Physical or chemical change? a) Burn a paper, b) Sugar solution, c) Prepare a salat, d) Rotten meat, e) Boil water, f) Ferment grape
a) Chemical, b) Physical, c) Physical, d) Chemical, e) Physical, f) Chemical
Karaoke time
How are called all the change of state?
https://www.aplustopper.com/matter-change-state/
What have in common sound and light?
Both travel through waves
What is the first, the ligthining or the thunder?
They are at the same time.
Which is the temperature that water freezes? And in which it boils?
0 ºC and 100 ºC
Karaoke time
Ok?
How much is the total force and which is the direction and sense?
Yes?
Time to play!
Who is the winner?
Which magnitudes did we use on CRASH project?
Position, speed, time, acceleration, force.
Matter is...
everything that takes up space and has mass.
Say three examples of matter, and three elements which aren't matter.
Yes?
Say an example of a quantitative magnitude and a qualitative magnitude.
Is it OK?
What is a magnitude?
Any property of matter that can be measured.
Which are the units in SI?
Meter, kilogram and second.
How can we change 120 km/h to m/s?
Right?
