Dual Enrollment Physical Science Midterm Practice Test

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• Which of the following is NOT listed as a type of chemical change in basic chemistry?
• Distinguish between endothermic and exothermic processes.
• A negatively charged ion; A positively charged ion
• A worker lifts a 5 kg weight by 2 m in 2 s. What is the average power in watts? (g ≈ 9.8 m/s^2)
• Which symbol between reactants and products in a chemical equation represents a reversible reaction?
• Which weather feature refers to a high-pressure system where winds rotate clockwise in the Northern Hemisphere?
• What is the average mass assigned to one atom of a naturally occurring element?
• If sound A has an intensity 10 times that of sound B, by how many decibels is A louder?
• Which term describes the portion of sunlight reflected by Earth?
• Which hydrocarbons contain carbon-carbon double bonds?
• When multiplying 3.24 and 2.0, how many significant figures should the result have?
• Which instrument is used to measure atmospheric pressure?
• The study of atmospheric conditions and the prediction of weather is called what?
• In a chemical reaction, which electrons participate directly in bonding?
• What is the name for a reaction in which two compounds exchange ions to form two new compounds?
• The layer of Earth's atmosphere where humans live is the
• In a series circuit with resistors 3 Ω and 7 Ω, the total resistance is:
• A class of hydrocarbon which contains a hydroxyl (-OH) group is called
• Distinguish between systematic error and random error in measurements.
• In a parallel circuit, the equivalent resistance is always less than the smallest resistor.
• Which method primarily reduces random error in measurements?
• A constant force of 10 N acts on a 5 m displacement in the opposite direction to the motion. What is the work done by the force?
• A reaction that gives off energy to the surroundings is called
• Which statement best describes ionic bonds?
• The pair of bonding electrons is unequally shared, leading to a bond having a slightly positive end and a slightly negative end. What type of bonding is described?
• The formation of two new compounds from two original compounds is called
• What is the kinetic energy of a 1500 kg car moving at 20 m/s?
• Which gas is released during photosynthesis?
• Which cloud type is described as "layer" in the list?
• Which group forms rings composed of single bonded carbon atoms?
• Impulse equals change in momentum. If a 1.0 kg object experiences a 8 N force for 0.5 s, what is the resulting change in velocity? (Assume initial velocity is zero.)
• In a one-dimensional collision, a 2 kg puck moving at 4 m/s strikes a 3 kg stationary puck and the first puck comes to rest. What is the final velocity of the second puck?
• Buoyant force equals ρ g V. If water density is 1000 kg/m³ and V = 0.0001 m³, buoyant force is approximately:
• According to Charles' Law, if a gas occupies 22.4 L at 0°C, what volume does it occupy at 273°C, assuming ideal gas behavior?
• Which statement best describes how valence electrons influence ion formation?
• What tend to lose electrons from their valence shells when they become ions?
• What term refers to the insoluble solid that forms when two liquids are mixed?
• Which cloud type is described as "heap"?
• What term describes substances capable of causing cancer?
• The amount of water is the same as the _____.
• In chemical notation, the symbol (s) after a formula indicates the substance is in which phase?
• Which reaction type describes a hydrocarbon reacting with oxygen to form carbon dioxide and water?
• Which cloud type is described as "layer"?
• A rod of length 1.000 m expands by ΔL = α L0 ΔT with α = 1.2 × 10^-5 /°C and ΔT = 30°C. What is ΔL?
• Which term denotes a winter storm with significant snow accumulation?
• The period of a wave with a frequency of 60 Hz is approximately what?
• Members of the same group on the periodic table have the same number of _____
• If you lose at least _____ of your body water, it is fatal
• _____ are formed when air moves counterclockwise around a low pressure and clockwise around a high pressure.
• A 0.50 mol sample of an ideal gas at 1.00 atm and 25°C occupies what volume? Use R = 0.0821 L·atm/mol·K.
• Which term describes reactions that release energy as heat?
• Which coefficient in front of O2 yields a balanced equation for the formation of aluminum oxide from aluminum?
• Hydrologic Cycle is another name for the water cycle.
• Which property increases down a group and to the left on the periodic table?
• An object with density 0.5 g/cm³ is placed in a liquid with density 0.9 g/cm³. The object will:
• A reaction that absorbs energy from the surroundings is called
• Which notation indicates that a substance is in aqueous solution?
• Which cloud type is described as "curl"?
• Two or more forms of an element with different bonding structure in the same physical phase are called
• Which of the following best describes transition elements?
• The number of electron shells in an atom is determined by its what?
• A signal travels at the speed of light and takes 4.0 milliseconds to reach you from a satellite. How far is the satellite?
• What is the order of the dots needed to form Lewis symbols? [CLOCKWISE]
• Which notation indicates a gas phase?
• What is the sum of the atomic masses of all atoms in a compound as given in its chemical formula called?
• Which device is used to detect and monitor the location and movement of precipitation, especially in severe storms?
• The formation of a single element and a compound from a different element and compound is called
• The amount of _____ has decreased.
• Convert 15.0 miles to kilometers (1 mile ≈ 1.609 km).
• Which hydrocarbons are straight-chain and contain only single bonds between carbon atoms?
• Which atmospheric layer reflects and/or absorbs radio waves?
• What is the SI base unit for mass?
• A block with density 2.0 g/cm³ is placed in water (density 1.0 g/cm³). Will the block float or sink, and why?
• What is the fourth cloud type in the list?
• Which scale is used to measure tornado intensity?
• A thin lens with f = 10 cm forms an image when do = 15 cm. What is the magnification m of the image?
• A 1.00 mol sample of an ideal gas at 1.00 atm and 25°C occupies what volume? Use R = 0.0821 L·atm/mol·K.
• What are the new substances formed after a chemical reaction?
• Which notation indicates a solid phase?
• What is the molar mass of calcium carbonate (CaCO3)?
• According to Boyle's Law, a gas is at 1.00 atm and 5.00 L. If it is compressed isothermally to 2.50 L, what is the final pressure?
• Elements in Groups 3-12 are called what?
• Between nonmetals, which type of bond is formed by sharing electrons?
• In a freely falling object, which statement best describes mechanical energy?
• Which statement about noble gases is correct?
• How many cloud types are listed in the cloud types list?
• What is the average power required to lift a 6 kg mass through 3 meters in 2 seconds, using g ≈ 9.8 m/s^2?
• Which cloud type is listed as the first item in the cloud types list?
• What is the term for the outermost electron shell of an atom?
• The breaking down of one reactant into two or more components is called
• What term describes the fraction of insolation reflected by Earth?
• Which of the following is NOT a characteristic of metals?
• In the Northern Hemisphere, the Coriolis Force causes winds to deflect in which direction?
• The energy required to melt 200 g of ice at 0°C given ΔHf = 333.55 J/g is?
• Which instrument measures wind speed?
• From the equation 2 H2 + O2 -> 2 H2O, what is the mole ratio of H2 to H2O?
• Which gas is a greenhouse gas?
• Which term refers to a weather system with counterclockwise flow around a low pressure in the Northern Hemisphere?
• Which of the following are Group 1 elements?
• An isotope has 6 protons, 6 neutrons, and 6 electrons. What is its mass number and overall charge?
• Which three measurements are fundamental in atmospheric science?
• A thin lens with focal length f = 10 cm forms an image when the object is at do = 15 cm. What is the image distance di?
• Which statement best describes a common property of metals?
• Which law describes the relationship between pressure and volume at constant temperature?
• Why do ionic compounds form?
• In a chemical equation, the substances on the left-hand side are called what?
• Which cloud type appears second in the list?
• The _____ in the group tells the number of valence electrons in that element
• Jet streams are high-velocity winds that occur in which part of the atmosphere?
• Which of the following are two major forms of precipitation?
• What is the third cloud type in the list?
• An 80 g sample of water is heated from 20°C to 80°C. Using c = 4.18 J/g°C, how many joules of heat are required?
• In a balanced chemical equation, the coefficient indicates the number of molecules.
• What type of precipitation, other than rain, is commonly associated with thunderstorms?
• Which fundamental force binds protons together in the atomic nucleus?
• What type of chemical bonds are formed by sharing pairs of valence electrons?
• What type of compounds are primarily formed between two nonmetals?
• The symbol (aq) after a chemical formula indicates the substance is in what state?
• Which pair correctly labels a negatively charged ion and a positively charged ion?
• If a light ray strikes the interface from air into water at an incidence of 45°, what is the approximate refracted angle? (Assume n air = 1, n water = 1.33)
• List the electromagnetic spectrum in order from lowest to highest frequency.
• Which cloud type ends with the suffix 'bus' in its name?
• In a chemical equation, the substances on the right-hand side are called what?
• Which term refers to frost, the deposition of water vapor onto surfaces as ice?
• Which reaction type involves breaking a single compound into simpler substances?
• In the Stock system of nomenclature, the Roman numeral after the metal's name indicates what?
• How many joules are in one kilojoule?
• A measurement is read to the nearest 0.001 m. If the observed value is 1.2345 m, what is the properly recorded value?
• An isotope has atomic number Z = 11 and mass number A = 23. How many neutrons does it have?
• Formation of one product from two or more reactants is known as
• Tropical storms can turn into _____.
• Which chemical formula represents hydrochloric acid?
• Water covers about _____ of the Earth
• If a 2 kg object experiences a force of 6 N for 0.5 s starting from rest, what is its final velocity?
• A 50 g sample of water is heated from 20°C to 80°C. Using c = 4.18 J/g°C, how much energy is required?
• If a sample of water is heated from 20°C to 80°C, what is the temperature change ΔT?
• Which instrument is used to measure atmospheric pressure?
• There has been about a _____ increase in carbon dioxide in the atmosphere in the last 250 years
• _____ makes up approximately 78% of the air.
• Which bond is formed when two electrons pairs are shared between two atoms?
• Which trio are considered fundamental atmospheric measurements?
• _____ can be carcinogens.
• A 100 g sample of water is heated from 20°C to 80°C. Using c = 4.18 J/g°C, how much energy is required?
• A bond formed when two pairs of electrons are shared between two atoms is called a
• Which descriptor is associated with Cirrus in the cloud types list?
• A weather event commonly referred to as a twister is called what?
• Which of the following is an insoluble solid formed when two aqueous solutions react?
• In one mole of CO2, how many grams of carbon are present?
• Which meteorological term is named from the direction from which it comes?
• The numbers in front of chemical formulas in a balanced equation are called
• Which cloud type is described as "precipitation" in the cloud types list?
• The symbol (l) after a chemical formula indicates which phase?
• Which of the following represents the correctly balanced chemical equation for the reaction of aluminum with oxygen to form aluminum oxide?
• Radar is an acronym for which phrase?
• In a parallel circuit with resistors of 4 Ω and 6 Ω, what is the equivalent resistance?
• In a series circuit with resistors of 4 Ω and 6 Ω, what is the total resistance?
• Which statement defines an organic compound?
• The deposition of water vapor is known as which term?
• Which group on the periodic table is known for almost never forming compounds with other elements?
• The approximate increase in atmospheric carbon dioxide over the last 250 years is about what percent?
• The induced emf in a loop changes so that the induced current opposes the change in magnetic flux. This describes which principle?
• Tropical storms are measured by the _____
• Which statement best differentiates velocity from speed?
• What are the typical products of a neutralization reaction between an acid and a base?
• If 3 moles of O2 react according to 2 H2 + O2 → 2 H2O, how many moles of H2 are required?
• In an acid-base neutralization reaction, what are the products?
• A light ray enters water (n ≈ 1.33) from air (n ≈ 1.00) at 30°. Using Snell's law, what is the refracted angle approximately?
• A wave has frequency 20 Hz and wavelength 5 m. What is its speed?
• What are the original substances present before a chemical reaction takes place called?
• In Stock nomenclature, the number after the metal's name indicates what property?
• The symbol (g) after a chemical formula indicates which phase?
• In the reaction 2 H2 + O2 → 2 H2O, how many moles of H2 are needed per mole of O2?
• Which force causes moving objects to appear deflected in the Northern Hemisphere?
• Which instrument is used to measure humidity?
• The energy stored within chemical bonds is best described as which type of energy?
• Which statement about a period in the periodic table is correct?
• What is the fractional length change ΔL/L0 for the given thermal expansion values, ΔL = 0.00036 m, L0 = 1.000 m, ΔT = 30°C, α = 1.2 × 10^-5 /°C?
• What percentage of Earth's water is salt water?
• Elements in the same group tend to have similar _____
• The Sun's energy is stored by plants and trees in what form during photosynthesis as chemical energy?
• According to buoyancy principles, the buoyant force on an object is:
• What is the atomic number of carbon?
• Which hydrocarbons contain carbon-carbon triple bonds?
• Melting ice is which type of change?
• Which property explains why carbon can form many different organic compounds by covalent bonding?
• Which atmospheric layer is primarily responsible for reflecting and/or absorbing radio waves?
• Which of the following lists contains only diatomic elements?
• The symbol (cr) in a chemical formula indicates which phase?
• Which statement correctly identifies a characteristic of carbon in organic chemistry?
• Which number on the periodic table is most commonly used to predict an element's valence electrons?
• Which of the following is a vector quantity?
• Which cloud type appears last in the list?
• Another name for the water cycle is _____
• _____ is the element that makes up the largest percentage by mass in the human body.
• Which statement best describes polar covalent bonding?
• In the reaction 2 H2 + O2 -> 2 H2O, given 4.0 g H2 and 32.0 g O2, which reactant is limiting and how many grams of H2O can be produced?
• Vertical column on the periodic table is called a
• Which term describes the mass of a single atom relative to the mass of carbon-12?
• Which element is diatomic at room temperature?
• What term describes a rainstorm accompanied by thunder, lightning, and sometimes hail?
• What instrument is used to measure atmospheric pressure?
• What is the volume of a 250 g block with density 2.0 g/cm^3?
• The energy required to melt 100 g of ice at 0°C using the same latent heat value ΔHf = 333.55 J/g is?
• Convert 25°C to Kelvin.
• Jet streams are high-velocity winds that occur in which atmospheric layer?
• How long would light take to travel 1.20 × 10^6 meters, given the speed of light as 3.00 × 10^8 meters per second?
• Which process uses sunlight to convert carbon dioxide and water into glucose and oxygen?
• Which chemical formula represents ammonia?
• Horizontal row on the periodic table is called a
• In ordinary chemical reactions, if there is no reactant left in excess, what is the described relation between the products and the reactants?
• A 250 g block occupies 125 cm^3. What is its density in g/cm^3?
• In carbon dioxide (CO2), what percent by mass is carbon?
• Why do ionic bonds form?
• A 0.250 L volume of water displaced when an object is submerged exerts a buoyant force equal to ρ g V. If ρ water = 1000 kg/m³, V = 0.00025 m³, what is the buoyant force approximately?
• The principle that atoms tend to gain, lose or share valence electrons to achieve the same electron configurations as that of one of the noble gases.
• Elements in Group 2 are known as what?
• Which group on the periodic table is known as Chalcogens?
• Which type of bond typically forms between a metal and a nonmetal?
• What term describes the collective atmospheric conditions in the lower troposphere?
• Which law states that different samples of a pure compound always contain the same elements in the same proportion by mass?
• Which element tends to form triple bonds?
• An appreciable accumulation of snow is called what?
• Which chemical formula represents water?
• What is the mass number of an isotope with 6 protons and 6 neutrons?
• Which chemical formula represents sulfuric acid?
• What is a common unit for specific heat capacity in the metric system?
• In a one-dimensional collision, a 2 kg puck moving at 3 m/s strikes a 3 kg stationary puck and the first puck stops after the collision. What is the final velocity of the second puck?
• _____, _____, _____ and _____ are Greenhouse gases
• _____ of water on the Earth is salt water
• A car is moving with velocity in a certain direction and accelerates in the same direction. What is true about the relation between velocity and acceleration?
• Tornadoes are measured by the _____
• What do lower-case letters in parentheses after a chemical formula indicate?
• Which of the following is an organic compound?
• The temperature at which air becomes saturated is known as what?
• Which group tends to form salts with other elements?
• The reaction of a hydrocarbon with oxygen to produce carbon dioxide and water is called
• Halogens are known for which tendency?
• In a DC circuit with V = 60 V and R = 15 Ω, what is the current?