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Physics Lecture 1 2027 Update With Complete Solutions

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PHYSICS LECTURE 1 2027 UPDATE WITH COMPLETE SOLUTIONS

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PHYSICS LECTURE 1 2027 UPDATE WITH COMPLETE SOLUTIONS

Question 1.
mechanics are

Correct Answer: segment of physics that deals with motion


Question 2.
diagnostic ultrasound uses high frequency--- waves

Correct Answer: mechanical


Question 3.
doppler ultrasound uses the

Correct Answer: motion of blood in the heart or vessels to create multicolor
images of flow


Question 4.
Energy

Correct Answer: capability/ability to do work


Question 5.
symbol for energy

Correct Answer: E


Question 6.
unit for energy

Correct Answer: joules (J)


Question 7.
law of conservation of energy

Correct Answer: Energy cannot be created or destroyed, only changed


Question 8.
total energy remains

Correct Answer: constant

,Question 9.
forms of energy

Correct Answer: mechanical, chemical, thermal, nuclear and electrical


Question 10.
forms of mechanical energy

Correct Answer: kinetic and potential


Question 11.
kinetic energy

Correct Answer: energy of motion of an object


Question 12.
potential energy

Correct Answer: stored energy from position


Question 13.
force can change

Correct Answer: the state of rest or motion of matter


Question 14.
force

Correct Answer: A push or pull exerted on an object


Question 15.
symbol for force

Correct Answer: F


Question 16.
unit of force

Correct Answer: Newton (N)


Question 17.
pressure

Correct Answer: force applied over an area

, Question 18.
what kind of variable is pressure

Correct Answer: acoustic


Question 19.
formula for pressure

Correct Answer: pressure = force/area


Question 20.
displacement

Correct Answer: distance a body has moved


Question 21.
speed

Correct Answer: how fast something an object moved and how long it took


Question 22.
formula for speed

Correct Answer: speed = distance/time


Question 23.
unit for speed

Correct Answer: meters per second (m/s)


Question 24.
velocity

Correct Answer: Speed in a given direction


Question 25.
symbol for velocity

Correct Answer: V


Question 26.
unit for velocity

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