Energy And Matter 2020-2021 Question Preview (ID: 52417)
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What is temperature?
a) The average potential energy of the particles in a material
b) The average kinetic and potential energy of the particles in a material
c) The average kinetic energy of the particles in a material
d) The average convection of the particles in a material
2. What does the average kinetic energy of particles in a substance do when the substances temperature increases?
a) The average kinetic energy of the particles decreases
b) The average kinetic energy of the particles increases
c) The average kinetic energy of the particles is not affected by temperature
d) The average kinetic energy of the particles changes to potential energy
3. What is thermal expansion and what does a substance do when it is going through thermal expansion?
a) a substance gains heat (energy) causing the particles to slow down and come together. The substance contracts
b) a substance loses heat (energy) causing the particles to slow down and come together. The substance contracts
c) a substance gains heat (energy) causing the particles to move faster and spread apart. The substance expands.
d) a substance loses heat (energy) causing the particles to move faster and spread apart. The substance expands
Same amount of energy is added to 2 substances with the same mass, one heats faster. Explain how this could happen.
a) The substance that gained heat faster has a low specific heat allowing it to change temp. faster
b) The substance that gained heat faster has a high specific heat allowing it to change temp. faster
c) The substance that gained heat faster had more particles
d) None of the above
Explain how heat transfers in conduction, convection, and radiation.
a) Conduction by touch, radiation by heat waves, convection particle movement
b) Radiation by touch, Conduction by heat waves, convection particle movement
c) Convection by touch, radiation by heat waves, conduction particle movement
d) Convection by touch, conduction by heat waves, radiation particle movement
Compare the specific heat of water to metals. Which has a higher specific heat?
a) Water and metal have the same specific heat
b) Water has a higher specific heat, causing it to take longer to change temperature than metals
c) Water has a lower specific heat causing it to change temperature faster than metals
d) none of the above
What do materials do when they are heated?
a) The particles move faster, come together and the material contracts
b) The particles move slower, spread apart and the material expands
c) The particles move faster, spread apart and the material expands
d) The particles move slower, come together and the material contracts
Would a higher or lower temperature make particles in a substance move faster?
a) A lower temperature
b) Temperature does not affect particle movement
c) A higher temperature
d) None of the above
What type of heat transfer is occurring when you roast a marshmallow over a fire?
a) Radiation
b) Conduction
c) Convection
d) Condensation
Describe how particles are arranged and how they move in each state of matter.
a) Solid packed tight and move fast, liquid little farther apart, move a little faster, gas farthest apart moves fastest
b) gas packed tight and move fast, liquid little farther apart, move a little faster, solid farthest apart moves fastest
c) liquid packed tight and move fast, solid little farther apart, move a little faster, gas farthest apart moves fastest
d) liquid packed tight and move fast, liquid little farther apart, move a little faster, solid farthest apart moves fastest
What is kinetic energy?
a) Stored energy
b) Both stored energy and energy in motion combined
c) Thermal energy
d) Energy in motion
Explain how running hot water over a jars metal lid could help you open it when it is stuck.
a) Heat makes the metal particles move slower and contract
b) Heat makes the metal particles move faster and contract
c) Heat makes the metal particles move slower and expand
d) Heat makes the metal particles move faster and expand
What is potential energy?
a) Thermal energy
b) Both stored energy and energy in motion
c) Energy in motion
d) Stored energy
What is the difference between a thermal conductor and a thermal insulator? Give an example of each one
a) Thermal conductors slow energy flow, while thermal insulators allow energy to flow easier.
b) Thermal conductors allow energy to flow easy, while thermal insulators slow the flow of energy.
c) Thermal conductors and thermal insulators both slow energy flow.
d) Thermal conductors and thermal insulators both allow energy to flow easy
What do air particles do when the temperature increases?
a) They begin to shrink
b) They begin to contract
c) They begin to move faster
d) They begin to slow down
What has to happen to the temperature of two objects in order for one object to transfer heat to another object?
a) The two objects must touch or no energy will transfer
b) The two objects must be different temperature
c) The two objects must be heated before energy will transfer
d) Objects do not transfer heat between one another
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