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Elem. Chem/Phys Fina

QuestionAnswer
What two things does matter have? Volume and mass
What is mass? How much matter is inside something
which is denser - a one inch block of gold or a one inch block of wood? A block of gold
What are the three states of matter? Solid, liquid, and gas
In which state of matter are molecules most active? gas
In which state of matter are molecules least active? Solid
Which two states of matter do not have a particular form or shape but take on the shape of their container? Gas and Liquid
What do we call the point at which a solid becomes a liquid? Melting Point
What do we call the point at which a liquid becomes a gas? Boiling Point
What temperature is the freezing point of water? 32 degrees Fahrenheit or 0 degrees Celsius
What temperature is the boiling point of water? 212 degrees Fahrenheit or 100 degrees Celsius.
What is an atom? The smallest particle of an element that keeps the properties of that element
What is an element? A substance made up of only one kind of atom
What is the charge of a proton? Positive
What is the charge of an electron? negative
What is the charge of a neutron? neutral
What do we call a solid with a regular, repeating arrangement of atoms? A crystal.
Which kind of polymer is widely used because it's light, easy to shape, and can be recycled and remolded into other things? Plastic
Which kind of reaction changes a substance into a different substance? A chemical reaction.
Which kind of reaction changes only the form or appearance of a substance? A physical reaction
True or false: A base tastes like vinegar and corrodes metal. False
What do we call a mixture in which the individual parts cannot be seen as separate? Homogeneous
Wht do we call a mixture in which the individual parts can be easily seen/ heterogeneous
Which law states that objects at rest tend to stay at rest and objects in motion tend to stay in motion in a straight line unless acted upon by a force/ Newton's first law of mtion
Which law States that for every action there is an equal and opposite reaction? Newton's third law of motion
Friction is a force that resists movement between two objects, true or false? True
What does a lubricant do? Reduces friction to make movement easier.
What is the law of universal gravitation? All objects are attracted to other objects according to their mass and distance.
What do we call the ability of someone or something to do work? Energy
What is kinetic energy? Energy in motion
What is potential energy? Stored energy
Can energy be created or destroyed? No
Name to forms of energy we get from fossils. Oil, coal, natural gas
Names two kinds of renewable energy. Hydropower, biofuels, geothermal, wind, solar, hydrogen
What do we call vibrations that travel through a material from a source? Sound
Ultrasound is too low for our ears to hear, true or false? False
What does ROY G. BIV stand for? Red, orange, yellow, green, blue, indigo, violet
What are the two kinds of invisible light at each end of the light spectrum? Infrared and ultraviolet
What do we call it when things become less and less ordered? Entropy or the second law of thermodynamics.
Radiant heat can travel through space, true or false? True
What three things are needed to start a fire? Oxygen, fuel, and heat
Electricity flows into your house through a direct current, true or false? False
What is the region around a magnet that produces a magnetic force? A magnetic field
What is the earth's core made out of? Mostly liquid iron
A magnet powered by an electric current that can be turned off and on is called an electromagnet, true or false? True
What is an inclined plane that's wrapped around a cone or cylinder? A Screw
What lever has the fulcrum in the center and the load and effort on opposite ends? A first-class lever
What must a wheel have to work? An axel
What do we call the device that moves around and around on a treadmill? A drive belt
Which pulley system makes work easier - a single pulley system or a double-pulley system? A double-pulley system.
Created by: Kids3
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