Module 1 & 2
A tentative explanation for something...
What is a hypothesis
The number of protons in an atom...
What is the atomic number
Compounds made of only two elements
Binary compounds
A push or pull that acts on an object..
What is force
Energy that is stored as a result of position or shape...
Any factor that changes in an experiment...
What is a variable
A region of space around the nucleus where electrons are most likely to be found...
What are orbitals
A chemical reaction that absorbs energy from its surroundings...
What is an endothermic reaction
A force that results when surfaces of objects rub against each other and opposes motion....
What is friction
The force a person exerts on a machine...
What is Input Force
A homogeneous mixture made by dissolving one substance in another...
What is a solution
Atoms of an element with the same number of protons but different numbers of neutrons...
What are isotopes
The ratio of the total distance traveled to the total time of the trip...
What is the average speed
The tendency of an object to resist changes in its velocity...
What is inertia
The distance the input force is applied
What is input distance
Movement in gases and liquids that spreads out particles...
What is diffusion
A chemical bond formed between oppositely charged ions...
What are ionic bonds
The distance an object travels plus the direction from the starting point...
What is displacement
Friction that opposes the initiation of motion...
What is static friction
The energy of an object due to its motion...
What is kinetic energy
The ratio of a substance's mass to it's volume...
What is density
A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared....
What are polar molecules
A physical measurement that contains both magnitude (number) and directional information...
Vector quantity
The motion of an object when it is falling solely under the influence of gravity...
What is free falling
The force exerted by a machine..
What is output force