WORK & ENERGY REVIEWChapter 6

A SPEEDOMETER MEASURES?SPEED

THE TENDENCY OF A MOVING OBJECT TO STAY IN MOTION IS CALLED?

INERTIA

A MACHINE IS?Anything that makes work easier.

AN EXAMPLE OF KINETIC ENERGY.A ball rolling

ENERGY THAT RESULTS FROM A CHEMICAL CHANGE?Chemical energy

3 THINGS THAT CHEMICAL ENERGY IS FOUND IN?1. Batteries2. Gasoline3. Food

WORK IS…?The result of a forcemoving an object.

STORED ENERGY IS CALLED?Potential energy

A FORCE THAT PULLS TWO OBJECTS TOGETHER?Gravity

A MACHINE WITH MANY MOVING PARTS THAT HAS LOW EFFICIENCY? Complex machine

ANYTHING THAT DOES WORK USES?Energy

WHEN A MOVING OBJECT RUBS AGAINST SOMETHING, ITS MOTION SLOWS DOWN BECAUSE OF THE FORCE?Friction

AN AXE IS AN EXAMPLE OF?Compound machine

WHAT IS A SIMPLE MACHINE?A machine that has only one or two moving parts.

HIGH EFFICIENCY MEANS A LOT OF WORK IS DONE FOR THE AMOUNT OF _______ _________Energy Used

NAME THE SIMPLE MACHINES:PULLEY, SCREW, INCLINED PLANE,

LEVER, OR WHEEL AND AXLE

Inclined plane

NAME THE SIMPLE MACHINES:PULLEY, SCREW, INCLINED PLANE,

LEVER, OR WHEEL AND AXLE

Wheel & Axle

NAME THE SIMPLE MACHINES:PULLEY, SCREW, INCLINED PLANE,

LEVER, OR WHEEL AND AXLE

Lever

NAME THE SIMPLE MACHINES:PULLEY, SCREW, INCLINED PLANE,

LEVER, OR WHEEL AND AXLE

Pulley

NAME THE SIMPLE MACHINES:PULLEY, SCREW, INCLINED PLANE,

LEVER, OR WHEEL AND AXLE

Wedge