WORK & ENERGY REVIEW Chapter 6. A SPEEDOMETER MEASURES? SPEED.

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Presentation transcript:

WORK & ENERGY REVIEW Chapter 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.Batteries 2.Gasoline 3.Food

WORK IS…? The result of a force moving 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