Practice Quiz

MCAS Physics Exam Practice - Question List

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106. A rise in the temperature inside a kitchen means there is an increase in the
  1. density of the air molecules.
  2. number of the air molecules.
  3. average size of the air molecules.
  4. average kinetic energy of the air molecules.
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107. Which of the following provides the best example of simple harmonic motion?
  1. riding a regular bus route
  2. sliding down a water slide
  3. running a consistent daily jog
  4. swinging on a playground swing
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108. Jessica places 1000 g of water at 20.0°C in an insulated cup. The speciic heat capacity of water is 4.20 J/g • °C. What is the inal temperature of the water if 5000 J of energy is added to the water in the insulated cup?
  1. 20.1°C
  2. 20.5°C
  3. 21.2°C
  4. 25.0°C
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109. Which of the following is a vector quantity?
  1. mass
  2. force
  3. temperature
  4. kinetic energy
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110. Two identical beakers each contain 250 mL of water. The temperature of the water is 85°C in one beaker and 15°C in the other beaker. A drop of red food coloring is placed in each beaker at the same time. During the irst minute, which of the following is most likely to happen?
  1. The food coloring will spread out faster in the 85°C water than in the 15°C water.
  2. The food coloring will form a layer at the top of each beaker since it does not mix with water
  3. The food coloring will spread only halfway through the water in each beaker due to convection currents.
  4. The food coloring will settle faster at the bottom of the beaker containing 85°C water than at the bottom of the beaker containing 15°C water.
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