Questions & Answers
Browse all 20 questions from the
Physics of the Human Body study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which organ acts as a pump to create pressure for blood circulation in the human body?
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A
Lungs
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B
Heart
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C
Liver
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D
Kidney
2
What type of energy does the human body use to move muscles?
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A
Chemical energy
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B
Nuclear energy
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C
Magnetic energy
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D
Static energy
3
Which part of the eye acts like a lens to focus light onto the retina?
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A
Iris
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B
Pupil
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C
Cornea
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D
Eyelid
4
What unit is commonly used to measure the energy content in food?
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A
Newtons
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B
Calories
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C
Amps
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D
Watts
5
Which sound frequency range can the average healthy human ear detect?
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A
0-10 Hz
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B
20-20,000 Hz
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C
50,000-100,000 Hz
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D
Above 200,000 Hz
6
What is the primary function of the bones in the human body regarding physics?
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A
Electrical storage
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B
Structural support
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C
Thermal insulation
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D
Sound amplification
7
Which physical process allows oxygen to move from the lungs into the blood?
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A
Diffusion
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B
Condensation
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C
Evaporation
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D
Solidification
8
What determines the pitch of the human voice?
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A
The weight of the brain
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B
The vibration frequency of vocal cords
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C
The color of the skin
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D
The size of the feet
9
Which body system uses electrical signals to send information?
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A
Digestive system
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B
Nervous system
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C
Skeletal system
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D
Muscular system
10
What helps the body maintain a stable internal temperature?
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A
Homeostasis
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B
Gravity
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C
Electromagnetism
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D
Friction
11
Which force keeps our feet on the ground while we walk?
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A
Magnetism
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B
Gravity
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C
Static electricity
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D
Buoyancy
12
What is the name for the amount of matter in the human body?
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A
Volume
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B
Mass
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C
Pressure
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D
Velocity
13
Which state of matter makes up the largest percentage of the human body?
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A
Solid
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B
Liquid
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C
Gas
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D
Plasma
14
What type of waves are used in medical ultrasound imaging?
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A
Light waves
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B
Radio waves
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C
Sound waves
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D
Microwaves
15
Which part of the body acts as a lever system when we lift an object?
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A
Skin
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B
Musculoskeletal system
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C
Stomach
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D
Lungs
16
What is the primary purpose of sweating in terms of heat transfer?
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A
To increase friction
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B
To cool the body through evaporation
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C
To store electrical charge
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D
To build muscle density
17
How is the pressure of blood usually measured in a clinical setting?
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A
Kilograms
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B
Millimeters of mercury (mmHg)
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C
Centimeters
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D
Joules
18
Which organ uses a lens to refract light for vision?
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A
Ear
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B
Skin
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C
Eye
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D
Tongue
19
What is the main physical property of bones that prevents them from breaking easily?
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A
Transparency
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B
Conductivity
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C
Tensile strength
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D
Volatility
20
Which process involves the conversion of glucose into energy for human cells?
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A
Cellular respiration
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B
Photosynthesis
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C
Combustion
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D
Distillation
