Biophysics I - BSG 1108 Quiz

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Questions and Answers

What is the primary focus of the first week of the course?

Therapeutic Heat and Cold in medicine

Charge and electrostatic forces

Bioelectricity and nerve impulse

Statics, Force, Torque, and equilibrium (correct)

Which concept relates to the mechanical advantages provided by levers in the body?

Calibration of a thermocouple

Specific heat

Torque (correct)

Ohm’s law

In which week is the midterm exam scheduled?

Week 5

Week 8 (correct)

Week 6

Week 10

Which measurement technique is introduced in the fifth week of the course?

Calibration of a thermocouple Signup and view all the answers

What physical phenomenon is explored in relation to temperature's effect in week 11?

Effect on the cell membrane Signup and view all the answers

What application is discussed in relation to electric fields during the course?

Mapping of electric fields Signup and view all the answers

Which law relates to the relationship between voltage, current, and resistance?

Ohm’s Law Signup and view all the answers

What is the focus of the topic on capacitors in week 10?

RC circuit applications Signup and view all the answers

What is a moment of a force defined as?

The measure of the turning effect of a force about a point. Signup and view all the answers

What condition must be satisfied for static equilibrium of a rigid body?

The net force on the rigid body must be zero. Signup and view all the answers

Which of the following factors does NOT influence torque?

Weight of the object being rotated Signup and view all the answers

If a force of 300 N is acting at an angle of 32 degrees to the ground, which of the following represents the horizontal component of the force?

$300 imes ext{cos}(32^{ ext{o}})$ Signup and view all the answers

What is the relationship between torque and force?

Torque is a force that causes rotation about a pivot. Signup and view all the answers

Which expression best describes the calculation of a torque?

$ au = F imes d imes ext{sin}( heta)$ Signup and view all the answers

In the context of biophysics, how can forces be perceived in the body?

Forces can be felt through their effects in the body. Signup and view all the answers

Which of the following best describes vectors in the context of forces?

Arrows that indicate both magnitude and direction. Signup and view all the answers

Study Notes

Biophysics I - BSG 1108

Course instructor: Dr. Anas Agamia
Staff assistance: Saeed Ali, Aml alsoudi, Esraa Draz
Course includes lectures and practical sessions
Topics covered include statics, force, torque, equilibrium, measurement of short length using calipers, center of mass, stability, simple pendulum, levers, temperature, heat, metabolic rate, therapeutic heat and cold, temperature measurements, electrostatic forces, Ohm's law, electric fields, capacitors, dielectrics, RC circuits, bioelectricity, time constant of RC circuit, measurements of length of a molecule , effect of temperature on cell membranes, electrical signals (EMG, ECG, EEG, ERG, EOG).
Topics also include resolving forces, torque, reaction forces, torque and reaction forces in different situations (arm curl, lifting a box, standing on toes), moments of forces, magnitude and distance to pivot point, angle, moment of a force=Fd sinθ, moment arm, torque is related to rotational motion not force, torque created when line of action of force does not pass through center of rotation.
Equilibrium includes static and dynamic equilibrium, conditions for rigid body in static equilibrium (net force = zero, net torque = zero), examples of equilibrium types (stable, unstable, neutral equilibrium).

Biophysics Definition

Biophysics is a branch of science concerned with the application of physical methods and principles to biological problems.
It links physics and biology.

Force Definition

Force is a physical quantity that tends to accelerate or decelerate an object, or change its shape.
Force is a push or a pull.
A single force can be resolved into horizontal and vertical components.

Vectors

Vectors are represented with arrows
Magnitude of force is equal to the length of the arrow
Direction of force is the head of the arrow.

Torque (Moment of force)

Torque is a moment of force which is a rotational force.
It is a measure of the turning effect of a force about a point.
Torque = Force x perpendicular distance from the axis of rotation.
Torque is determined by the magnitude of applied force, distance from the pivot point, and the angle (direction) of the applied force.
Positive torque is counter-clockwise, negative torque is clockwise.

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Description

Test your knowledge on the fundamental concepts of Biophysics covered in BSG 1108. This quiz focuses on topics such as forces, equilibrium, bioelectricity, and thermal effects in biological systems. Whether you're reviewing for a class or just want to challenge yourself, this quiz will cover essential principles and measurements in biophysics.