Physical Science Exam Review Questions

When a plastic rod is rubbed with fur, the plastic rod becomes negatively charged. Which statement explains the charge transfer between the plastic rod and the fur? Protons are transferred from the plastic rod to the fur. Protons are transferred from the fur to the plastic rod. Electrons are transferred from the plastic rod to the fur. Electrons are transferred from the fur to the plastic rod.

How do electrically charged objects affect neutral objects when they come in contact? Electrons move from negatively charged objects to neutral objects. Electrons move from neutral objects to negatively charged objects. Protons move from positively charged objects to neutral objects. Protons move from neutral objects to positively charged objects.

A series circuit has a 6-V battery and 3 ohms of resistance A series circuit has a 6-V battery and 3 ohms of resistance. How much current will flow through the circuit? 0.5 A 2 A 3 A 18 A

What voltage is required to run a 45-watt light bulb if the current is 0.5 ampere? 45 volts 90 volts 120 volts 225 volts

Which best describes a circuit in series? Different parts are on separate branches. Current values are different at various points in the circuit. Electrons may take several paths. Electrons have only one path at all times.

Which statement is true about parallel circuits? They contain separate branches through which current can flow. They are usually called open circuits. They provide one path through which current can flow. They cease to function when one part of the circuit is disconnected.

A _____________ is a kind of plastic that can be remelted and reused. Thermoplastic Thermos Thermoset Thermometer

Hydrocarbons with at least one triple bond are called __________. Alkanes Alkenes Alkynes Cycloalkanes

The processes involved in the rock cycle include all of the following EXCEPT ____. Condensation Erosion Weathering Compaction

Sedimentary rocks are ____. formed from magma a type of foliated igneous rock formed because of changes in temperature and pressure, or the presence of hot watery fluids formed when loose materials become pressed or cemented together

Eutrophication, a form of water pollution, is associated with: heated water waste from power plants over fertilization of water water-borne bacteria burning of fossil fuels

The environmental cost of hydroelectric power includes ________. increased biodiversity Desertification disruption of valley and river ecosystems water pollution

Which of the following is the most significant "greenhouse gas"? carbon dioxide CFCs methane water vapor

Which of the following organisms would be expected to have the highest concentration of mercury pollution in its tissues? the secondary consumers, such as sardines and herring primary producers such as aquatic plants, phytoplankton, and algae primary consumers, such as zooplankton the tertiary consumers, such as tuna and sharks

The ___________ is the reservoir that contains living things. Atmosphere Biosphere Lithosphere Hydrosphere

The phenomenon in which high levels of carbon dioxide cause global warming is known as: the Gaia hypothesis acid deposition the greenhouse effect global distillation

The main method of heat transfer that causes a pot of water to boil is: Conduction Convection Radiation

This type of heat transfer can occur in a vacuum: Conduction Convection Radiation

Which is the best example that something has kinetic energy? a car parked on a steep hill a tennis ball rolling across the court a picture hanging on the wall a piece of coal before it's burned