Machines make work easier and help us work more __________________.

Objects in motion have _______________ energy.

An object that is charp, like a knife, axe, or nail, is a __________________.

A ramp, staircase, and ladder are __________________.

Two objects rubbing together create __________________.

The (6) Six Simple Machines are...?

Potential energy is _______________ energy.

Simple machines with fulcrums (pivot points) are usually __________________.

These simple machines have ropes and planes.

Unless acted on by a force, objects in motion tend to stay in motion, and objects at rest tend to stay at rest. This is the principal of __________________.

A combination of two or more simple machines is a __________________.

Energy is moving or spinning objects like gears, car wheels, or joggers, is _______________ energy

A seesaw, crowbar, shovel, and nutcracker are __________________.

Doorknobs, screwdrivers, and wheels are sorts of __________________.

Friction resists or stops motion, and creates __________________.

Machines made of many compound machines are __________________.

There are many forms of energy. Energy caused by the movement of electrons is _______________ energy.

A pair of scissors has a __________________ and __________________.

What simple machines is used to hoist a flag or raise window blinds?

It's harder to push a real truck than a toy truck because objects with more mass have __________________.

A wheelbarrow, scissors, and a bicycle are __________________.

Energy stored in food, batteries, and fossil fuels like coal and gasoline is _______________energy.

A jar lid and corkscrew are __________________.

**A wheelbarrow is a compound machine with a __________________ and a __________________.

When I hold a ball in the air, it has potential energy. When I let go, the ball starts to fall. Potential energy changes to _______________ energy.