6th Science-Motion and Machines

A force acting on something and moving it a distance?

Motion

A foce applied to a simple machine.

Effort force

What is force

a push or pull

What are the ridges in a screw called?

threads

What is the ability for any object tha makes work easier by strenthening the force used or changing the direction of the force applied

Machine

A type of wheel and axle. (water, stream or wind turns the wheel) is what?

turbine

What is a resistance force?

A force that works against the effort.

What is a lever?

a rigid bar or board that turns on a fixed point

If it moves with the load it is called what?

a movable pulley

If it is attached to something so it doesn 't move, it is called what?

Fixed pulley

If it is an inclined plane that is wound around a cylinder or a cone, what is it?

Screw

If it has a wheel and a rod, running through the wheel, what is it called?

A Wheel and Axle

How would you describe a block and tackle?

It combines multiple fixed and moveable pulleys.

What is the formula for work?

F x D = W

What iclassification s a rod and reel?

3rd class lever

What classification is a pair of wire cutters?

1st class lever

What would classify a wheel barrow?

2nd class lever

How would a titter-totter be classified?

1st class