Physical Science EOCT Practice Part II
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Transcript of Physical Science EOCT Practice Part II
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Physical Science EOCT PracticePart II
Milton High School
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Potassium is an element in group 1 and period 4. How many valence electrons does an atom of potassium contain?
A. 1B. 2C. 3D. 4
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Potassium is an element in group 1 and period 4. How many valence electrons does an atom of potassium contain?
A. 1B. 2C. 3D. 4
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What phase change occurs when a solid changes directly into a gas?
A. FreezingB. MeltingC. EvaporationD. Sublimation
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What phase change occurs when a solid changes directly into a gas?
A. FreezingB. MeltingC. EvaporationD. Sublimation
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During the process of melting, what happens to the temperature of the substance?
A. It stays constantB. It increasesC. It decreasesD. It increases and then
decreases
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During the process of melting, what happens to the temperature of the substance?
A. It stays constantB. It increasesC. It decreasesD. It increases and then
decreases
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Ms. Coln dissolves an unknown substance in water. The solution is corrosive, conducts electricity, and has a higher concentration of H+ ions than OH- ions. What kind of solution does this unknown substance form?
A. An acidic solutionB. A basic solutionC. A neutral solutionD. A non-electrolyte solution
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Ms. Coln dissolves an unknown substance in water. The solution is corrosive, conducts electricity, and has a higher concentration of H+ ions than OH- ions. What kind of solution does this unknown substance form?
A. An acidic solutionB. A basic solutionC. A neutral solutionD. A non-electrolyte solution
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What happens to the solubility of a typical solute as temperature increases?
A. The solubility decreasesB. The solubility increasesC. The solubility remains the sameD. There is no way to know without knowing which
exact solute
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What happens to the solubility of a typical solute as temperature increases?
A. The solubility decreasesB. The solubility increasesC. The solubility remains the sameD. There is no way to know without knowing which
exact solute
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What is the coefficient on Hg when the following equation is balanced?
HgO Hg + O2
A. 1B. 2C. 3D. 4
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What is the coefficient on Hg when the following equation is balanced?
HgO Hg + O2
A. 1B. 2C. 3D. 4
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Which of the following BEST describes the difference between speed and velocity?
A. Speed includes distance and direction while velocity includes only distance.
B. Speed includes distance and direction while velocity includes only direction.
C. Velocity includes distance and direction while speed includes only direction.
D. Velocity includes distance and direction while speed only distance.
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Which of the following BEST describes the difference between speed and velocity?
A. Speed includes distance and direction while velocity includes only distance.
B. Speed includes distance and direction while velocity includes only direction.
C. Velocity includes distance and direction while speed includes only direction.
D. Velocity includes distance and direction while speed only distance.
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Mr. Lanham takes off in his boat from the dock and reaches a velocity of 6 meters per second after 3 seconds. What is the boat’s acceleration?
A. 0.5 meters/second2
B. 2 meters/second2
C. 6 meters/second2
D. 18 meters/second2
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Mr. Lanham takes off in his boat from the dock and reaches a velocity of 6 meters per second after 3 seconds. What is the boat’s acceleration?
A. 0.5 meters/second2
B. 2 meters/second2
C. 6 meters/second2
D. 18 meters/second2
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Inertia is the tendency of an object to continue its current state of motion. Which of the following BEST describes the relationship between inertia and mass?
A. A greater mass means that something is easier to slow down or speed up.
B. The amount of inertia of an object is equal to its mass.
C. The greater the mass of an object, the greater the inertia it has.
D. The greater the mass of an object , the less inertia it has.
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Inertia is the tendency of an object to continue its current state of motion. Which of the following BEST describes the relationship between inertia and mass?
A. A greater mass means that something is easier to slow down or speed up.
B. The amount of inertia of an object is equal to its mass.
C. The greater the mass of an object, the greater the inertia it has.
D. The greater the mass of an object , the less inertia it has.
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When Mrs. Pullano is standing at the front of the class teaching Chemistry, the force of gravity is pulling her down toward the ground. The ground is pushing back with an equal and opposite force. This is an example of
A. Newton’s First Law of MotionB. Newton’s Second Law of MotionC. Newton’s Third Law of MotionD. The Law of Gravitation
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When Mrs. Pullano is standing at the front of the class teaching Chemistry, the force of gravity is pulling her down toward the ground. The ground is pushing back with an equal and opposite force. This is an example of
A. Newton’s First Law of MotionB. Newton’s Second Law of MotionC. Newton’s Third Law of MotionD. The Law of Gravitation
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JJoel drops a baseball from a window on the tenth floor of his apartment building. Each floor has a height of 12 feet. What is the baseball’s velocity after 2 seconds?
A. 2.0 m/secB. 9.8 m/secC. 19.6 m/secD. 24 m/sec
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JJoel drops a hammer from a window on the tenth floor of his apartment building. Each floor has a height of 12 feet. What is the hammer’s velocity after 2 seconds?
A. 2.0 m/secB. 9.8 m/secC. 19.6 m/secD. 24 m/sec
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The mass of two objects is an important factor in determining the force of gravity between them. What is the second important factor?
A. Their volumeB. The distance between themC. Their diametersD. Their densities
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The mass of two objects is an important factor in determining the force of gravity between them. What is the second important factor?
A. Their volumeB. The distance between themC. Their diametersD. Their densities
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Which statement is correct?
A. Weight is the amount of material in an object.B. Mass is the physical dimensions of an object.C. Weight is the gravitational pull on an object.D. Mass is the gravitational pull on an object.
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Which statement is correct?
A. Weight is the amount of material in an object.B. Mass is the physical dimensions of an object.C. Weight is the gravitational pull on an object.D. Mass is the gravitational pull on an object.
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Mr. Sheridan entered his prize pumpkin in the State Fair. If the mass of the pumpkin is 1400 kg, what is its approximate weight?
A. 14 gB. 1400 NC. 14000 ND. 6360 N
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Mr. Sheridan entered his prize pumpkin in the State Fair. If the mass of the pumpkin is 1400 kg, what is its approximate weight?
A. 14 gB. 1400 NC. 14000 ND. 6360 N
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It takes 8 seconds for a pulley system to lift a load that weighs 400 N to a height of 10 m. How much power is required?
A. 4000 wattsB. 3200 wattsC. 500 wattsD. 80 watts
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It takes 8 seconds for a pulley system to lift a load that weighs 400 N to a height of 10 m. How much power is required?
A. 4000 wattsB. 3200 wattsC. 500 wattsD. 80 watts
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In order for a lever to multiply its effort force,
A. Its effort force must equal its resistance armB. Its resistance arm must be longer than its effort armC. Its resistance arm should be one meter in lengthD. Its effort arm should be longer than its resistance arm
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In order for a lever to multiply its effort force,
A. Its effort force must equal its resistance armB. Its resistance arm must be longer than its effort armC. Its resistance arm should be one meter in lengthD. Its effort arm should be longer than its resistance arm
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What is the definition of power?
A. The ability to do workB. The rate of doing workC. The amount of work doneD. Work output provided by work input
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What is the definition of power?
A. The ability to do workB. The rate of doing workC. The amount of work doneD. Work output provided by work input
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Newton’s first law of motion describes the tendency of objects in motion to continue in motion and objects at rest to remain at rest. What term is used to describe this behavior?
A. VelocityB. AccelerationC. DisplacementD. Inertia
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Newton’s first law of motion describes the tendency of objects in motion to continue in motion and objects at rest to remain at rest. What term is used to describe this behavior?
A. VelocityB. AccelerationC. DisplacementD. Inertia
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An acorn falls from an oak tree to the ground and hits a squirrel on the head. What is the acorn’s final velocity if it falls for 3 seconds?
A. 9.8 m/secB. 19.6 m/secC. 29.4 m/secD. 96.0 m/sec
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An acorn falls from an oak tree to the ground and hits a squirrel on the head. What is the acorn’s final velocity if it falls for 3 seconds?
A. 9.8 m/secB. 19.6 m/secC. 29.4 m/secD. 96.0 m/sec
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Materials that prevent heat flow are
A. Usually metalsB. ConductorsC. InsulatorsD. Radiators
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Materials that prevent heat flow are
A. Usually metalsB. ConductorsC. InsulatorsD. Radiators
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In which medium would a sound wave travel the fastest?
A. AirB. VacuumC. WaterD. Steel
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In which medium would a sound wave travel the fastest?
A. AirB. VacuumC. WaterD. Steel
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A balloon is rubbed all over with wool. The balloon will now attract the water because
A. The balloon and the water are magnetsB. The balloon and the water have opposite chargesC. The balloon and the water have like chargesD. The balloon and the water are neutral
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A balloon is rubbed all over with wool. The balloon will now attract the water because
A. The balloon and the water are magnetsB. The balloon and the water have opposite chargesC. The balloon and the water have like chargesD. The balloon and the water are neutral
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If a simple circuit has one resistor of 3 ohms and a current of 3 amps, how many volts is the power source?
A. 3 voltsB. 6 voltsC. 9 voltsD. 19 volts
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If a simple circuit has one resistor of 3 ohms and a current of 3 amps, how many volts is the power source?
A. 3 voltsB. 6 voltsC. 9 voltsD. 19 volts
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Mrs. Davis’ toaster has a voltage of 60 volts and a current of 1.5 amps. What is the resistance of the heating element?
A. 40 ohmsB. 60 ohmsC. 90 ohmsD. 120 ohms
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Mrs. Davis’ toaster has a voltage of 60 volts and a current of 1.5 amps. What is the resistance of the heating element?
A. 40 ohmsB. 60 ohmsC. 90 ohmsD. 120 ohms
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Sally is making a solution of kool-aid by dissolving a package of cherry powdered kool-aid mix in a pitcher of water. What is the solvent in this solution?
A. Cherry flavored kool-aid powder mixB. The waterC. CherriesD. The spoon used to stir the solution
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Sally is making a solution of kool-aid by dissolving a package of cherry powdered kool-aid mix in a pitcher of water. What is the solvent in this solution?
A. Cherry flavored kool-aid powder mixB. The waterC. CherriesD. The spoon used to stir the solution
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During a water quality lab Sam tested a sample of water for nitrates by dissolving a testing powder in the water along with the required drops of sulfuric acid. Sam capped the test tube and vigorously mixed the solutions together by shaking. What is the solvent in this solution?
A. Sulfuric acidB. The testing powderC. The shaking of the test tubeD. The water sample
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During a water quality lab Sam tested a sample of water for nitrates by dissolving a testing powder in the water along with the required drops of sulfuric acid. Sam capped the test tube and vigorously mixed the solutions together by shaking. What is the solvent in this solution?
A. Sulfuric acidB. The testing powderC. The shaking of the test tubeD. The water sample
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Mandy wants to determine the density of a metallic object which is 40 g. She fills a graduated cylinder with water to the 50 mL mark and then gently places the metallic object in the graduated cylinder she just filled. The volume of water in the graduated cylinder with the metallic object moved from the 50 mL mark to the 75 mL mark. What is the density of the metallic object?
A. 0.53 g/mLB. 0.8 g/mLC. 1.6 g/mLD. 25 g/mL
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Mandy wants to determine the density of a metallic object which is 40 g. She fills a graduated cylinder with water to the 50 mL mark and then gently places the metallic object in the graduated cylinder she just filled. The volume of water in the graduated cylinder with the metallic object moved from the 50 mL mark to the 75 mL mark. What is the density of the metallic object?
A. 0.53 g/mLB. 0.8 g/mLC. 1.6 g/mLD. 25 g/mL
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When electricity is passed through water, the following decomposition reaction can occur: 2H2O 2H2 + O2
What does the law of conservation of matter tell you about the ratios of particles in the chemical reaction?
A. The reacting substances must be the same as the substances produced.
B. The number of reactant molecules must equal the number of product molecules.
C. The number of reactant compounds must equal the number of product compounds.
D. The number of atoms of each element must be equal on both sides of the reaction arrow.
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When electricity is passed through water, the following decomposition reaction can occur: 2H2O 2H2 + O2
What does the law of conservation of matter tell you about the ratios of particles in the chemical reaction?
A. The reacting substances must be the same as the substances produced.
B. The number of reactant molecules must equal the number of product molecules.
C. The number of reactant compounds must equal the number of product compounds.
D. The number of atoms of each element must be equal on both sides of the reaction arrow.
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What happens when you remove one of the light bulbs in a parallel circuit?
A. Only that light bulb will go dark.B. All of the light bulbs will go dark.C. The current in the circuit will increase.D. The resistance in the circuit will increase.
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What happens when you remove one of the light bulbs in a parallel circuit?
A. Only that light bulb will go dark.B. All of the light bulbs will go dark.C. The current in the circuit will increase.D. The resistance in the circuit will increase.
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When nitrogen gas (N2) and hydrogen gas (H2) are combined at a high temperature and under pressure, they turn into ammonia (NH3). Which is a balanced equation for this reaction?
A. N2 + 2H2 2(NH3)B. N2 + 3H2 2(NH3)C. N + 3H2 2(NH3)D. 2N2 + 3H2 2(NH3)
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When nitrogen gas (N2) and hydrogen gas (H2) are combined at a high temperature and under pressure, they turn into ammonia (NH3). Which is a balanced equation for this reaction?
A. N2 + 2H2 2(NH3)B. N2 + 3H2 2(NH3)C. N + 3H2 2(NH3)D. 2N2 + 3H2 2(NH3)
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Look at the reaction below.
Neutron + U-235 Kr-92 + Ba-142 + 2 neutrons + ENERGY
How do you know this reaction is a nuclear fission reaction?
A. Energy is releasedB. One large nucleus is split into two smaller nucleiC. There are more neutrons in the products than in the reactantsD. The mass of the reactants is greater than the mass of the
products.
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Look at the reaction below.
Neutron + U-235 Kr-92 + Ba-142 + 2 neutrons + ENERGY
How do you know this reaction is a nuclear fission reaction?
A. Energy is releasedB. One large nucleus is split into two smaller nucleiC. There are more neutrons in the products than in the reactantsD. The mass of the reactants is greater than the mass of the
products.
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Which of the electromagnetic waves has a frequency higher than visible light?
I. RadioII. MicrowaveIII. Ultraviolet
A. I onlyB. II only C. III onlyD. I and II only
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Which of the electromagnetic waves has a frequency higher than visible light?
I. RadioII. MicrowaveIII. Ultraviolet
A. I onlyB. II only C. III onlyD. I and II only