PS Unit 4 Test Review Game

Which principle best explains how this thermometer works?

• A gas changes to a liquid when heated

• A liquid contracts when heated and expands when cooled.

• A liquid expands when heated and contracts when cooled.

• A liquid changes to a gas when heated

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• light -->chemical

• thermal --> light

• electrical --> nuclear

• electrical --> light

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What happens to temperature during a phase change?

• stays the same

• increases

• decreases

• sky rockets

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NGSS.MS-PS1-4

Choose the example of kinetic energy from the below list.

• baseball sitting in a glove

• cheetah running after prey

• a pencil sitting on a desk

• a car parked in the street

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What is the difference between potential energy and kinetic energy?

• Potential energy is the energy of an object due to its position, while kinetic energy is energy due to its motion.

• Potential energy is the energy of an object due to its motion, while kinetic energy is energy due to its position.

• Potential energy is the energy of an object due to an applied force, while kinetic energy is energy stored after the applied force.

• Potential energy is the energy stored after an applied force, while kinetic energy is the energy used from the applied force.

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A bicyclist at the top of a hill begins to coast without pedaling. The bicycle speeds up as it descends to the bottom of the hill and then slows down as it continues up a second hill, where it stops. Which of these sequences best describes the energy change of the bicycle from the top of the hill until it stops?

• potential — kinetic — kinetic

• kinetic — potential — potential

• kinetic — potential — kinetic

• potential — kinetic — potential

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An automobile engine transforms chemical energy of fuel primarily into

• electrical energy and light energy.

• electrical energy and mechanical energy.

• thermal energy and light energy.

• thermal energy and mechanical energy.

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A popsicle is dropped on the sidewalk on a warm day. The popsicle soon melted to form a puddle. What process caused the popsicle to melt?

• Heat transferred through the popsicle by convection.

• Heat transferred from the air and the pavement by conduction.

• Heat transferred from the air to the popsicle by radiation.

• Heat transferred through the popsicle into the pavement by conduction.

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Which letter represents thermal energy transfer by way of convection?

• A

• B

• C

• D

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Identify which skater is displaying kinetic energy

• 1

• 2

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