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Physical Science Essentials

Physical Science

A collection of intermediate-level questions covering core concepts in physics and chemistry.

physics chemistry science

15 Questions Medium Ages 13+ Jul 26, 2026

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About this Study Set

This study set covers Physical Science through 15 practice questions. A collection of intermediate-level questions covering core concepts in physics and chemistry. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Physical Science Essentials study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which subatomic particle carries a negative electrical charge?

A Proton
B Neutron
C Electron
D Positron

2 What is the unit of measurement for electrical resistance?

A Volt
B Ampere
C Ohm
D Watt

3 Which state of matter is defined by having a definite volume but no definite shape?

A Solid
B Liquid
C Gas
D Plasma

4 What is the process called when a substance changes directly from a solid to a gas?

A Condensation
B Sublimation
C Evaporation
D Deposition

5 Which law states that for every action, there is an equal and opposite reaction?

A Newton's First Law
B Newton's Second Law
C Newton's Third Law
D Archimedes' Principle

6 What is the primary gas that makes up the majority of Earth's atmosphere?

A Oxygen
B Carbon Dioxide
C Nitrogen
D Hydrogen

7 In chemistry, what does the pH scale measure?

A Temperature of a solution
B Acidity or alkalinity
C Density of a liquid
D Electrical conductivity

8 Which type of electromagnetic radiation has the longest wavelength?

A Radio waves
B X-rays
C Ultraviolet
D Gamma rays

9 What is the term for the energy an object possesses due to its motion?

A Potential energy
B Thermal energy
C Kinetic energy
D Chemical energy

10 Which element is the primary component of organic compounds?

A Oxygen
B Nitrogen
C Carbon
D Iron

11 What is the speed of light in a vacuum approximately?

A 300,000 km/s
B 150,000 km/s
C 1,000,000 km/s
D 3,000 km/s

12 Which force opposes the motion of two surfaces sliding past one another?

A Gravity
B Magnetism
C Friction
D Inertia

13 What process involves the splitting of an atomic nucleus into two or more smaller nuclei?

A Nuclear fusion
B Nuclear fission
C Radioactive decay
D Chemical synthesis

14 What is the chemical symbol for the element Gold?

A Gd
B Au
C Ag
D Fe

15 Which scale is the SI base unit for temperature?

A Celsius
B Fahrenheit
C Kelvin
D Rankine

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