It's the force exerted by the object.
LOAD
A complex machine uses energy from...
Electricity
Electricity or combustion
Animals or people
A lever is...
A flexible bar with a fulcreus
A bar
A rigid bar with a fulcrum
A complex machine has...
1-2 parts
Many parts
3 parts
What are the types of levers?
1- Fulcrum in the middle 2- Load in the middle 3- Effort in the middle
Archimedes invented simple machines with...
CATAPULT, MIRRORS, SCREW and LEVER
A wheel and axle and pulleys make it...
EFFORTLESS
EASIER TO LIFT OR LOWER HEAVY OBJECTS
MORE DIFFICULT TO LIFT OR LOWER HEAVY OBJECTS
it's the simplest machine: it only has 1 part.
INCLINED PLANE
It's the point where the lever turns.
FULCRUM or PIVOT POINT
What's an INCLINED PLANE?
It's a ramp used to LIFT and LOWER objects
A simple machine uses energy from...
Electricity
Animals
People or animals
The types of simple machines are...
Levers, wheel and axle and pulleys, and inclined planes
The longer the ramp...
the less inclined it is.
It's the force applied by the person.
EFFORT
Say the parts of a pulley
WHEEL, AXLE, GROOVE and ROPE
A simple machine has...
2-4 parts
1 or 2 parts
many parts