What is the upward force on an object that is falling through the air?
100
Add the number of protons and the number of neutrons
How is the mass of an atom determined?
100
Measure of how difficult it is to stop a moving object
What is momentum?
100
Lever
inclined plane
Pulley
screw
Wedge
wheel and axle
What are the 6 simple machines?
100
Mass/volume = density
What is the equation to find density?
200
Add the number of protons and the number of neutrons
How is the mass of an atom determined?
200
Friction
What always opposes a body in motion?
200
Malleable, ductile, good conductors of electricity, shiny
What are the main characteristics of metals?
200
A liquid’s resistance to flow
What is viscosity?
200
Characteristic of matter that can be detected by the senses; color, shape, taste
What is Physical Property?
300
Static – prevents an object from moving, sliding – resists motion between 2 objects that are sliding pass one another and rolling – resists motion between 2 objects that are rolling pass one another
What are the three different types of friction?
300
Force is equal to mass times acceleration
What is Newton's 2nd Law?
300
Wind, solar, biomass, hydroelectric, geothermal
What are alternative energy resources?
300
Energy stored in bonds between atoms
What is chemical energy?
300
Change in matter in which matter’s identity remains the same.
What is physical change?
400
Speed and direction
What do you need to know to find the velocity of an object?
400
If the density of the object is less than the density of the liquid
How do you know if an object will float?
400
Brittle, poor conductors of electricity, dull in color
What are the main characteristics of non-metals?
400
Number of protons in the nucleus and number of electrons in a neutral atom
What does the atomic number tell you?
400
Characteristic of matter that can be detected by the senses
What is physical property?
500
Any change of a material into a new material with different properties; baking, burning, dye something
What is chemical change?
500
They are the same temperature
What do we know about the freezing point and the melting point of a substance?
500
Thermal
What type of energy is “always” lost?
500
Atoms of the same element with different number of neutrons
What is an isotope?
500
Characteristic of something that allows it to change into something new.