Am I Smart Quiz
Questions: 16 · 10 minutes
1. Two fair coins are tossed once. What is the probability of getting exactly one head?
1/4
1/2
3/4
1
2. Water is heated in an uncovered pot high in the mountains, where air pressure is lower than at sea level. Compared with sea level, what usually happens?
It cannot evaporate
It boils only after freezing
It boils at exactly the same temperature
It boils at a lower temperature
3. A student’s four test scores are 70, 80, 80, and 90. What is the arithmetic mean?
80
78
75
85
4. A town records that ice cream sales and sunburn cases both rise during the same months. What is the best conclusion from this information alone?
Eating ice cream directly causes sunburn
Sunburn directly causes people to buy ice cream
The matching pattern proves the two are unrelated
A third factor, such as sunny weather, may contribute to both
5. What primarily causes the Moon’s phases as viewed from Earth?
Earth’s shadow covers different parts of the Moon every month
We see changing portions of the Moon’s sunlit half as it orbits Earth
Clouds in Earth’s atmosphere obscure sections of the Moon
The Moon produces different amounts of light during its orbit
6. Why are antibiotics generally ineffective against illnesses such as the common cold?
Colds occur only when the weather is cold
Antibiotics treat pain but not infections
Colds are usually caused by viruses, while antibiotics target bacteria
Antibiotics work only on infections affecting the skin
7. Which artistic technique became especially associated with Renaissance efforts to create realistic depth on a flat surface?
Cuneiform writing
Linear perspective
Stained-glass leading
Movable-type printing
8. A solution changes from pH 7 to pH 5. Approximately how has its hydrogen ion concentration changed?
It has decreased by a factor of 2
It has increased by a factor of 5
It has increased by a factor of 100
It has remained unchanged because both values are below 10
9. What is the main reason Earth experiences seasons?
Earth moves much closer to and farther from the Sun each year
The Moon periodically blocks part of the Sun’s heat
The Sun produces substantially more energy in summer
Earth’s tilted axis changes the angle and duration of sunlight by season
10. A houseplant beside a window gradually bends toward the sunlight. Which process best explains this growth?
Transpiration, in which water evaporates from leaves
Phototropism, in which growth responds to light direction
Germination, in which a seed begins developing
Pollination, in which pollen reaches a reproductive structure
11. In a government with separate legislative, executive, and judicial branches, which branch generally interprets whether laws comply with the constitution?
The judicial branch
The executive branch
The legislative branch
The electoral branch
12. You spend Saturday working a paid shift instead of attending a free concert. In economics, what is the opportunity cost of that choice?
The value to you of the concert experience you gave up
The total revenue earned by your employer
The price that would have been charged for the concert
Only the money spent traveling to work
13. A recipe uses 3/4 cup of rice and you want to make twice as much. How much rice is needed?
2 cups
1 1/4 cups
1 3/4 cups
1 1/2 cups
14. Which source would be a primary source for studying a soldier’s personal experience during a historical war?
A recent documentary summarizing the war
A modern textbook chapter about the war
A diary the soldier wrote during the war
An encyclopedia article about military history
15. Which sentence contains a metaphor?
The class visited a zoo after lunch
The classroom sounded as loud as a zoo
After the announcement, the classroom was a zoo
The classroom had posters of zoo animals
16. If a major predator disappears from an ecosystem while other conditions remain similar, what is the most likely immediate effect on its main prey population?
It tends to increase because predation has decreased
It immediately disappears as well
It remains exactly the same
It becomes a different species