About this Study Set
This study set covers Physics through
18 practice questions.
Challenging, fact-based multiple-choice questions covering core middle school physics concepts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Middle School Physics Mastery study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the SI unit for luminous intensity, a measure of the visible light emitted from a source?
-
A
Lux
-
B
Candela
-
C
Lumen
-
D
Watt
2
Which of the following is an example of an exothermic reaction, releasing thermal energy into its surroundings?
-
A
Melting of ice
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B
Evaporation of water
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C
Combustion of wood
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D
Dissolving of sugar in water
3
In a series circuit, if the resistance of one component increases, what happens to the total current flowing through the circuit, assuming the voltage remains constant?
-
A
It increases
-
B
It decreases
-
C
It remains the same
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D
It becomes zero
4
What phenomenon causes a rainbow to form by the dispersion of sunlight into its constituent colors?
-
A
Diffraction
-
B
Reflection
-
C
Refraction
-
D
Interference
5
Which type of electromagnetic radiation has the shortest wavelength and highest frequency, making it highly energetic?
-
A
Infrared radiation
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B
Ultraviolet radiation
-
C
Gamma rays
-
D
Radio waves
6
What is the principle that states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel?
-
A
Archimedes' Principle
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B
Bernoulli's Principle
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C
Pascal's Principle
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D
Huygens' Principle
7
A transformer uses which physical principle to change the voltage of alternating current?
-
A
Ohm's Law
-
B
Faraday's Law of Induction
-
C
Ampere's Law
-
D
Coulomb's Law
8
Which of Newton's Laws of Motion states that for every action, there is an equal and opposite reaction?
-
A
First Law
-
B
Second Law
-
C
Third Law
-
D
Law of Universal Gravitation
9
What is the SI unit of power, defined as the rate at which work is done or energy is transferred?
-
A
Joule
-
B
Watt
-
C
Newton
-
D
Pascal
10
When light passes from a denser medium to a less dense medium, and the angle of incidence exceeds the critical angle, what phenomenon occurs?
-
A
Diffraction
-
B
Total internal reflection
-
C
Scattering
-
D
Dispersion
11
What is the name for the phenomenon where a sound wave bends around obstacles or spreads out after passing through an opening?
-
A
Interference
-
B
Refraction
-
C
Diffraction
-
D
Reflection
12
Which property of matter describes its resistance to a change in its state of motion?
-
A
Mass
-
B
Weight
-
C
Inertia
-
D
Momentum
13
What is the term for the transfer of heat through direct contact between particles?
-
A
Convection
-
B
Radiation
-
C
Conduction
-
D
Absorption
14
In the context of electrical resistance, what is the relationship described by Ohm's Law?
-
A
Resistance is directly proportional to voltage and inversely proportional to current.
-
B
Resistance is inversely proportional to voltage and directly proportional to current.
-
C
Voltage is directly proportional to current and resistance.
-
D
Current is directly proportional to voltage and inversely proportional to resistance.
15
Which type of mirror always forms a virtual, upright, and diminished image?
-
A
Concave mirror
-
B
Convex mirror
-
C
Plane mirror
-
D
Spherical mirror
16
What is the measure of the average kinetic energy of the particles within a substance?
-
A
Heat
-
B
Temperature
-
C
Thermal energy
-
D
Specific heat capacity
17
What is the fundamental unit of electric charge?
-
A
Ampere
-
B
Volt
-
C
Ohm
-
D
Coulomb
18
Which wave characteristic refers to the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position?
-
A
Wavelength
-
B
Frequency
-
C
Period
-
D
Amplitude
