1.2 Flashcards
0
Q
What is mass
A
Mass is the amount of matter in a substance or object (g or kg)
1
Q
What is matter
A
Matter is anything with mass and volume
2
Q
What Is volume?
A
Volume is the amount of space a substance or object takes up. (L)
3
Q
What is a chemical change?
A
A change in matter that occurs when substances are combined to form new substances (fireworks exploding)
4
Q
What is a physical change?
A
May be a change in appearance but no new substances are formed (chewed food)
5
Q
What is the particle model of matter ?
A
- describes the behaviour of matter
- matter is made of small particles
- -there are spaced between the particles
- always moving
- attracted to one another
6
Q
What is the kinetic molecular theory?
A
- describes what happens to matter when the kinetic energy of particles change
- matter is made of small particles there is empty space between
