Unit5. Energy

Unit5. Energy

FORMS OF ENERGY

https://www.youtube.com/watch?v=IqV5L66EP2EPotential and kinetic

Multiple Choice

An example of kinetic energy is...

• The sun

• a weight in the air

• a toaster

• flowing water

Multiple Select

Energy can harm the enviroment so...

• we have to be responsible with its use

• we have to try not to harm nature

• we can use it all the time

• all of them are correct

Multiple Choice

Potential energy...

• is the energy from the sun

• can be stored and transform into ther forms of energy

• comes from motion

• comes from vibrations

Multiple Select

What is mechanical energy?

• The stored energy from an object

• The sum of potential and kinetic energy that is used to do something

• a person riding a bike

• the light of a candle

https://www.youtube.com/watch?v=oB1v-wh7EGU

What is electricity?

Multiple Choice

Electrical energy is the movement of electrons from one atom to another.

• True

• False

Multiple Choice

Sound energy...

• is produced when we use the stored energy in an objetc

• is produced by vibrations that we feel

• is produced when food fermentates

• is produced with a fuel and oxygen

Multiple Choice

Ligh energy...

• can be artifitial or man made

• can be man made or natural

• can be renewable

• can be natural and renewable

Multiple Choice

Chemical reactions create...

• thermal energy

• sound energy

• heat energy

• chemical energy

Multiple Choice

What is heat?

• Is thermal energy that flows from hotter objects to colder objets

• Is thermal energy that flows from colder objects to warmer objets

• is the energy that food gives us

• is the energy that drums produce

Multiple Choice

Light travels in all directions but always in a straight line.

• True

• False

Multiple Choice

When lights hits an object...

• the object can absorb some colours

• the object reflects some colours

• the reflcted colours are the ones that we see

• all are correct

https://www.youtube.com/watch?v=9Vsl0Iom3S0

https://www.youtube.com/watch?v=KnIualWf6Rs

Multiple Choice

Without light we could see objects, their shape, size and colour.

• True

• False

Multiple Choice

Depending on the surface that light hits...

• it can travel in one or many directions

• we see one colour or another

• we are going to see claer on unclear images

• all of them are correct