Unit 2 Energy Grade 8

Temperature is

• measure of the average kinetic energy of all the particles in an object

• hot & cold

• related to potential energy

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Energy :

• takes many different forms and causes many different effects.

• has two general types:kinetic & potential

• is the ability to cause change

• none of the above

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Degrees are

• like scientific notation or exponents

• things that are more and less

• are equally spaced units between 2 points

• measured on a thermometer

Kinetic energy :

• its amount depends on its mass and speed.

• is the energy of an object that is due to motion.

• the energy that an object has due to its position, condition, or chemical composition.

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3 types of measurement for temperature include:

• Kelvin

• calorie

• Fahrenheit

• Celsius

Potential energy:

• the energy of an object that is due to motion.

• is the energy that an object has due to its position, condition, or chemical composition.

• increases as its mass increases

• none of the above

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Thermal energy:

• is the total kinetic energy of all particles in a substance

• is heat.

• is measured in joules

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Potential energy that is the result of an object’s position is called

• thermal potential energy

• solar potential energy

• gravitational potential energy

• none of the above

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Temperature is related to the average kinetic energy of particles, while thermal energy is the total kinetic energy of all particles. A good example of this is:

• glass of water & Lake Superior have same temp, but the glass has MORE thermal energy due to less molecules

• glass of water & Lake Superior have same temp, but the Lake has MORE thermal energy due to more molecules

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A change in the condition of an object affects its potential energy. For example, stretching a rubber band increases its potential energy.

• TRUE

• FALSE

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