Which is not a type of simple machine?

• spring

• screw

• pulley

• wedge

Work is...

• energy from the sun.

• a force that moves an object.

• a type of machine.

• a force that pulls you towards the Earth.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What type of simple machine is found on the cap of a pickle jar?

• lever

• inclined plane

• screw

• wheel and axle

What is the fixed point upon which a lever rotates?

• resistance arm

• effort arm

• load

• fulcrum

The image is what class of lever.

• 1st class lever

• 2nd class lever

• 3rd class lever

• It is not a lever.

Tags

NGSS.MS-PS2-2

What type of simple machine is found on the floor of a bathtub?

• screw

• inclined plane

• wedge

• pulley

Which of these is an example of a wedge?

• skateboard

• broom

• stairs

• butter knife

A screw is made up of _______ wrapped around a post or rod.

• threads

• springs

• treads

• strings

Which of these is not an example of an inclined plane?

• ladder

• wall

• stairs

• driveway

Which is an example of someone using a simple machine to do work?

• a boy runs across the football field

• a banker counts money

• a mother pushes a stroller up a ramp into a building

• a girl eats a sandwich