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

Week : V6

MA 1. The mean of 5 observations is 24. If four observations are 10, 20, 30, and 40, what is the fifth observation?

A - 20
B - 30
C - 40
D - ---

Korrekt svar : B - 30


BI 2. Which type of joint allows the greatest range of motion in humans?

A - Hinge joint
B - Ball-and-socket joint
C - Pivot joint
D - ---

Korrekt svar : B - Ball-and-socket joint


GEO 3. Which factor primarily determines the climate of a region?

A - Latitude and distance from the sea
B - Daily weather conditions
C - Population density
D - ---

Korrekt svar : A - Latitude and distance from the sea


CHEM 4. Which of the following is a physical property of a substance?

A - Ability to burn (flammability)
B - Density
C - Reactivity with acid
D - ---

Korrekt svar : B - Density


PHY 5. A solar panel works by converting light into electricity. Which concept of modern physics explains how the sunlight generates electricity in the panel?

A - Light consists of photons that relea...read more A - Light consists of photons that release energy when they hit the solar panel.
B - Light only behaves as a continuous w...read more B - Light only behaves as a continuous wave and heats the panel.
C - Electricity is produced because sunl...read more C - Electricity is produced because sunlight contains heavy particles that move electrons.
D - ---

Korrekt svar : A - Light consists of photons that release energy when they hit the solar panel.


SS 6. Which of the following is a key feature of a democracy?

A - Citizens have the right to vote and ...read more A - Citizens have the right to vote and elect their representatives.
B - A single ruler makes all decisions w...read more B - A single ruler makes all decisions without input from the people.
C - The ruler inherits power through fam...read more C - The ruler inherits power through family lineage.
D - ---

Korrekt svar : A - Citizens have the right to vote and elect their representatives.


PE 7. Which of the following is the most important step to prevent injuries during sports activities?

A - Warming up before exercise
B - Wearing casual clothes
C - Drinking soda during the game
D - ---

Korrekt svar : A - Warming up before exercise


MA 8. The mean of 10 observations is 18. If the mean of the first 5 observations is 16, what is the mean of the remaining 5 observations?

A - 20
B - 18
C - 16
D - ---

Korrekt svar : A - 20


BI 9. When you bend your elbow, which muscle contracts and which relaxes?

A - Biceps contracts, triceps relaxes
B - Triceps contracts, biceps relaxes
C - Both biceps and triceps contract tog...read more C - Both biceps and triceps contract together
D - ---

Korrekt svar : A - Biceps contracts, triceps relaxes


GEO 10. Which of the following natural disasters can be directly linked to heavy rainfall and overflowing rivers?

A - Volcanic eruption
B - Flood
C - Earthquake
D - ---

Korrekt svar : B - Flood


CHEM 11. Which of the following substances would be attracted by a magnet?

A - Aluminum
B - Iron
C - Copper
D - ---

Korrekt svar : B - Iron


PHY 12. Which of the following is a correct example of energy quantization in real life?

A - A laser emits light in specific ener...read more A - A laser emits light in specific energy packets called photons.
B - A flashlight emits light continuousl...read more B - A flashlight emits light continuously without energy packets.
C - A candle produces heat and light ran...read more C - A candle produces heat and light randomly without quantization.
D - ---

Korrekt svar : A - A laser emits light in specific energy packets called photons.


SS 13. Which of the following is an example of a national symbol?

A - The country’s flag
B - A local park
C - A school uniform
D - ---

Korrekt svar : A - The country’s flag


PE 14. If a player suffers a minor cut during a game, what is the first step in basic first aid?

A - Apply pressure to stop the bleeding ...read more A - Apply pressure to stop the bleeding and clean the wound
B - Ignore it and continue playing
C - Rub the wound with dirt to stop blee...read more C - Rub the wound with dirt to stop bleeding
D - ---

Korrekt svar : A - Apply pressure to stop the bleeding and clean the wound


MA 15. The median of the following data is 25: 18, 20, x, 26, 30, 35, 40 What is the value of x?

A - 22
B - 25
C - 26
D - ---

Korrekt svar : B - 25