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Physics Lecture 1: Scalars and Vectors

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Questions and Answers

What is the main use of scalar quantities in medical technology?

Determining the velocity of blood flow
Measuring the force exerted by muscles
Calculating drug dosages and body mass index (correct)
Measuring the direction of electrical signals

What is the use of force as a vector quantity in medical technology?

Measuring the force exerted by muscles (correct)
Calculating energy expenditure
Determining the direction of blood flow
Measuring heart rate

What is the purpose of measuring time in medical technology?

Measuring the duration of medical procedures (correct)
Determining the velocity of muscle contractions
Calculating drug dosages
Monitoring heart rate

What is the use of velocity and acceleration as vector quantities in medical technology?

Measuring the speed and direction of blood flow (D) Signup and view all the answers

What is the purpose of measuring energy and power as scalar quantities in medical technology?

Measuring the energy absorbed by the body (A) Signup and view all the answers

What is the use of magnetic fields as vector quantities in medical technology?

Creating images of the body's internal structures (A) Signup and view all the answers

What is the use of vector quantities in medical technology?

Measuring the direction and magnitude of electrical signals (B) Signup and view all the answers

What is the main difference between scalar and vector quantities?

Scalar quantities have magnitude only, while vector quantities have both magnitude and direction (B) Signup and view all the answers

What is the use of transcranial magnetic stimulation (TMS) in medical technology?

Stimulating nerves and muscles (D) Signup and view all the answers

What is the use of magnetic navigation in medical technology?

Guiding medical devices (A) Signup and view all the answers

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