questions to study: natural science (light, magnetism and machines)

MAGNETISM

1.   WHAT IS THE MAGNETISM?

2.   WHAT IS A MAGNET?

3.   WHAT IS A MAGNETIC FIELD?

4.   WHAT CAN IT HAPPEN WHEN TWO MAGNETS TOUCH AT THE POLES?

5.   EFFECTS OF ELECTRICAL CURRENTS

LIGHT

6.   WHAT IS THE LIGHT AND  THE CHARACTERISTICS?

7.   TYPES OF OBJECTS

8.   MATERIALS

9.   PROPERTIES

MACHINES

10.                     WHAT ARE MACHINES: CLASSIFICATION

11.                     TYPES OF SIMPLE MACHINES. EXAMPLES. EXPLAIN ONE SIMPLE MACHINE

12.                     COMPONENTS  OF COMPOUND MACHINES

13.                     PARTS OF A BICYCLE

14.                     CLASSIFICATION OF MACHINES BY THE ENERGY SOURCE AND THEIR FUNCTION

MACHINES. SIMPLE AND COMPLEX. SPANISH VIDEOS

MAQUINAS SIMPLES

>>>CLASES DE MÁQUINAS

MAQUINAS COMPUESTAS

MACHINES

IS IT A MACHINE? SIMPLE OR COMPOUND MACHINE?

SIMPLE MACHINES: TYPES AND FUNCTION

THE WHEEL

A Wheel is a circular object that rotates around a central axle. Wheels make object roll and they are some of the most important machines in our lives.

INCLINED PLANE

The ramp is a simple machine called an inclined plane. We use inclined planes to raise  or lower objects with less force.

SCREW

If we roll an inclined plane around a cylinder or axis we make a screw. We use screws to fix pieces together when we make furniture or other things.

WEDGE

We uses wedges in many machines or tools to separate two objects when we apply a force.

PULLEY

A pulley is a wheel with a channel which guides a rope. When we pull the rope, the object rises. We use the pulleys in lifts.

WHAT IS A PULLEY?

>>>>>> VIDEOS:http://www.neok12.com/Simple-Machines.htm<<<<<<<<

>>CLICK HERE<<

>>>>MAQUINAS SIMPLES

what is a wedge?

what is a screw?

the lever and inclined plane

wheel and axle

pulleys

Gears and compound machines

HOW DOES A CAR ENGINE WORK?

>>>inside the computer<<<<<

>>>avances tecnológicos

>>>inventos

>>>maquinas

>>>>MODERN INVENTIONS

>>>THE LEVER

ELECTROMAGNETS- HOW COMPASS WORKS

to build the electromagnet:

-screw

-battery

-wire

-paper clip

1. Was the screw magnetic before be connected to the battery?

2. Does the screw attract the clips when it is connected to the battery?

CAMPO MAGNÉTICO TERRESTRE

how compass works

min.4 '

MAGNETISM

WHO DISCOVERED THE MAGNET?

>>>>>>>>>>>>>>>>SHEPHERD MAGNES STORY

TEST ABOUT MAGNETISM

magnetism for kids

magnetic field

>>>how the magnets work

MAGNETIC FIELD EARTH


What is a magnetic field?

How compass works?

ELECTROMAGNETISMO

>>>>MAGNETISMO

>>>FENÓMENOS MAGNÉTICOS

>>>Magnetismo II

>>>IMANES Y CORRIENTE ELÉCTRICA

MAGNETISM GAME

how liquids impact a magnet.EXPERIMENT

Materials: 3 glasses, a magnet, 12 paper metal clips, some water, some olive oil and some syrup

How does the experiment work?

when using water and olive oil, the paper clips moved through the liquid to the magnet very quickly. This is because the liquids provided very little resistance. 

However, the paper metal clip in the syrup moved very slowly toward the magnet.This is because the syrup has a very think consistency.

magnet song

IT CAN ATTRACT OBJECTS MADE OF IRON OR MIXTURES OF IRON.

IT IS THE ATTRACTION CREATED BY A MAGNET.

>>>>>If you have more time and you want to learn about the magnetism.

>>>CLICK HERE

>>>>>>>>>>>><<magnets

IÓN MAGNÉTICA

REVIEW. ELECTRICITY

CIRCUIT SYMBOLS

SYMBOL	PURPOSE	EXAMPLE
	It provides electrical energy
LAMP/ BULB	It transforms electrical energy into light
WIRE	It allows current to travel / flow
SWITCH(OPEN)	It allows the circuit to be turned off so that the electricity cannot pass
SWITCH(CLOSED)	It allows circuit to be closed so that the electricity can pass
MOTOR	It transforms electrical energy into movement energy (mechanical energy)

EX.1. In this diagram, what electrical component is missing?

EX.2. Answer the questions:

-What is electrical current?

-What is a conductor?

-What is an insulator?

EX.3. 

EX.4.

series or parallel circuits

SERIES CIRCUIT: there is only one pathway for electricity.If it is open, the flow of the current stops.

PARALLEL CIRCUIT: there are two or more pathways for electricity current to flow. If one pathway is open, the other one still works.

lemon battery

QUESTIONS: LIGHT, MAGNETISM AND MACHINES. Worksheets.

MAGNETISM

1.   WHAT IS THE MAGNETISM?

2.   WHAT IS A MAGNET?

3.   WHAT IS A MAGNETIC FIELD?

4.   WHAT CAN IT HAPPEN WHEN TWO MAGNETS TOUCH AT THE POLES?

5.   EFFECTS OF ELECTRICAL CURRENTS

LIGHT

6.   WHAT IS THE LIGHT AND  THE CHARACTERISTICS?

7.   TYPES OF OBJECTS

8.   MATERIALS

9.   PROPERTIES

MACHINES

10.                     WHAT ARE MACHINES: CLASSIFICATION

11.                     TYPES OF SIMPLE MACHINES. EXAMPLES. EXPLAIN ONE SIMPLE MACHINE

12.                     COMPONENTS  OF COMPOUND MACHINES

13.                     PARTS OF A BICYCLE

14.                     CLASSIFICATION OF MACHINES BY THE ENERGY SOURCE AND THEIR FUNCTION