Energy Review 2018-2019 #2 Question Preview (ID: 44769)
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Explain what occurs when the energy of an object changes?
a) when energy of an object changes energy is simply being transferred somewhere else
b) The energy will simply disappear
c) The energy of objects never change it always stays the same
d) The energy continues to decrease as the object gets older
When water boils what form of energy transfer is occurring?
a) Conduction
b) Convection
c) Radiation
d) Transformation
When you stretch a rubber band out and let it go when does it have the most potential energy? When does it have the most kinetic energy?
a) The most potential energy when it is stretched out, and the most kinetic when it is released and goes flying
b) The most kinetic energy when it is stretched out, and the most potential when it is released and goes flying
c) The rubber band will only have kinetic energy there will not be any potential energy
d) The rubber band will only have potential energy there will not be any kinetic energy
Energy flows from_________objects to __________________objects, and is/is not the same as temperature?
a) Cold to hot and is not
b) Hot to cold and is
c) Hot to cold and is not
d) Cold to hot and is
When temperature of an object increases, what happens to the molecules in that object?
a) The molecules do not change when an objects temperate
b) The molecules lose kinetic energy and begin to come together and slow down
c) The molecules gain kinetic energy and begin to come together and slow down
d) The molecules gain kinetic energy and begin to spread out and move faster
What does temperature measure? What tool do you use to measure temperature?
a) Measures how hot something is and you use a ruler
b) Measures average kinetic energy and you use a barometer
c) Measures average kinetic energy and you use a thermometer
d) Measure how cold something is and you use a thermometer
How does heat transfer by convection?
a) as electromagnetic waves that move away from a hot object
b) when two objects touch
c) when hot rises and cold sinks
d) By photosynthesis
What are two examples of heat transfer by convection?
a) Your hand feeling the warmth of a coffee mug and the stove heating a pan that is sitting on the burner
b) feeling the warmth of a heat lamp when holding your hand in front of it and feeling the warm sun in the summer time
c) Water boiling in a pan on the stove and feeling warmer air when you climb to a top bunk bed
d) feeling the warmth of a heat lamp when holding your hand in front of it and the stove heating a pan on the burner
How does heat transfer by conduction?
a) when hot rises and cold sinks
b) when two objects touch
c) as electromagnetic waves that move away from a hot object
d) By photosynthesis
What are two examples of heat transfer by conduction?
a) Your hand feeling the warmth of a coffee mug and the stove heating a pan that is sitting on the burner
b) feeling the warmth of a heat lamp when holding your hand in front of it and feeling the warm sun in the summer time
c) Water boiling in a pan on the stove and feeling warmer air when you climb to a top bunk bed
d) feeling the warmth of a heat lamp when holding your hand in front of it and the stove heating a pan on the burner
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