Take The Ultimate Physics IQ Test Questions! Quiz
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Questions and Answers
- 1.
Which aeronautical term is from a French word meaning "steerable"?
- A.
Rudder
- B.
Stall
- C.
Pitch
- D.
Dirigible
Correct Answer
D. DirigibleExplanation
The correct answer is Dirigible. A dirigible is a type of airship that is steerable, derived from the French word "diriger" meaning "to steer." This term is used to describe a lighter-than-air aircraft that can be controlled and maneuvered in the air. The other options, such as rudder, stall, and pitch, do not directly relate to the French word for "steerable."Rate this question:
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- 2.
What is used to control pitch on a plane?
- A.
Elevators
- B.
Chord
- C.
Wings
- D.
Rudder
Correct Answer
A. ElevatorsExplanation
Elevators are used to control the pitch on a plane. Pitch refers to the up and down movement of the aircraft's nose. Elevators are control surfaces located on the tail of the plane that can be moved up or down. When the pilot moves the elevators up, the nose of the plane moves up, and when the elevators are moved down, the nose of the plane moves down. By adjusting the position of the elevators, the pilot can control the pitch of the plane and maintain the desired altitude and angle of attack.Rate this question:
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- 3.
What is a maneuver creating drag and causing the airplane to lose altitude rapidly in a controlled manner?
- A.
Track
- B.
Crab
- C.
Slip
- D.
Yaw
Correct Answer
C. SlipExplanation
A slip is a maneuver where the pilot intentionally causes the airplane to lose altitude rapidly in a controlled manner by creating drag. During a slip, the pilot intentionally banks the airplane in the opposite direction of the wind, causing the airplane to slide sideways through the air. This increases the drag on the airplane, resulting in a rapid descent. Slips are commonly used during approaches and landings to lose altitude quickly while maintaining control of the aircraft.Rate this question:
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- 4.
Which aeronautical term is the dimension of a wing parallel to the direction of motion?
- A.
Crab
- B.
Span
- C.
Control Surface
- D.
Rudder
Correct Answer
B. SpanExplanation
Span is the correct answer because it refers to the dimension of a wing that runs parallel to the direction of motion. It is the distance between the wingtips and plays a crucial role in determining the lift and stability of an aircraft. The longer the span, the greater the lift generated, allowing the aircraft to stay airborne more efficiently. Therefore, span is an important aeronautical term related to the dimensions and performance of wings.Rate this question:
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- 5.
Instantaneous variations in the rotational speed of the turntable platter is called what?
- A.
Scratching
- B.
Wow And Flutter
- C.
Dynamic Range
- D.
Comb Filter
Correct Answer
B. Wow And FlutterExplanation
Wow and flutter refers to the instantaneous variations in the rotational speed of a turntable platter. This phenomenon can cause pitch variations and distortions in the playback of audio recordings. It is commonly associated with analog vinyl records and can be caused by various factors such as motor instability or imperfections in the turntable mechanism. Scratching, dynamic range, and comb filter are unrelated terms and do not describe this specific phenomenon.Rate this question:
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- 6.
What is the moving portion of a magnetic circuit?
- A.
Tone Arm
- B.
Core
- C.
Armature
- D.
Coil
Correct Answer
C. ArmatureExplanation
The moving portion of a magnetic circuit is called the armature. In electrical machines like generators and motors, the armature is the part that rotates or moves in response to the magnetic field. It is typically made of a conductor and carries the current, generating a magnetic field or producing mechanical motion. The armature is an essential component in converting electrical energy to mechanical energy or vice versa.Rate this question:
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- 7.
What's the term used to indicate the speed of a lens?
- A.
F-Stop
- B.
Timebase Corrector
- C.
Comb Filter
- D.
Shutter Speed
Correct Answer
A. F-StopExplanation
The term used to indicate the speed of a lens is F-Stop. F-Stop refers to the aperture setting of a lens, which determines the amount of light that enters the camera. A lower F-Stop value indicates a larger lens opening and a faster lens, allowing more light to reach the camera sensor. This is important for controlling the exposure and depth of field in photography.Rate this question:
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- 8.
How many vibrations per second is need to produce a standard musical A?
- A.
4 Vibrations Per Second
- B.
440 Vibrations Per Second
- C.
1 Vibration Per Second
- D.
44 Vibrations Per Second
Correct Answer
B. 440 Vibrations Per SecondExplanation
The standard musical A is produced by 440 vibrations per second. This is known as the frequency of the sound wave, and it determines the pitch of the note. In music, the pitch of A is standardized to 440 Hz, meaning that the sound wave repeats itself 440 times in one second. This frequency is widely accepted and used as a reference for tuning musical instruments.Rate this question:
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- 9.
Stephen Hawking suffers from which disease?
- A.
Alzheimers
- B.
Lou Gehrig's Disease
- C.
Parkinsons
- D.
Multiple Sclerosis
Correct Answer
B. Lou Gehrig's DiseaseExplanation
Stephen Hawking suffered from Lou Gehrig's Disease, also known as Amyotrophic Lateral Sclerosis (ALS). This neurodegenerative disease affects the nerve cells in the brain and spinal cord, leading to the loss of muscle control and eventually paralysis. Hawking was diagnosed with ALS at the age of 21 and lived with the disease for over five decades. Despite his physical limitations, he made significant contributions to the field of theoretical physics and became one of the most renowned scientists of his time.Rate this question:
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- 10.
How many sides do all snow crystals have?
- A.
8
- B.
6
- C.
4
- D.
32
Correct Answer
B. 6Explanation
Snow crystals have six sides because they are formed through the process of crystallization, which occurs when water molecules freeze and arrange themselves in a hexagonal lattice structure. This hexagonal structure results in snowflakes having six sides or branches. Each branch of a snowflake is symmetrical and unique, creating the intricate and delicate patterns that we associate with snow crystals.Rate this question:
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- 11.
When glass breaks, how fast can the cracks travel?
- A.
3,000 Mph
- B.
60 Mph
- C.
500 Mph
- D.
12,000 Mph
Correct Answer
A. 3,000 MphExplanation
Glass cracks can travel at speeds of up to 3,000 mph. When glass breaks, the cracks propagate rapidly due to the release of stored energy in the glass. This energy release causes the cracks to spread at high velocities, resulting in the characteristic shattering of glass. The speed at which the cracks travel is influenced by various factors such as the type and thickness of the glass, as well as the force applied to it.Rate this question:
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- 12.
Which of these ingredients, added to water, will cause an egg to float best?
- A.
Salt
- B.
Oil
- C.
Sugar
- D.
Vinegar
Correct Answer
A. SaltExplanation
Salt, when added to water, increases its density. This increased density makes the water more buoyant, allowing the egg to float better. Oil, sugar, and vinegar do not have the same effect on water density as salt does, so they would not cause the egg to float as effectively.Rate this question:
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- 13.
Which is an early version of string theory?
- A.
Kaluza-Klein Theory
- B.
S-Theory
- C.
PVM Theory
- D.
Knot Theory
Correct Answer
A. Kaluza-Klein TheoryExplanation
Kaluza-Klein Theory is an early version of string theory that was proposed by Theodor Kaluza and Oskar Klein in the 1920s. This theory attempts to unify gravity and electromagnetism by introducing an extra dimension of space. It suggests that the universe contains more than the four dimensions we are familiar with, and that these extra dimensions are curled up and hidden at extremely small scales. While Kaluza-Klein Theory predates the development of string theory, it laid the groundwork for the idea of extra dimensions, which is a key component of string theory.Rate this question:
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- 14.
What type of simple machine is a water well and bucket?
- A.
Complex
- B.
Wheel And Bucket
- C.
Wheel And Axle
- D.
Pulley
Correct Answer
C. Wheel And AxleExplanation
A water well and bucket can be classified as a wheel and axle simple machine. In this case, the wheel refers to the pulley system used to lower and raise the bucket into the well, while the axle is the central shaft on which the wheel rotates. This arrangement allows for the efficient transfer of force, making it easier to lift the bucket and retrieve water from the well.Rate this question:
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- 15.
Which of the following is an example of a compound machine?
- A.
Ramp
- B.
Flag Pole
- C.
Water Well
- D.
A Pair Of Scissors
Correct Answer
D. A Pair Of ScissorsExplanation
A pair of scissors is an example of a compound machine because it is made up of multiple simple machines working together. The blades of the scissors act as wedges, the handles act as levers, and the pivot point acts as a fulcrum. When the handles are squeezed together, the wedges force the blades to cut through material. Therefore, a pair of scissors meets the criteria of being a compound machine as it combines different simple machines to perform a specific task.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
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May 18, 2015Quiz Created by
DanielCarig
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