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Grade 12 Physics entrance exam, 2016 E.C. (2024), Tigray

Real questions from the Grade 12 university entrance exam in Physics, as students sat it in 2016 E.C. Every question comes with the correct answer and a worked explanation. This is the paper sat in Tigray in 2016 E.C. The year's other papers are listed further down.

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  • Natural science stream

    Who sits it

  • 2016 E.C. (2024), Tigray

    Exam year

  • 45 questions with answers

    In this set

Try questions from this paper

Answer each question yourself before opening the answer. The explanations point to the exact place in the textbook, so you know which page to reread when you miss one.

Question 1

In physics, dynamics is understood as a branch of mechanics which describes the motion of particles

  1. A.without considering the effects of forces.
  2. B.together with the effects of forces.
  3. C.on which only a constant resultant force is applied.
  4. D.on which no resultant force is applied.
Show the answer and explanation

Answer: B together with the effects of forces.

Why

Dynamics is the branch of mechanics that studies forces and their effects on the motion of bodies, whereas kinematics describes motion without considering its causes (forces).

Question 2

After doing a background research, a researcher formulates a hypothesis. If the researcher proceeds with his/her study following the scientific method, which one of the following is the correct ordering of the steps the researcher should follow?

  1. A.Design an experiment → Make predictions → Analyze the collected data → Draw conclusions
  2. B.Design an experiment → Analyze the collected data → Make predictions → Draw conclusions
  3. C.Analyze the collected data → Make predictions → Design an experiment → Draw conclusions
  4. D.Make predictions → Design an experiment → Analyze the collected data → Draw conclusions
Show the answer and explanation

Answer: D Make predictions → Design an experiment → Analyze the collected data → Draw conclusions

Why

Following the scientific method, after formulating a hypothesis, a researcher makes predictions, designs and conducts experiments to test those predictions, analyzes the collected data, and then draws conclusions.

Question 3

Among the following concepts of physics, which one of the following is commonly used in analyzing forces on the bridge, motion of airplane, motion of planets and magnetic fields?

  1. A.kinematics
  2. B.Vectors
  3. C.Thermodynamics
  4. D.Optics
Show the answer and explanation

Answer: B Vectors

Why

Vectors are essential mathematical tools used to analyze physical quantities that have both magnitude and direction, such as forces on a bridge, velocity/acceleration of an airplane, gravitational forces on planets, and magnetic fields.

Question 4

In a certain class student A measured the acceleration due to gravity, while student B measured electric current in a circuit. Each student did the measurement four times. Two readings of student A are below the accepted value, while the other two are above the accepted value. On the other hand, all the readings of student B are below the accepted value. Which one of the following is correct about the types of errors associated with the two experiments?

  1. A.Systematic error to experiment done by B
  2. B.Systematic error to experiment done by A
  3. C.Random error to experiment done by B
  4. D.Both systematic and random errors to experiments done by both A and B
Show the answer and explanation

Answer: A Systematic error to experiment done by B

Why

Systematic errors consistently skew measurements in one direction (such as all readings being below the accepted value, as in student B's experiment), whereas random errors cause readings to scatter both above and below the true value.

Question 5

The instantaneous acceleration of a particle is the

  1. A.change of position divided by the total time taken for the change to take place.
  2. B.rate change of velocity in a very short time interval that approaches zero.
  3. C.average velocity in a very short time interval that approaches zero.
  4. D.change of velocity divided by the total time taken for the change to take place.
Show the answer and explanation

Answer: B rate change of velocity in a very short time interval that approaches zero.

Why

Instantaneous acceleration is defined as the limit of the average acceleration as the time interval approaches zero, which represents the rate of change of velocity at a specific instant.

Question 6

Consider two objects A and B; object A undergoes a uniform circular motion while object B performs a non-uniform circular motion. Which one of the following is correct about the motions of the two objects?

  1. A.The velocities and accelerations of both objects are perpendicular to each other.
  2. B.the velocity of object A is constant whereas the velocity of object B is not.
  3. C.Both objects have constant accelerations.
  4. D.the speed of object A is constant whereas the speed of object B is not.
Show the answer and explanation

Answer: D the speed of object A is constant whereas the speed of object B is not.

Why

In uniform circular motion (object A), the speed remains constant while the direction of velocity changes. In non-uniform circular motion (object B), both the speed and direction of velocity change.

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The other Physics papers of 2016 E.C.

2016 E.C. (2024)2016 E.C. (2024), round 12016 E.C. model exam

Physics papers from other years

2018 E.C. (2026)2018 E.C. (2026), version 12018 E.C. (2026), version 22017 E.C. (2025)2017 E.C. (2025), version 12017 E.C. (2025), version 22015 E.C. (2023)2014 E.C. (2022)2013 E.C. (2021)2012 E.C. (2020)2011 E.C. (2019)2010 E.C. (2018)2009 E.C. (2017)2008 E.C. (2016)2007 E.C. (2015)2006 E.C. (2014)2005 E.C. (2013)

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Are these the real 2016 E.C. Physics entrance exam questions?

Yes. They come from the national university entrance exam in Physics that students sat in 2016 E.C. (2024). Our set holds 45 of its questions, each with its answer and an explanation that points back to the textbook.

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Can I download the Physics 2016 E.C. paper as a PDF?

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