id
stringclasses 4
values | question
stringclasses 4
values | choices
dict | answerKey
stringclasses 4
values | rationale
stringclasses 4
values |
|---|---|---|---|---|
Mercury_SC_415702 | George wants to warm his hands quickly by rubbing them. Which skin surface will produce the most heat? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"dry palms",
"wet palms",
"palms covered with oil",
"palms covered with lotion"
]
} | A | Dry surfaces will more likely cause more friction via rubbing than other smoother surfaces, hence dry palms will produce the most heat. |
Mercury_7220990 | Which factor will most likely cause a person to develop a fever? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"a leg muscle relaxing after exercise",
"a bacterial population in the bloodstream",
"several viral particles on the skin",
"carbohydrates being digested in the stomach"
]
} | B | Option B, bacterial population is the most likely cause for a person developing fever. |
Mercury_7205118 | Which change in the state of water particles causes the particles to become arranged in a fixed position? | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"boiling",
"melting",
"freezing",
"evaporating"
]
} | C | When water is freezed, the particles are arranged in a fixed position; the particles are still moving for all other options. |
Mercury_SC_401169 | When a switch is used in an electrical circuit, the switch can | {
"label": [
"A",
"B",
"C",
"D"
],
"text": [
"cause the charge to build.",
"increase and decrease the voltage.",
"cause the current to change direction.",
"stop and start the flow of current."
]
} | D | The function of a switch is to start and stop the flow of a current. |