1. FORCES AND
MACHINES
BY:MARIA AND GEMMA

2. FORCES CAN PUT OBJETS INTO
MOTION.A FORCE CAN PUT AN
OBJECT INTO MOTION STOP AN
OBJECT OR CHANGE THE WAY THAT IT
MOVES .A FORCE CAN ALSO DEFORM
OR BREAK AN OBJECT.

4. TYPES OF FORCE
• CONTACT FORCES
• Contact forces act on objects
by making physical contact.
• NON-CONTACT FORCES
• Non-contact forces act on
objects without making physical
contact-.

5. GRAVITY

6. MACHINES
A machine is an instrument that multiplies the force.
• SIMPLE
MACHINES
• Have usually got one or
two parts.
• COMPLEX
MACHINES
• Have got many parts.

7. TYPES OS SIMPLE MACHINES
A lever consists of a rigid bar that
turns on a fixed point called the
fulcrum.
A pulley is a wheel with an axle in
the centre and a rope that turns
around.
Ramps are inclined planes that we
can use to go up and down . We can
also use them to move heavy loads.

8. COMPLEX MACHINES
A complex machine is a
combination of two or more
simple machines.