Quiz Name : Are you as smart as a grade 9 student?

Vecka : v33

MA 1. What is the least common multiple (LCM) of 12 and 18?

A - 24
B - 36
C - 54
D - ---

Korrekt svar : B - 36


BI 2. A gardener places one flowering plant inside a sealed, dark box for several days while keeping another identical plant in sunlight with enough water. Which process is most directly affected in the plant kept in the dark?

A - Pollination
B - Photosynthesis
C - Seed Germination
D - ---

Korrekt svar : B - Photosynthesis


GEO 3. Which mountain range forms the natural border between Europe and Asia and is often considered the boundary between the two continents?

A - Andes Mountains
B - Ural Mountains
C - Rocky Mountains
D - ---

Korrekt svar : B - Ural Mountains


CHEM 4. A student places equal volumes of cooking oil and water into separate containers. The oil has a lower density than the water. Which statement is correct?

A - The oil has a greater mass than the ...read more A - The oil has a greater mass than the water.
B - The water has a greater mass than th...read more B - The water has a greater mass than the oil.
C - The oil and water have the same mass...read more C - The oil and water have the same mass because they have the same volume.
D - ---

Korrekt svar : B - The water has a greater mass than the oil.


PHY 5. A worker uses a single fixed pulley to lift a 200 N load. Assuming there is no friction, what is the main advantage of using the fixed pulley?

A - It reduces the force needed to lift ...read more A - It reduces the force needed to lift the load by half.
B - It changes the direction of the appl...read more B - It changes the direction of the applied force without reducing its magnitude.
C - It doubles both the force and the di...read more C - It doubles both the force and the distance the load is lifted.
D - ---

Korrekt svar : B - It changes the direction of the applied force without reducing its magnitude.


SS 6. A company notices that the demand for a popular product increases while the supply remains the same. What is most likely to happen to the price of the product?

A - The price will decrease.
B - The price will increase.
C - The price will remain exactly the sa...read more C - The price will remain exactly the same.
D - ---

Korrekt svar : B - The price will increase.


PE 7. A basketball player quickly changes direction while moving around defenders without losing control of the ball. Which component of physical fitness is being demonstrated?

A - Flexibility
B - Agility
C - Strength
D - ---

Korrekt svar : B - Agility


MA 8. What is the value of the expression 18 ÷ (3 × 2) + 5?

A - 8
B - 11
C - 14
D - ---

Korrekt svar : A - 8


BI 9. A flower has bright petals but its stamens are removed before the pollen matures. What is the most likely result?

A - The flower can still produce seeds w...read more A - The flower can still produce seeds without pollen.
B - The flower cannot produce seeds unle...read more B - The flower cannot produce seeds unless it receives pollen from another flower.
C - The flower will immediately stop mak...read more C - The flower will immediately stop making food through photosynthesis.
D - ---

Korrekt svar : B - The flower cannot produce seeds unless it receives pollen from another flower.


GEO 10. Which river is the longest in South America and carries the largest volume of water in the world?

A - Nile River
B - Amazon River
C - Yangtze River
D - ---

Korrekt svar : B - Amazon River


CHEM 11. A student mixes iron filings with sand in a beaker. Which method is the best way to separate the two substances?

A - Use a magnet to remove the iron fili...read more A - Use a magnet to remove the iron filings.
B - Heat the mixture until the sand melt...read more B - Heat the mixture until the sand melts.
C - Add water so the iron dissolves.
D - ---

Korrekt svar : A - Use a magnet to remove the iron filings.


PHY 12. A ramp is 8 meters long and raises a box to a height of 2 meters. Assuming there is no friction, what is the ideal mechanical advantage (IMA) of the inclined plane?

A - 2
B - 4
C - 8
D - ---

Korrekt svar : B - 4


SS 13. A student starts a small business selling handmade bracelets. She uses money to buy materials, creates the products, and sells them for a higher price. What economic concept does this example best represent?

A - Entrepreneurship
B - Inflation
C - Importing
D - ---

Korrekt svar : A - Entrepreneurship


PE 14. A runner trains for a long-distance race by exercising for a longer time without getting tired quickly. Which component of physical fitness is the runner improving?

A - Endurance
B - Speed
C - Coordination
D - ---

Korrekt svar : A - Endurance


MA 15. Which of the following numbers is a prime number?

A - 21
B - 29
C - 35
D - ---

Korrekt svar : B - 29