Motion and Machines

____ is the ability to make something move.

• Mechanical energy

• Chemical Energy

• Motion

• Inertia

Tags

NGSS.MS-PS2-2

A fixed unmoving object or location is________ .

• potential energy

• a joule

• a reference point

• effort force

______ is the change of an object's position.

• Kinetic energy

• Motion

• Speed

• Resistance

The_____ of an object is determined by its mass and velocity.

• inertia

• effort force

• momentum

• stored energy

Tags

NGSS.MS-PS3-1

______ occurs whenever an object speeds up, slows down, or changes.

• Momentum

• inertia

• Friction

• Acceleration

The resistance to a change in motion is called_______

• inertia

• friction

• effort force

• velocity

Which unit is used to measure work?

• newton

• cubic centimeter

• mile

• joule

What is the decrease in effort that is needed to move an object called?

• mechanical advantage

• resistance force

• work

• effort force

Which machine is a bar that turns on a point?

• pulley

• lever

• inclined plane

• screw

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

• pulley

• wheel and axle

• screw

• wedge