Upthrust 2

Time to review!!

Write down in you notebook the definition of this words.
You can look for information in you book or in the blog’s dictionary.

• Mass
• Volume
• Density
• Upthrust

Now complete exercise 3 from page 93, draw a  picture in a white paper that you will paste later on your notebook. This is going to be our ARTS  work for this week

You have to draw a situation where the opposite forces of gravity and upthrust  pull against other, for example something that is floating in a river.

Draw nice details and color it nicely, remember to apply the background color softly.

Upthrust 1

Hi! Today you are going to watch 2 videos to understand what upthrust means.

Now its time   to read page 92 and  copy the orange box.

Gravity and weight 2-updated with solutions

Firstly we are going to revise a little:

Answer in your notebook:

What is gravity:___________________

Why is the moon attracted towards the earth?__________________

Is it easier to walk on the moon or on the earth? ____________

Why?_______________

What is gravity: is a non contact force, it also a pull force.

Why is the moon attracted towards the earth? because the earth’s gravity force is stronger due to is larger mass

Is it easier to walk on the moon or on the earth? it is easier to walk over the earth

Why? the force that pulls towards the centre of the moon is smaller, so when someone tries to walk over the moon floats and lands slowly.

 Now copy the orange box from page 89 and read the explanation.

Finally complete exercise 3 from page 89, exercise 4 is optional.

Gravity and weight 1

Now complete you summary of page 88 in your notebook.

VOCABULARY

COMPLETE USING THE WORDS FROM THE BOX+SOLUTIONS

VOCABULARY REVIEW

Attract: pull towards.
Atraer: tirar hacia uno mismo.
Balanced force: force that is opposite and
equal.
Fuerza equilibrada: fuerza opuesta e igual.
Contact force: visible force that touches the
object it’s acting on.
Fuerza de contacto: fuerza visible que toca
el objeto sobre el que está actuando.
Magnetism: invisible non-contact, push or pull
force, created by a magnet.
Magnetismo: fuerza invisible y sin contacto,
de empujar o tirar, creada por un imán.
Non-contact force: invisible force that doesn’t
touch the object it's acting on.
fuerza sin contacto: fuerza invisible que no
toca el objeto sobre el que está actuando.
Repel: push away.
Repeler: empujar.