WorksheetsScience Topics
Total questions: 16
Worksheet time: 8mins
What is the basic structural and functional unit of all living organisms?
molecule
organ
cell
tissue
Which organelle is known as the powerhouse of the cell?
Endoplasmic Reticulum
Mitochondria
Golgi Apparatus
Ribosomes
What is the process by which one substance is transformed into another substance?
Biological reaction
Physical reaction
Chemical reaction
Emotional reaction
In a chemical reaction, what are the substances present at the beginning called?
Catalysts
Products
Reactants
Intermediates
According to Newton's first law of motion, an object at rest tends to stay at rest unless acted upon by what?
an external force
a stationary force
a balanced force
a constant force
What is the formula for Newton's second law of motion?
F = mv
F = pa
F = ma^2
F = ma
What is the law that states for every action, there is an equal and opposite reaction?
Newton's Third Law of Motion
Einstein's Theory of Relativity
Boyle's Law
Archimedes' Principle
What is the smallest unit of an element that retains the properties of that element?
atom
nucleus
cell
molecule
Who is credited with the discovery of the electron?
Marie Curie
Isaac Newton
Albert Einstein
J.J. Thomson
What is the center of an atom called, containing protons and neutrons?
hub
centerpiece
core
nucleus
What is the charge of a proton?
Positive
Negative
Zero
Neutral
What is the charge of an electron?
1.6 x 10^-19 C
2.4 x 10^-19 C
-1.6 x 10^-19 C
-3.2 x 10^-19 C
What is the charge of a neutron?
Negative
Neutral
Positive
Charged
What is the atomic number of an element based on?
Number of neutrons
Number of electrons
Number of protons
Number of isotopes
What is the total number of protons and neutrons in an atom called?
Element number
Nuclear charge
Mass number
Atomic number
What is the term for the number of protons in the nucleus of an atom?
nuclear charge
elemental number
proton count
atomic number
