IPC Final Review
Quiz by Ms. Kotara
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- Q 1/20Score 0A car traveling on a level road initially has 440 kJ of mechanical energy. After the brakes are applied for a few seconds, the car has only 110 kJ of mechanical energy. What best accounts for the missing mechanical energy?29Most of the missing mechanical energy has been converted to gravitational potential energy.Most of the missing mechanical energy has been converted to heat energy through friction.Half the missing mechanical energy has been converted to heat energy, and the other half has been destroyed.Half the missing mechanical energy has been converted to kinetic energy, and the other half has been converted to potential energy
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- Q1A car traveling on a level road initially has 440 kJ of mechanical energy. After the brakes are applied for a few seconds, the car has only 110 kJ of mechanical energy. What best accounts for the missing mechanical energy?Most of the missing mechanical energy has been converted to gravitational potential energy.Most of the missing mechanical energy has been converted to heat energy through friction.Half the missing mechanical energy has been converted to heat energy, and the other half has been destroyed.Half the missing mechanical energy has been converted to kinetic energy, and the other half has been converted to potential energy30s
- Q2Which statement best explains the difference between light waves traveling through a vacuum and light waves traveling through a medium?Light waves traveling through a vacuum are transverse, but light waves traveling through a medium are longitudinal.Light waves traveling through a vacuum have a shorter wavelength than light waves traveling through a medium.Light waves traveling through a vacuum travel faster than light waves traveling through a medium.Light waves traveling through a vacuum have no mass, but light waves traveling through a medium have a mass greater than zero.30s
- Q3An engineer is designing an instrument to examine the interior of a piece of wood without cutting it. The engineer decides to pass electromagnetic radiation through the wood to a detector on the other side. Which type of electromagnetic radiation would be most suitable for this investigation?Radio wavesUltraviolet lightVisible lightX-rays30s
- Q4Which of the following is not a benefit of nuclear energy?Fewer plants required to power a countryZero carbon dioxide emissionMore energy produced per gram of reactantRadioactive waste30s
- Q5Which spring will have the most elastic potential energy?HGFJ30s
- Q6Which is true regarding wave A and wave B?Wave A has higher wavelength; wave B has lower energyWave A has higher frequency; wave B has longer wave lengthWave A has lower energy; Wave B has lower wavelengthWave A has longer wavelength; Wave B has higher frequency30s
- Q7Which of the following does not describe an exothermic reaction?The reaction feels warm to the touchEnergy of the products is higher than the energy of the reactantsQ is a positive numberSee the picture30s
- Q8Which of these best describes the energy transformation that occurs during the reaction in the picture?Thermal energy → kinetic energyKinetic energy → potential energyPotential energy → chemical energyChemical energy → thermal energy30s
- Q9When the equation in the picture is balanced, what is the coefficient for oxygen?342530s
- Q10How does balancing chemical equations related to the conservation of mass?By balancing equations we are ensuring that the mass of the reactants equals the mass of the products.By balancing chemical equations we ensure that we have enough reactants for a reaction to work properly.By balancing equations we ensure that we are conserving the amount of reactants so that we eliminate as much waste as possible.By balancing equations we are ensuring that the energy going into a reaction is equal to the energy exiting the reaction.45s
- Q11The picture represents a nuclear reaction. Which of the following best describes this reaction?Nuclear fusion is occurring because many smaller nuclei are being fused.Nuclear fusion is occurring because many energetic neutrons are being emitted.Nuclear fission is occurring because large amounts of energy are being absorbed.Nuclear fission is occurring because a nucleus is being split into smaller nuclei.45s
- Q12A sample of a compound is added to distilled water in a clean beaker. A reaction occurs, and the water temperature drops rapidly. Which of the following statements is best supported by this observation?An endothermic reaction occurred.A dehydration reaction occurred.The beaker was contaminated by another compound.The water was originally warmer than the compound.45s
- Q13What is the mass number of the missing particle in the reaction in the picture? Use the second picture to pick your answer.31/15 P24/11 Ga24/11 Cr24/11 Na45s
- Q14A form of technetium-99 has a half-life of approximately 6 hours. Would this reaction be considered fission or fusion?Fusion: Two molecules combine to form one large moleculeFusion: One molecule becomes multiple moleculesFission: Two molecules combine to form one large moleculeFission: One molecule becomes multiple molecules45s
- Q15Identify points A and B on the wave in the picture.A=Crest; B=TroughA=Crest; B=AmplitudeA=Wavelength; B=TroughA=Wavelength; B=Amplitude45s
