IGCSE Coordinated Science 0654

What is the atomic number of carbon?

• 8

• 3

• 6

• 12

In a chemical reaction, what are the reactants?

• Substances present after a chemical reaction

• Substances that are not involved in a chemical reaction

• Products of a chemical reaction

• Substances present at the beginning of a chemical reaction

What is the unit of force?

• Meter (m)

• Kilogram (kg)

• Second (s)

• Newton (N)

What is the SI unit of electric current?

• A

• C

• D

• B

Which organ in the human body is responsible for pumping blood?

• liver

• stomach

• heart

• kidney

What is the chemical formula for sulfuric acid?

• NaCl

• SO3

• H2O2

• H2SO4

What is the force that opposes the motion of objects through a fluid?

• drag

• thrust

• lift

• gravity

What is the SI unit of electric potential difference?

• volt (V)

• ohm (Ω)

• ampere (A)

• watt (W)

Which part of the human body is responsible for the sense of smell?

• Ear

• Elbow

• Nose

• Knee

What is the process of converting nitrogen gas into nitrates by bacteria called?

• Nitrogen extraction

• Nitrogen conversion

• Nitrogen transformation

• Nitrogen fixation