SIMPLE MACHINES

• Science
• Primary Education

Guess the topic

LEARNING OBJECTIVE

To identify the types of simple machines and analyze their uses in daily life.

What is a machine?
How will you describe a simple machine?

A machine is a thing that is created by people to make work easier. It is a tool or invention which multiplies the effect of human effort. 

Simple machine

A machine with few or no moving parts that is used to make work easier

Types of simple
machnies

Ask 

Make a mind map on the types of simple machines.

03:04

What do you think who will win Mr. Muscle or Olivia and How?Explain.

04:44

How lever helped Elijah lift the stone?

05:55

Olivia pushed the weight so easily with the wheel and an axle!!
Can you explain how it helped her?

07:20

Explain how wedge cuts the wood.

08:54

Give an other example of inclined plane.

Lever

Pulley

Wheel and Axle

Inclined plane

Wegde

Screw

1.What simple machine would you use to open a door?
2.What simple machine would you use to chop down a tree?
3.What simple machine would you use to get a big rock off the bike path?

1. Lever(For hinges)
2. Wedge
3. Lever

LET'S DISCUSS!

1.What 2 simple machines make up the top item pictured? 

2.What makes the 1st knob  easier to
use than the 2nd knob?

Lever 1st and 2nd Wheel and axle

Think of what simple machines you would use to do the following job. Tell how you would do it.
You want to build a jump for your bike. Your dad said you can use the pile of garage for it.

To build a jump I can use wooden blocks to make an inclined plane and to make a ramp I will use steel or iron.

A scissor is considered to have 2 simple machines.Explain.
Label the parts of a lever.

 Scissor is a combination of wedge and lever.

You can the image on teams as it will not be visible for students.

A rod attached to the center of a wheel is called:

1. a magnet
2. a wedge
3. a top
4. an axle

Students won't see the options so you can read it out or paste the options in teams so they can see

The blade of a shovel acts as one type of machine as it separates soil when it enters the ground. The handle of the shovel acts as a second type of machine when the person using it lifts the soil. What 2 simple machines make up a shovel?

1. pulley and wedge
2. screw and inclined plane
3. lever and pulley
4. wedge and lever

Which simple machine is most like a human arm?

1. a lever
2. a wedge
3. an inclined plane
4. a screw

Opening a curtain is an example of what simple machine?

1. pulley
2. screw
3. wedge
4. lever

This women is drilling a hole.Which type of simple machine will she probably insert in the hole when she's done drilling.

She will insert a screw.

Share the image with the students.

Which type of simple machine is a ladder that he is standing on?

Inclined plane

This man is breaking through the wall.The hammer in his right hand is a lever.What type of simple machine is the chisel in his left hand?

Wedge

A child has a box of comic books she got from a garage sale.She brought the books home in a wagon,but she can't carry the box up the steps into the house. Make a decision about which simple machine she can construct that will help her get the box of comics up th steps.

She can make use of inclined plane by making a ramp.

Homework

Make a simple machine out of the materials present at your home and explain how you made it.

You may present your work on a ppt OR make a video and upload it on flipgrid.

https://flipgrid.com/23ea75cd