

(4)

2. Name the following angles.

a)

..................................................

b)

..................................................

c)

..................................................

(3)

3. An aeroplane flies for 400 km in the direction of 040 degrees. It then changes direction and flies a further 300 km in the direction of 125 degrees. Draw the aeroplane’s route. 1 cm = 100 km.

(2)

4. True or false?

a) This polygon is convex.____________________________________________

b) At least one of the inner angles of a concave polygon is a reflex angle. _______________________________________________________________

c) A triangle is rigid.________________________________________________

d) An irregular polygon’s sides are all equally long.________________________

(4)

5. Calculate the size of each corner of a regular heptagon by using the formula you learnt.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(4)

6. Measure the following angles with your protractor.

a)

..................................................

b)

..................................................

(2)

7. What kind of triangles are each of the following?

a) ..................................................

b) ..................................................

c) ..................................................

3)

8. A figure is symmetrical if

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(1)

9. Draw a polygon with four axes of symmetry. Show each axis with a broken line.

(3)

10. Use broken lines and show how you would make a pentagon sturdy.

(1)

11. Draw any figure that tessellates in the block below.

(1)

30

anyone know any internet site where one can find nanotechnology papers?
research.net
kanaga
Introduction about quantum dots in nanotechnology
what does nano mean?
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
for screen printed electrodes ?
SUYASH
What is lattice structure?
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
what's the easiest and fastest way to the synthesize AgNP?
China
Cied
types of nano material
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
how did you get the value of 2000N.What calculations are needed to arrive at it
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