Is this pulley or gear or lever?
Pulley
Is this pulley or gear or lever?
Pulley
Levers were used in ancient Egypt to lift stones to construct _________.
the pyramids
The more wheels you have in a pulley , the ________ rope you need to use.
longer
Is this pulley or gear or lever?
Pulley
True or false: When two gears are connected, they always turn in opposite directions.
True
Pulleys can be used to make a ( small / large ) force lift a larger load.
small
Levers can be used to make as small force lift a ( smaller / larger ) load.
larger
A pulley with ___________ wheel and a rope helps you change the direction of the lifting force.
a single / one
True or false : The larger wheel in gear turns faster.
False
Is this pulley or gear or lever?
lever
Is this pulley or gear or lever?
Pulley
The distance between the ________ and the place where the person pushes affects how easy or hard it is to lift a load with the lever.
pivot
Is this pulley or gear or lever?
lever
A _______ is a wheel or a collection of wheels over which a rope is looped.
pulley
Is this pulley or gear or lever?
lever
Is this pulley or gear or lever?
lever
Is this pulley or gear or lever?
gear
True or False : The more wheels a pulley has, the more it reduces the force needed to lift the weight.
True
Gears can be used to change the speed, ________ or direction of motion.
force
True or False : The more wheels you have in a pulley , the more force you need to apply.
False
Is this pulley or gear or lever?
Pulley