Forces can deform objects by changing their shape, either elastically and returning to the original shape or plastically and maintaining the new shape. Forces also move objects by increasing or decreasing their speed and changing their direction. The document discusses machines, robots, electrical circuits, and magnetism. It explains that machines use mechanical or other types of energy to transmit force and make work easier. Robots are computer-controlled machines designed for repetitive, difficult, or dangerous jobs. Electrical circuits allow generation, distribution, and use of electric current. Magnets attract iron and some metals due to magnetism and attract or repel depending on whether poles are opposite or same.

1. LA TIERRA
HOW DOES
THE WORLD
MOVE?
Luisa and Elvira
CEP ALFARES
6th Grade

2. FORCES
FORCES
Forces transmit energy,
which is the
ability to produce change.
Energy can deform an object and cause it to
change its motion
FORCES DEFORM OBJECTS
if we apply a force to an elastic on defomable object ,we change its
shape .When stop appling the force:
-an elastic object returs to its previous shape . This property is elasticity
-a deformable object maintains its new shape.This property is know as
plasticity

3. FORCES MOVE OBJECTS
Force changes the
speed of an object:
it can increase it or
decrease it. It can also
change the object's
line of action.

4. wheelbarrow
Machines are devices invented by human to make
work easier. Some machines uses mechanical energy
to transmit force,others use different kinds of energy.
MACHINES
see saw balance scale

5. File Edit Format View
B I U
Robots
Robots are computer-controlled machines
designed to carry out jobs that are
repetitive, difficult or dangerous for
humans.

6. ELECTICAL CIRCUIT
An electrical circuit is a
group of interconnected
elements that allows us
to generate, distribute
and utilise electric
current.

7. Magnets are objects made from materials that have
property to attract iron and some other metal.
This property is called magnetism . We can find natural
magnets and artificial magnets.
The magnetic properties of a magnet are strongest
at poles (north pole and south pole):
-when two different poles come together ,the magnets
attract each other
-when two poles (same poles )come together, the magnets
repel each other.
Magnetism