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Presentation transcript:

Forces Screws & Levers Who Am I? True or False Name Game

A push or a pull.

What is a Force

A Simple Machine does this

What is makes work easier

Can change the effort or direction of forces

What is a machine

Machines make work easier by doing this to forces

What is multiplying force

The amount of force is measured in this

What are Newtons

The point around which a lever moves

What is the fulcrum

The distance between the thread on a screw

What is the pitch

Class of lever where the fulcrum is in the middle

What is First Class Lever

Class of lever where the effort is in the middle

What is Third Class Lever

Class of lever where the load is in the middle

What is Second Class Lever

An inclined plane wrapped around a shaft

What is a screw

Two or more simple machines combined

What are Compound Machines

Type of pulley that only changes the direction of the force.

What is a fixed pulley

I am forced into or between objects to raise or split them

What is a Wedge.

Name the 3 simple machines that have an inclined plane

What are the screw, inclined plane, and wedge

Inclined planes can be used to raise loads.

What is True

In a wedge there is no change in the direction of a force

What is False.

A single movable pulley moves down when a load is raised by it.

What False.

A bicycle is a simple machine.

What is False.

In a second class lever, the load is in the middle.

What is True.

Wheelchair Ramp

Inclined Plane

Hockey Stick

Lever

Nail

Wedge

Doorknob

Wheel & Axle

Screwdriver

Lever