What's the matter?
What is matter?
Everything that has mass and volume
What are 5 types of energy?
BONUS 100: Name all the main types of energy
Mechanical, luminous, thermal, electrical, nuclear, chemical, sound
What are the ways energy changes matter?
Physical and chemical
What are the different states of matter?
Solid, liquid, gas
What do forces do?
They make things move. It can be a push or pull movement, etc.
What is a type of matter that can be in all 3 states?
Water
What energy is stored and what energy is movement?
Potential is stored, kinetic is movement
What is an example of physical change?
Ex: When we cut wood to make a sculpture.
What are the 4 changes of state?
Solidification, fusion, condensation, vaporisation
What are the two types of forces?
BONUS 100 points: Define the two forces
Contact force and non-contact force
Contact: when an object exerts force on another
Non-contact: when 2 objects interact, but don't touch
Name 4 physical properties of matter.
BONUS 100: Name all of them.
Hardness, elasticity, flexibility, transparency, brittleness, lustre
What type of energy is this?
Listening to music at a concert.
Sound energy
What happens when we heat and cool metal?
It expands when we heat it and contracts when we cool it.
What are the two types of vaporisation?
Evaporation, boiling
What type of force is this?
Two cars crashing into each other.
Contact force
What property of matter is this describing?
A cup is rigid.
Flexibility
What's an example of energy in nature for luminous and thermal energy?
The sun, snow, etc.
What type of change happens when we bake a cake?
Chemical change
What is the difference between boiling and evaporation?
Boiling is when a liquid needs to be heated, but evaporation can happen at a range of temperatures
How do forces affect objects?
They change the position or physical shape of an object.
What are two objects with opposite descriptions of brittleness?
Example: A glass is brittle, a pot is tough
How do potential energy and kinetic energy relate to each other?
Potential energy turns into kinetic energy. For example, our body stores potential energy and it turns into kinetic when we run.
What types of changes happen due to heat?
Temperature variation, change of state, expansion and contraction
What type of change of state is this?
When solid matter is heated to its melting point.
Fusion
What is it called when forces change the shape of an object?
Deformation