Simple Machines

Which simple machine can be best to use in cutting your nails?

• knife

• scissors

• nail clipper

Which of the following does NOT a function of simple machines?

• help us to do work with less force

• make work easier

• makes us to become lazy

What type of simple machine shows in a given picture?

• wedge

• inclined plane

• pulley

Mary always go to a well to get some water to her plant. What type of simple machine can be found in a well.

• wheel and axle

• screw

• pulley

Which type of simple machine can be used to break things apart?

• screw

• wedge

• inclined plane

Which simple machine can be used to join things together?

• lever

• pulley

• screw

What is the class of lever if effort is in the middle?

• Class 1

• Class 2

• Class 3

What is the class of lever if load is in the middle?

• Class 1

• Class 2

• Class 3

What is the class of lever if fulcrum is in the middle?

• Class 1

• Class 2

• Class 3

What is the class of lever the scissors is?

• Class 1

• Class 2

• Class 3