6th Grade Science Ch9

____ occurs whenever an object speeds up, slows down, or changes

____ is the change of an object’s position.

Which Machine is a bar that turns on a point

The ____ of an object is determined by its mass and velocity.

Broom

The spot where a lever turns is called a fulcrum.

Axe Blade

A simple machine combines two or more machines to make work easier.

Makes work easier by changing the direction of the force or reducing the amount of force needed to move an object

The resistance to a change in motion is called ____ .

A fixed unmoving object or location is ____ .

____ is the ability to make something move.

Which unit is used to measure work?

Galileo is credited with formulating the three laws of motion we use today.

The resistance force works against the effort.

Physics is Hard

Which machine is an inclined plane wound around a ­cylinder or cone?