Simple Machines

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

• a boy runs in the football field

• a banker counts money

• a mother pushes stroller up a ramp

• a girl eats a sandwich

 

A machine with grooves that winds round and round in a spiral is a

• pulley

• screw

• wedge

• lever

 

A special kind of wheel that changes the direction of the force. When you pull down the object goes up.

• wedge

• lever

• inclined plane

• pulley

A machine used for slicing or cutting is a

• wedge

• inclined plane

• screw

• lever

A seesaw is an example of a

• wedge

• inclined plane

• screw

• lever

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What type of simple machine would you find on the bottom of a car?

• Pulley

• Wedge

• Inclined plane

• Wheel and axle

Simple machines are simple tools that are found around us. Which is a function of simple machines?

• Changing the force direction is not possible

• Make our work easier

• Increase the effort exerted in doing the task

• Make work longer and difficult to do

Tags

NGSS.MS-PS2-2

A heavy object could be rolled up instead of lifting it straight. Using this simple machine we can save our effort. What simple machine is this?

• screw

• lever

• inclined plane

• pulley

In case of third class lever, the sequence is

• fulcrum, load, effort

• load, fulcrum, effort

• fulcrum, effort, load

• effort, load, fulcrum

In your art class, your teacher instructs you to cut papers into four equal parts. Which among the following will you use?

• cutter

• ruler

• pair of scissors

• hands