Science Ch. 5 and 6
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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| Solids | Matter with a definite shape and definite volume. Particles are packed close together.
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| Liquids | Matter with a definite volume but no definite shape. Particles move faster than a solid.
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| Viscosity | Measurement of a liquids resistance to flow.
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| Surface Temperature | The uneven forces acting on the particles on the surface of a liquid.
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| Gases | Matter that has no definite shape or volume.
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| Melting | Change of matter from a solid to a liquid. Must have thermal energy applied.
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| Freezing | Change from a liquid state to a solid state.
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| Vaporization | Change from a liquid to a solid.
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| Sublimation | Change of state from a solid to a gas without going through the liquid state.
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| Deposition | Change of state of a gas to a solid without going through the liquid state.
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| Molecular Theory | is an explanation of how particles in matter behave.
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| Pressure | is the amount of force applied per unit of area. When particles collide with their container, pressure results.
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| Pressure and Volume | when the volume is greater, the particles have more room to move (fewer collisions-pressure is less).
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| Boyle's Law | states that pressure of a gas increases if the volume decreases and pressure of a gas decreases if the volume increases, when temperature is constant.
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| Charles Law | states that the volume of a gas increases with increasing temperature, if the pressure is constant.
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| Thermal Energy | is the sum of the kinetic energy and the potential energy
of the particles that make up a material.
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| Temperature | represents the average kinetic energy of the particles that make up a material. The greater the average kinetic energy of particles the greater the temperature.
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| Heat | is the movement of thermal energy from a warmer object to a cooler object.
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| Thermal energy is transferred in three ways | radiation, conduction, convection.
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| Radiation | the transfer of thermal energy from one material to another by electromagnetic waves. All matter including the Sun transfers thermal energy by radiation.
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| Conduction | the transfer of thermal energy between materials by the collisions of particles. Conduction continues until the thermal energy of all particles in contact is equal.
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| Thermal conductors | material through which thermal energy flows easily.
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| Thermal insulators | material through which thermal energy does not flow easily.
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| Specific Heat | amount of thermal energy required to increase the temperature of 1 kg of a material by 1 degrees Celsius. All materials have a specific heat.
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| Thermal Contraction | is a decrease in a materials volume when its
temperature decreases.
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| Thermal Expansion | is a increase in a materials volume when its temperature increases.
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| Convection | is the transfer of thermal energy by the movement of particles from one part of a material to another. Only occurs in fluids.
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| Convection Currents | movement of fluids in a cycle because of convection. Convection currents circulate the water in Earth's oceans and other bodies of water. This plays an important role in Earth's climates.
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| Heating Appliance | a device that converts electric energy into thermal energy. Examples: curling iron, coffeemakers
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| Thermostat | a device that regulates the temperature of a system.
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| Refrigerator | device that uses electric energy to transfer thermal energy from a cooler location to a warmer location.
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| Heat Engine | a machine that converts thermal energy into mechanical energy.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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