Unnamed: 0
int64 0
5.31k
| questionID
stringlengths 9
10
| lessonName
stringclasses 193
values | beingAsked
stringlengths 3
313
| imageName
stringclasses 590
values | imagePath
stringclasses 590
values | questionType
stringclasses 2
values | answerChoices
stringlengths 17
407
| correctAnswer
stringclasses 7
values |
|---|---|---|---|---|---|---|---|---|
5,200 | NDQ_017732 | mixtures | examples of mixtures include | null | null | Multiple Choice | a. lemonade., b. salad dressing., c. salt water., d. all of the above | d |
5,201 | NDQ_017734 | mixtures | a homogeneous mixture with particles too small to see or settle out is a | null | null | Multiple Choice | a. colloid., b. solution., c. suspension., d. compound. | b |
5,202 | NDQ_017735 | mixtures | an example of a colloid is | null | null | Multiple Choice | a. salt water., b. salad dressing., c. homogenized milk., d. none of the above | c |
5,203 | NDQ_017736 | mixtures | you can filter the particles out of | null | null | Multiple Choice | a. suspensions., b. colloids., c. solutions., d. all of the above | a |
5,204 | NDQ_017737 | mixtures | a colloid is a heterogeneous mixture. | null | null | Multiple Choice | a. true, b. false | b |
5,205 | NDQ_017739 | mixtures | the components of a mixture keep their physical properties when they combine. | null | null | Multiple Choice | a. true, b. false | a |
5,206 | NDQ_017740 | mixtures | components of mixtures can be separated by physical processes. | null | null | Multiple Choice | a. true, b. false | a |
5,207 | NDQ_017931 | ohms law | a source of voltage is required for an electric current to flow. | null | null | Multiple Choice | a. true, b. false | a |
5,208 | NDQ_017933 | ohms law | the amount of current flowing through a wire will be less when there is greater | null | null | Multiple Choice | a. voltage., b. resistance., c. electric potential energy., d. two of the above | b |
5,209 | NDQ_017934 | ohms law | which equation represents ohms law? | null | null | Multiple Choice | a. Current = Voltage x Resistance, b. Current = Voltage/Resistance, c. Current = Resistance/Voltage, d. none of the above | b |
5,210 | NDQ_017937 | ohms law | ohms law can be used to calculate current when voltage and resistance are known. | null | null | Multiple Choice | a. true, b. false | a |
5,211 | NDQ_017938 | ohms law | assume that an electric wire is connected to a 9-volt battery and the wire has a resistance of 3 ohms. how much current is flowing through the wire? | null | null | Multiple Choice | a. 27 amps, b. 12 amps, c. 9 amps, d. 3 amps | d |
5,212 | NDQ_017992 | physical change | some physical changes involve chemical reactions. | null | null | Multiple Choice | a. true, b. false | b |
5,213 | NDQ_017993 | physical change | a physical change can result in an entirely different substance. | null | null | Multiple Choice | a. true, b. false | b |
5,214 | NDQ_017994 | physical change | physical changes can be brought about by | null | null | Multiple Choice | a. cutting., b. bending., c. dissolving., d. all of the above | d |
5,215 | NDQ_017995 | physical change | physical changes include changes in the state of matter. | null | null | Multiple Choice | a. true, b. false | a |
5,216 | NDQ_017996 | physical change | all of the following processes cause physical changes in matter except | null | null | Multiple Choice | a. burning., b. melting., c. freezing., d. boiling. | a |
5,217 | NDQ_018000 | physical properties of matter | physical properties of matter are properties that can be measured or observed without matter changing to an entirely different substance. | null | null | Multiple Choice | a. true, b. false | a |
5,218 | NDQ_018002 | physical properties of matter | melting point is an example of a physical property of matter. | null | null | Multiple Choice | a. true, b. false | a |
5,219 | NDQ_018003 | physical properties of matter | which of the following abilities is not a physical property of matter? | null | null | Multiple Choice | a. ability to conduct heat, b. ability to conduct electricity, c. ability to dissolve in other substances, d. ability to react chemically with other substances | d |
5,220 | NDQ_018004 | physical properties of matter | the color of an object is a physical property. | null | null | Multiple Choice | a. true, b. false | a |
5,221 | NDQ_018009 | physical properties of matter | physical properties include | null | null | Multiple Choice | a. boiling point., b. freezing point., c. flammability., d. two of the above | d |
5,222 | NDQ_018022 | plasma | plasma has the ability to | null | null | Multiple Choice | a. conduct electricity., b. glow with colored light., c. respond to a magnetic field., d. all of the above | d |
5,223 | NDQ_018023 | plasma | you see naturally occurring plasma when you view | null | null | Multiple Choice | a. lightning., b. rainbows., c. the moon., d. all of the above | a |
5,224 | NDQ_018025 | plasma | one use of artificial plasma is making fluorescent lights. | null | null | Multiple Choice | a. true, b. false | a |
5,225 | NDQ_018026 | plasma | plasma is more similar to gases than to liquids or solids. | null | null | Multiple Choice | a. true, b. false | a |
5,226 | NDQ_018029 | plasma | plasma can be used to etch the surface of silicon for computers. | null | null | Multiple Choice | a. true, b. false | a |
5,227 | NDQ_018110 | properties of solutions | salt water has a lower freezing point than pure water. | null | null | Multiple Choice | a. true, b. false | a |
5,228 | NDQ_018113 | properties of solutions | when a solute dissolves in a solvent, it changes the chemical properties of the solvent. | null | null | Multiple Choice | a. true, b. false | b |
5,229 | NDQ_018114 | properties of solutions | a solute generally raises the freezing point of a solvent. | null | null | Multiple Choice | a. true, b. false | b |
5,230 | NDQ_018117 | properties of solutions | when antifreeze is added to water in a car radiator it causes | null | null | Multiple Choice | a. boiling point elevation., b. freezing point depression., c. changes in the physical properties of the water., d. all of the above | d |
5,231 | NDQ_018119 | properties of solutions | pure water boils at a temperature of 100 c. at which temperature might salt water boil? | null | null | Multiple Choice | a. 98 °C, b. 99 °C, c. 100 °C, d. 101 °C | d |
5,232 | NDQ_018193 | rate of dissolving | if you stir a solute into a solvent | null | null | Multiple Choice | a. more solute will dissolve., b. the solution will be more concentrated., c. the solute will dissolve more quickly., d. all of the above | c |
5,233 | NDQ_018195 | rate of dissolving | sugar will dissolve more quickly in ice tea than in hot tea. | null | null | Multiple Choice | a. true, b. false | b |
5,234 | NDQ_018196 | rate of dissolving | you could speed up the rate of salt dissolving in a bottle of water by shaking the bottle. | null | null | Multiple Choice | a. true, b. false | a |
5,235 | NDQ_018198 | rate of dissolving | if you stir a mixture long enough, you can dissolve any amount of solute in a given solvent. | null | null | Multiple Choice | a. true, b. false | b |
5,236 | NDQ_018220 | refraction | light always travels at the same speed across space. | null | null | Multiple Choice | a. true, b. false | a |
5,237 | NDQ_018221 | refraction | light travels more quickly through a medium than across space. | null | null | Multiple Choice | a. true, b. false | b |
5,238 | NDQ_018222 | refraction | through which of the following media does visible light travel most quickly? | null | null | Multiple Choice | a. air, b. water, c. vegetable oil, d. diamond | a |
5,239 | NDQ_018223 | refraction | when light passes from air to glass it slows down. | null | null | Multiple Choice | a. true, b. false | a |
5,240 | NDQ_018225 | refraction | the process described in question 5 to will occur if light rays enter the new medium | null | null | Multiple Choice | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b |
5,241 | NDQ_018226 | refraction | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | null | Multiple Choice | a. true, b. false | a |
5,242 | NDQ_018227 | refraction | the greatest refraction of light will occur when light passes from air to | null | null | Multiple Choice | a. diamond., b. water., c. glass., d. alcohol. | a |
5,243 | NDQ_018282 | saturation | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | null | Multiple Choice | a. true, b. false | a |
5,244 | NDQ_018284 | saturation | which sugar-water solution is saturated? | null | null | Multiple Choice | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c |
5,245 | NDQ_018286 | saturation | which saltwater solution is unsaturated? | null | null | Multiple Choice | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a |
5,246 | NDQ_018288 | saturation | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | null | Multiple Choice | a. true, b. false | a |
5,247 | NDQ_018332 | scientific measuring devices | the amount of matter in an object is its volume. | null | null | Multiple Choice | a. true, b. false | b |
5,248 | NDQ_018334 | scientific measuring devices | a graduated cylinder is used to measure length. | null | null | Multiple Choice | a. true, b. false | b |
5,249 | NDQ_018335 | scientific measuring devices | the lowest point on the curved surface of a liquid is called the | null | null | Multiple Choice | a. fill line., b. beam., c. meniscus., d. none of the above | c |
5,250 | NDQ_018337 | scientific measuring devices | in science, volume may be measured in | null | null | Multiple Choice | a. cups., b. milliliters., c. centimeters., d. kilograms. | b |
5,251 | NDQ_018409 | series and parallel circuits | all electric circuits consist of at least one closed loop. | null | null | Multiple Choice | a. true, b. false | a |
5,252 | NDQ_018412 | series and parallel circuits | what happens if a one-loop circuit is interrupted at any point? | null | null | Multiple Choice | a. No current will flow through the circuit., b. No devices in the circuit will work., c. The current will flow more slowly through the circuit., d. two of the above | d |
5,253 | NDQ_018413 | series and parallel circuits | series circuits are no longer in use any more. | null | null | Multiple Choice | a. true, b. false | b |
5,254 | NDQ_018415 | series and parallel circuits | what happens if one loop of a two-loop circuit is interrupted at any point? | null | null | Multiple Choice | a. Current will still flow through the other loop., b. Current will stop flowing through the other loop., c. The other loop will become overloaded and burn out., d. two of the above | a |
5,255 | NDQ_018416 | series and parallel circuits | the wiring in a house consists of parallel circuits. | null | null | Multiple Choice | a. true, b. false | a |
5,256 | NDQ_018441 | solenoid | a solenoid has a magnetic field like a bar magnet. | null | null | Multiple Choice | a. true, b. false | a |
5,257 | NDQ_018443 | solenoid | a straight wire has a stronger magnetic field than a coiled wire. | null | null | Multiple Choice | a. true, b. false | b |
5,258 | NDQ_018444 | solenoid | what explains the correct answer to question 5? | null | null | Multiple Choice | a. Each turn in a coil of wire has its own magnetic field., b. The magnetic field of a wire is weakened when the wire is coiled., c. Coiling a wire decreases the amount of current flowing through it., d. two or the above | a |
5,259 | NDQ_018446 | solenoid | solenoids are used in | null | null | Multiple Choice | a. paintball markers., b. motor vehicles., c. electric dishwashers., d. all of the above | d |
5,260 | NDQ_018447 | solenoid | solenoids are often used to provide a burst of energy to move a specific part of a device. | null | null | Multiple Choice | a. true, b. false | a |
5,261 | NDQ_018450 | solids | the particles of solids are more tightly packed together than the particles of other states of matter. | null | null | Multiple Choice | a. true, b. false | a |
5,262 | NDQ_018453 | solids | which statement about solids is false? | null | null | Multiple Choice | a. Solids have a fixed shape., b. Solids have a fixed volume., c. All solids have the same structure., d. none of the above | c |
5,263 | NDQ_018454 | solids | examples of amorphous solids include | null | null | Multiple Choice | a. table salt., b. quartz., c. plastic., d. two of the above | c |
5,264 | NDQ_018455 | solids | amorphous solids have particles that are arranged randomly. | null | null | Multiple Choice | a. true, b. false | a |
5,265 | NDQ_018461 | solubility | for a given solvent, all solutes have the same solubility. | null | null | Multiple Choice | a. true, b. false | b |
5,266 | NDQ_018462 | solubility | less sugar can dissolve in cold water than in hot water. | null | null | Multiple Choice | a. true, b. false | a |
5,267 | NDQ_018463 | solubility | less carbon dioxide can dissolve in cold water than in hot water. | null | null | Multiple Choice | a. true, b. false | b |
5,268 | NDQ_018464 | solubility | increasing the pressure on a gas increases its solubility. | null | null | Multiple Choice | a. true, b. false | a |
5,269 | NDQ_018465 | solubility | which of the following substances is least soluble in water? | null | null | Multiple Choice | a. table salt, b. table sugar, c. baking soda, d. Epsom salt | c |
5,270 | NDQ_018467 | solubility | the solubility of a gaseous solute depends on | null | null | Multiple Choice | a. its temperature., b. the pressure on it., c. the solvent., d. all of the above | d |
5,271 | NDQ_018468 | solubility | you could increase the solubility of sugar in water by | null | null | Multiple Choice | a. putting the water under greater pressure., b. heating the water., c. stirring the water., d. all of the above | b |
5,272 | NDQ_018471 | solute and solvent | the solute in a solution is the substance that | null | null | Multiple Choice | a. dissolves the other substance., b. is present in greater amount., c. separates into individual particles., d. all of the above | c |
5,273 | NDQ_018473 | solute and solvent | matter in any state can be the solute or solvent in a solution. | null | null | Multiple Choice | a. true, b. false | a |
5,274 | NDQ_018474 | solute and solvent | in the solution called air, the solvent is | null | null | Multiple Choice | a. oxygen., b. carbon dioxide., c. water vapor., d. nitrogen. | d |
5,275 | NDQ_018476 | solute and solvent | which of the following examples illustrates the phrase, like dissolves like? | null | null | Multiple Choice | a. Water dissolves sugar., b. Paint thinner dissolves oil-based paint., c. Acetone dissolves nail polish., d. all of the above | d |
5,276 | NDQ_018477 | solute and solvent | when covalent compounds dissolve, they separate into individual | null | null | Multiple Choice | a. atoms., b. ions., c. molecules., d. crystals. | c |
5,277 | NDQ_018480 | solution concentration | the substance that dissolves in a solution is called the solvent. | null | null | Multiple Choice | a. true, b. false | b |
5,278 | NDQ_018482 | solution concentration | a solution with a small amount of solute for a given amount of solution is called | null | null | Multiple Choice | a. weak., b. dilute., c. unsaturated., d. insoluble. | b |
5,279 | NDQ_018483 | solution concentration | a concentrated solution has a lot of solvent for a given amount of solution. | null | null | Multiple Choice | a. true, b. false | b |
5,280 | NDQ_018484 | solution concentration | the concentration of a solution is the ratio of solute to solvent. | null | null | Multiple Choice | a. true, b. false | b |
5,281 | NDQ_018486 | solution concentration | a 2000-g sugar-water solution contains 200 g of sugar. the concentration of the solution is | null | null | Multiple Choice | a. 1 percent., b. 9 percent., c. 10 percent., d. 12 percent. | c |
5,282 | NDQ_018487 | solution concentration | todd made a saltwater solution containing 100 g of salt and 900 g of water. what is the concentration of the solution? | null | null | Multiple Choice | a. 9 percent, b. 10 percent, c. 11 percent, d. 12 percent | b |
5,283 | NDQ_018489 | solutions | a solution is any mixture of two or more substances. | null | null | Multiple Choice | a. true, b. false | b |
5,284 | NDQ_018491 | solutions | dissolved particles in a solution | null | null | Multiple Choice | a. are too small to be seen., b. will settle out of the solution., c. will rise to the top of the solution., d. two of the above | a |
5,285 | NDQ_018496 | solutions | only liquids can form solutions. | null | null | Multiple Choice | a. true, b. false | b |
5,286 | NDQ_018497 | solutions | examples of solutions include | null | null | Multiple Choice | a. air., b. salt water., c. bronze., d. all of the above | d |
5,287 | NDQ_018498 | solutions | which of the following substances is insoluble in water? | null | null | Multiple Choice | a. limestone, b. vinegar, c. oil, d. two of the above | c |
5,288 | NDQ_018521 | specific heat | specific heat is a physical property of matter. | null | null | Multiple Choice | a. true, b. false | a |
5,289 | NDQ_018522 | specific heat | a substance with high specific heat heats and cools quickly. | null | null | Multiple Choice | a. true, b. false | b |
5,290 | NDQ_018523 | specific heat | metals have relatively high specific heats. | null | null | Multiple Choice | a. true, b. false | b |
5,291 | NDQ_018524 | specific heat | which of the following substances has the lowest specific heat? | null | null | Multiple Choice | a. iron, b. sand, c. wood, d. water | a |
5,292 | NDQ_018525 | specific heat | the specific heat of water is | null | null | Multiple Choice | a. 0.18 J/g., b. 0.67 J/g., c. 1.76 J/g., d. 4.18 J/g. | d |
5,293 | NDQ_018526 | specific heat | lead has a very low specific heat. | null | null | Multiple Choice | a. true, b. false | a |
5,294 | NDQ_018550 | states of matter | which of the following substances usually exists in the liquid state on earth? | null | null | Multiple Choice | a. nitrogen, b. mercury, c. iron, d. none of the above | b |
5,295 | NDQ_018552 | states of matter | the state in which matter takes on the shape but not the volume of its container is | null | null | Multiple Choice | a. gas., b. solid., c. liquid., d. plasma. | c |
5,296 | NDQ_018553 | states of matter | the only state in which matter has a fixed shape is | null | null | Multiple Choice | a. gas., b. solid., c. liquid., d. plasma. | b |
5,297 | NDQ_018558 | states of matter | for matter to change from a liquid to a solid involves a loss of energy. | null | null | Multiple Choice | a. true, b. false | a |
5,298 | NDQ_018570 | sublimation | sublimation is an example of a change of state. | null | null | Multiple Choice | a. true, b. false | a |
5,299 | NDQ_018571 | sublimation | which of the following substances changes directly from a solid to a gas at room temperature? | null | null | Multiple Choice | a. naphthalene, b. water ice, c. snow, d. two of the above | a |