# Physics Chapter Quiz Questions

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Questions: 15 | Attempts: 173  Settings  • 1.

### Who was the Clark University physicist responsible for "A Method of Reaching Extreme Altitudes"?

• A.

Enrico Fermi

• B.

Jules Verne

• C.

Robert Oppenheimer

• D.

Robert Goddard

D. Robert Goddard
Explanation
Robert Goddard was a Clark University physicist who was responsible for "A Method of Reaching Extreme Altitudes". He is known as the father of modern rocketry and made significant contributions to the development of rocket technology. In his publication, Goddard outlined the principles and methods for reaching extreme altitudes using rockets, laying the foundation for future space exploration. His work paved the way for advancements in rocketry and ultimately led to the development of the technology that allowed humans to reach space.

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• 2.

### What is the rate of descent of a falling object due to gravity?

• A.

3 Yards Per Second Every Second

• B.

10 Meters Per Second Every Second

• C.

9.8 Meters Per Second Every Second

• D.

1 Foot Per Second Every Second

C. 9.8 Meters Per Second Every Second
Explanation
The rate of descent of a falling object due to gravity is 9.8 meters per second every second. This is because gravity accelerates objects at a constant rate of 9.8 meters per second squared. This means that for every second an object falls, its speed increases by 9.8 meters per second.

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• 3.

### What does the "Uncertainty Principle" state about any particle?

• A.

Space Time Relationship Uncertain

• B.

Earth's Troposphere Is Uncertain

• C.

Position, Momentum Cannot Be Known

• D.

Unknown Beyond The Solar System

C. Position, Momentum Cannot Be Known
Explanation
The Uncertainty Principle states that it is impossible to simultaneously determine the exact position and momentum of a particle. This means that the more accurately we try to measure one of these properties, the less accurately we can know the other. Therefore, the position and momentum of a particle cannot be known with certainty.

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• 4.

### The earth rotates about its axis at what angle of tilt?

• A.

45 Degrees

• B.

9 Degrees

• C.

2.5 Degrees

• D.

23.5 Degrees

D. 23.5 Degrees
Explanation
The earth rotates about its axis at an angle of tilt of 23.5 degrees. This tilt is known as the axial tilt or obliquity of the Earth. It is the reason for the changing seasons on Earth as different parts receive varying amounts of sunlight throughout the year. The tilt also affects the length of daylight hours and the intensity of sunlight received at different latitudes.

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• 5.

### What is the anti-matter equivalent of an electron?

• A.

Positron

• B.

Antitron

• C.

Negatron

• D.

Microtron

A. Positron
Explanation
The anti-matter equivalent of an electron is called a positron. In particle physics, every particle has an anti-particle with the same mass but opposite charge. The positron has the same mass as an electron but has a positive charge instead of a negative charge. When an electron and a positron collide, they annihilate each other, releasing energy in the form of gamma rays. Positrons are commonly used in medical imaging techniques such as positron emission tomography (PET).

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• 6.

### Who oversaw Hitler's rocket program?

• A.

Rommel

• B.

Von Trapp

• C.

Oberst

• D.

Von Braun

D. Von Braun
Explanation
Von Braun is the correct answer because he was a German engineer and rocket scientist who played a key role in developing Germany's rocket technology during World War II. He was the chief architect of the V-2 rocket, which was used by Germany during the war. Von Braun later surrendered to the United States and became instrumental in the American space program, including the development of the Saturn V rocket that took astronauts to the moon.

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• 7.

### Who was known for his famous "oil-drop" experiments to determine the charge of the electron?

• A.

Ernst Rutherford

• B.

Max Plank

• C.

Robert Millikan

• D.

J.J. Thompson

C. Robert Millikan
Explanation
Robert Millikan is known for his famous "oil-drop" experiments to determine the charge of the electron. In these experiments, Millikan observed charged oil droplets in an electric field and measured their motion. By carefully controlling the electric field and measuring the forces acting on the droplets, he was able to calculate the charge of individual electrons. This groundbreaking work provided the first accurate measurement of the charge of the electron and contributed significantly to our understanding of atomic structure and electricity.

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• 8.

### What constant is equivalent to 96,485 coulombs per mole of electrons?

• A.

Volt

• B.

Curie

• C.

• D.

Becquerel

Explanation
A Faraday is a unit of electrical charge equal to 96,485 coulombs per mole of electrons. It is a constant used in electrochemistry to calculate the amount of charge transferred during a chemical reaction. The other options, Volt, Curie, and Becquerel, are not equivalent to 96,485 coulombs per mole of electrons and do not have a direct relationship to electrical charge.

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• 9.

### Who discovered that a moving magnet generates electric current known as electromagnetic induction?

• A.

J. J. Thompson

• B.

• C.

Alessandro Volta

• D.

Sir Humphrey Davy

Explanation
Michael Faraday is credited with discovering that a moving magnet can generate electric current, a phenomenon known as electromagnetic induction. Through his experiments, Faraday demonstrated that a changing magnetic field can induce an electric current in a nearby conductor. This discovery laid the foundation for the development of generators, transformers, and other important electrical devices. Faraday's work was groundbreaking in the field of electromagnetism and had a profound impact on the understanding and application of electricity.

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• 10.

### One kilogram is equal to how many pounds?

• A.

2

• B.

4.4

• C.

0.8

• D.

2.2

D. 2.2
Explanation
One kilogram is equal to 2.2 pounds. This is a commonly used conversion factor in the metric system. To convert kilograms to pounds, you multiply the number of kilograms by 2.2. Therefore, the correct answer is 2.2.

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• 11.

### What is the speed of sound called?

• A.

Speed Level 1

• B.

Mach 1

• C.

Sonic Minimum Speed

• D.

Mach 10

B. Mach 1
Explanation
Mach 1 is the correct answer because it is the speed of sound in dry air at sea level. The term "Mach" is used to describe the ratio of the speed of an object to the speed of sound in the medium through which it is traveling. Mach 1 indicates that the object is traveling at the speed of sound, which is approximately 343 meters per second or 1,125 feet per second.

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• 12.

### What famous scientist introduced the concept of "space-time"?

• A.

Alexander Graham Bell

• B.

Stephen Hawking

• C.

Thomas Edison

• D.

Albert Einstein

D. Albert Einstein
Explanation
Albert Einstein introduced the concept of "space-time". He revolutionized our understanding of the universe with his theory of general relativity, which proposed that space and time are not separate entities but are interconnected. According to Einstein, the fabric of space-time is curved by massive objects, such as planets or stars, creating what we perceive as gravity. This concept has had a profound impact on the field of physics and has been confirmed by numerous experiments and observations. Einstein's work laid the foundation for modern theories of cosmology and our understanding of the nature of the universe.

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• 13.

### If a jet cruises at 575 mph, how far will it go in 12 hours?

• A.

575 Miles

• B.

6900 Miles

• C.

82800 Miles

• D.

7000 Miles

B. 6900 Miles
Explanation
If a jet cruises at a speed of 575 mph, it means that it travels 575 miles in one hour. Therefore, in 12 hours, the jet will travel 575 miles/hour * 12 hours = 6900 miles.

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• 14.

### The physicist Marie Curie was awarded the Nobel Prize in which year?

• A.

1903

• B.

1979

• C.

1814

• D.

1972

A. 1903
Explanation
Marie Curie was awarded the Nobel Prize in 1903 for her groundbreaking research on radioactivity. She shared the prize with her husband Pierre Curie and Antoine Henri Becquerel. This recognition was a result of their discovery of new elements, such as polonium and radium, and their significant contributions to the field of physics. Marie Curie became the first woman to receive a Nobel Prize and went on to win a second Nobel Prize in 1911, making her the only person to have received Nobel Prizes in two different scientific fields.

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• 15.

### Which of the following terms is not related to thermodynamics?

• A.

Empathy

• B.

Energy

• C.

Enthalpy

• D.

Entropy Back to top