SIMPLE MACHINES

SIMPLE MACHINES

Let´s do and learn! 

Multiple Choice

Designed to simple and safe work.

• Simple machines.

• Complex machines.

• Scissors.

• Robots.

Multiple Select

The following are simple machines, except:

• The lever.

• The pulley.

• Robots.

• Computers.

Poll

Examples of complex machines include:

• The lever and pulley.

• Robots and cellphones.

• Computers.

• None.

Multiple Choice

The computer is considered a complex machine because:

• It has only one point of support.

• It has many parts.

• It has few parts.

• It is easy to use it.

Multiple Choice

A slide is an example of:

• an inclined plane.

• A lever.

• The pulley.

• The wheel and the axle.

Multiple Choice

A see saw is an example of:

• a lever.

• an inclined plane.

• a pulley.

• a screw.

CASE STUDY 1

• Mario  and Romina want to play see saw in the park. 

• What simple machine is used in this game? 

The switch

The switch of the fan is loose so the lights of the classroom can not be turned on. What simple machine do we need to fix the switch? 

The warehouse 

Juan works at servientrega´s warehouse  and needs to lower some heavy boxes from a truck. What simple machine does he need to put the boxes down? 

Remember, there are six types of machines: 

• Lever. 

• Pulley. 

• Inclined plane.

• Wheel and axle. 

• Screw. 

• Wedge

Evaluative activity 

Time to practice.