Q. What is the term for a substance that increases the concentration of hydrogen ions in a solution?
-
A.
Base
-
B.
Acid
-
C.
Salt
-
D.
Neutral
Solution
An acid increases the concentration of hydrogen ions in a solution.
Correct Answer: B — Acid
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Q. What is the unit of force? (2020)
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A.
Newton
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B.
Joule
-
C.
Pascal
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D.
Watt
Solution
The unit of force is Newton (N).
Correct Answer: A — Newton
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Q. What part of the brain controls balance and coordination?
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A.
Cerebrum
-
B.
Cerebellum
-
C.
Brainstem
-
D.
Thalamus
Solution
The cerebellum controls balance and coordination.
Correct Answer: B — Cerebellum
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Q. What type of energy is stored in a compressed spring? (2023)
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A.
Kinetic energy
-
B.
Potential energy
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C.
Thermal energy
-
D.
Chemical energy
Solution
The energy stored in a compressed spring is potential energy.
Correct Answer: B — Potential energy
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Q. Which disease is caused by a deficiency of insulin? (2023)
-
A.
Diabetes
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B.
Hypertension
-
C.
Asthma
-
D.
Cancer
Solution
Diabetes is caused by a deficiency of insulin.
Correct Answer: A — Diabetes
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Q. Which gas is produced when an acid reacts with a metal? (2022)
-
A.
Oxygen
-
B.
Hydrogen
-
C.
Carbon dioxide
-
D.
Nitrogen
Solution
Hydrogen gas is produced when an acid reacts with a metal.
Correct Answer: B — Hydrogen
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Q. Which law states that an object in motion stays in motion unless acted upon by an external force? (2023)
-
A.
Newton's First Law
-
B.
Newton's Second Law
-
C.
Newton's Third Law
-
D.
Law of Conservation of Energy
Solution
Newton's First Law states that an object in motion stays in motion unless acted upon by an external force.
Correct Answer: A — Newton's First Law
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Q. Which of the following is a base? (2020)
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A.
HCl
-
B.
NaOH
-
C.
H2SO4
-
D.
CH3COOH
Solution
Sodium hydroxide (NaOH) is a common example of a base.
Correct Answer: B — NaOH
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Q. Which of the following is a characteristic of a solid? (2022)
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A.
Definite shape
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B.
Definite volume
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C.
Incompressible
-
D.
All of the above
Solution
Solids have a definite shape, definite volume, and are generally incompressible.
Correct Answer: D — All of the above
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Q. Which of the following is a conductor of electricity? (2021)
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A.
Rubber
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B.
Wood
-
C.
Copper
-
D.
Glass
Solution
Copper is a good conductor of electricity, while rubber, wood, and glass are insulators.
Correct Answer: C — Copper
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Q. Which of the following is a non-renewable source of energy? (2020)
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A.
Solar
-
B.
Wind
-
C.
Coal
-
D.
Hydro
Solution
Coal is considered a non-renewable source of energy as it takes millions of years to form.
Correct Answer: C — Coal
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Q. Which organ in the human body is primarily responsible for detoxification? (2023)
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A.
Heart
-
B.
Liver
-
C.
Kidney
-
D.
Lungs
Solution
The liver is primarily responsible for detoxifying harmful substances in the body.
Correct Answer: B — Liver
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Q. Which organ is responsible for pumping blood throughout the body? (2021)
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A.
Lungs
-
B.
Heart
-
C.
Liver
-
D.
Kidneys
Solution
The heart is responsible for pumping blood throughout the body.
Correct Answer: B — Heart
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Q. Which part of the brain controls balance and coordination? (2021)
-
A.
Cerebrum
-
B.
Cerebellum
-
C.
Brainstem
-
D.
Thalamus
Solution
The cerebellum controls balance and coordination.
Correct Answer: B — Cerebellum
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Q. Which part of the cell is known as the powerhouse? (2023)
-
A.
Nucleus
-
B.
Ribosome
-
C.
Mitochondria
-
D.
Chloroplast
Solution
Mitochondria are known as the powerhouse of the cell because they produce energy in the form of ATP.
Correct Answer: C — Mitochondria
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Q. Which part of the human body is responsible for producing insulin?
-
A.
Pancreas
-
B.
Liver
-
C.
Stomach
-
D.
Spleen
Solution
The pancreas is responsible for producing insulin.
Correct Answer: A — Pancreas
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Q. Which system in the body is primarily responsible for fighting infections?
-
A.
Nervous System
-
B.
Digestive System
-
C.
Immune System
-
D.
Respiratory System
Solution
The immune system is primarily responsible for fighting infections.
Correct Answer: C — Immune System
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Q. Which system is responsible for the exchange of gases in the body? (2023)
-
A.
Digestive system
-
B.
Nervous system
-
C.
Respiratory system
-
D.
Circulatory system
Solution
The respiratory system is responsible for the exchange of gases in the body.
Correct Answer: C — Respiratory system
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Q. Which vitamin is produced when a person is exposed to sunlight? (2023)
-
A.
Vitamin A
-
B.
Vitamin B
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Vitamin D is produced in the skin when it is exposed to sunlight.
Correct Answer: D — Vitamin D
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Showing 31 to 49 of 49 (2 Pages)