Unit 1
What is Matter?
Matter is anything that has mass and takes up space.
What is solid?
Solid is the state of matter in which the volume and shape of a substance are fixed.
What is Motion?
An object that changes position over time relative to a reference point.
What is the element for silver
Ag
What is an atom?
The smallest unit of matter that makes up an element.
What is Mass?
Mass is a measure of the amount of matter in an object.
What is liquid?
Liquid is the state of matter that has a fixed volume, but can change shape.
What is force?
A push or a pull. All forces have a size and direction.
What is Hydrogen's atomic number?
1
How many atoms are in Nirtogen?
2
What is Weight?
Weight is a measure of the gravitational force on an object.
What is gas?
Gas is the state of matter that can change both shape and volume.
What is a contact force?
A force that is touching.
17
What is the bond that connects 2 atoms?
Chemical Bond
What is Volume?
Volume is a measure of the amount of space an object takes up.
What is kinetic energy?
Kinetic energy is the energy of motion. When something is moving, it has kinetic energy.
What is a non contact force?
A force that can act from a distance.
How many rows are in the Periodic Table?
18 rows
What is a compound?
A compound is a substance made up of two or more different atoms.
What is Density
Density is the ratio of the mass of a substance to its volume.
What is pressure?
As gas particles move freely, they collide with surfaces around them. These collisions produce a force which is called pressure.
What are 3 contact forces and 3 non contact force?
Contact forces - Air resistance, Friction, and Tension
Non contact forces - Gravity, Magnetism, and Static
How many elements are in the Periodic Table?
(It's higher than 100)
118
What is a molecule?
Two or more atoms connected by chemical bonds.