A student drops a ball. Which forces causes the ball to fall to the ground?

• electricity

• friction

• magnetism

• gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which simple machine helps a flag move up a flagpole?

• lever

• inclined plane

• pulley

• wheel and axle

A force may change the ____________ of an object.

• motion

• name

• gravity

• weight

Tags

NGSS.MS-PS2-2

All pushes and pulls are____________.

• energy

• weight

• gravity

• forces

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which simple machine is the man using to get the wheelbarrow up into the truck?

• lever

• pulley

• inclined plane

• screw

Which simple machine is a knife?

• pulley

• wedge

• wheel and axle

• inclined plane

This picture shows a ________________.

• pulley

• wheel and axle

• screw

• lever

This simple machine is known as a ________.

• lever

• pulley

• inclined plane

• screw

This picture show an example of a __________________.

• pulley

• lever

• screw

• inclined plane

Which simple machine is this?

• pulley

• lever

• wheel and axle

• screw