MACHINE y3

MACHINE

 State the meaning and the uses of pulleys.
• Describe how a fixed pulley works using a model.
 Give examples of the application of pulleys in life.
• Create a functional model of a pulley.
 Explain the result of observations about pulley through written or verbal forms, sketches or ICT

in a creative way.

MEANING OF
MACHINE

1. Device that are used to make
work easier for humans

2. Example of machines is PULLEY
(year 3)

wedge, inclined plane,
wheel and axle,
screw and gear (year 6)

WHAT IS PULLEY?

Pulley is a simple machine which
enable load to be lifted easily using
lesser force.

EXAMPLE PULLEY ON A
CRANE MODEL.
THE COMPONENTS
ARE:

HOW DOES THE
FIXED PULLEY
WORK ON THE
CRANE MODEL?

1. When the rope is pulled, the load
will be lifted upwards by the
fixed pulley.

What other device uses pulley?
Can you give the example?

Raising the flag Pulling the fishing
net

Lifting a Lifting the heavy
bucket object
of water
from
the well

MACHINE

 Let’s do an exercises in
activity book

Page 85 to 89

Tuesday / Thursday

12th Oct 2021 / 14th Oct 2021

PAGE 85

Wheel Axle
Groove
Rope

Load

PAGE 86

load
groove

turn

Wheel PAGE 87
Groove
Rope Axle

Load Lifting a bucket of water from
the well

Lifting heavy object at the PAGE 88
building construction

Wheel It will save tAimxlee and
Groove energy
Rope
Pulling fish net
Load

Number of fishermen
needed is less

Wheel PAGE 89
Groove
Rope Axle

Load

easier heavy object

MACHINE

Congratulations on joining
Science class

Teacher Nazura Ahmad