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