Lower the volume, increase surface area, add a catalyst, heat (temperature), increase the number of particles
100
What is kinetic energy?
Energy in motion
100
A ____ is made of two or more different atoms joined together.
Compound
100
____ have no charge, or are neutral.
Atoms
200
What are the components in H2O? What is the common name for H2O?
2 Hydrogen and 1 Oxygen, Water
200
What is the difference between kinetic and potential energy?
Potential energy is the stored energy of position possessed by an object. Kinetic energy is the energy of motion.
200
What is the difference between homogeneous mixtures and heterogeneous mixtures ?
Homogeneous mixtures are made when the components are evenly distributed. Heterogeneous mixtures do not have evenly distributed components.
200
How do you find speed?
Distance/Time
200
What is mass?
Mass is a measurement of how much matter is in an object.
300
If a bowling ball and a tennis ball are dropped at the same height, which one will hit the ground first?
They will hit the ground at the same time.
300
Mass, volume, length, area, and thickness are all examples of an _____ ______. This is a type of physical property.
Extensive Property
300
The law of ___ ___ ___the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
conservation of energy
300
A physical property that does NOT depend on the size of the sample of the material(how much you have). ex: No matter how much sulfur powder you have, it is yellow.
Intensive Property
300
What type of circuit will not let the energy go through it all?
Open circuit
400
A change in the form of matter, but not in its chemical identity;can be reversed.
Physical Change
400
Electromagnetism, strong force, weak force, and gravitational force are the 4 _______ _____.
Fundamental forces
400
What is it called when an object is falling under the sole influence of gravity.
Freefall
400
An _____ ____ is a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion.
Ionic Bond
400
Static, Fluid, Sliding, and Rolling are the 4 types of ____.
Friction
500
The force field of electricity is due to what type of energy?
Potential Energy
500
How do you find acceleration?
change in velocity/time
500
How is a molecule made?
When two or more atoms are joined together by chemical bonds.
500
4 signs of a ______ _____ are transfer of energy, color change, production of a gas, and formation of a precipitate.
chemical change
500
A _____ ___ is a chemical bond that involves sharing a pair of electrons between atoms in a molecule.