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NCEA Level 1 Physics — practice by topic

Browse 41 questions across 2 Physics topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Physics topics

Motion in One Dimension (21)Acceleration (20)

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Kinematics is the branch of physics that studies motion in what way?Read the answer and worked solution →What is a reference frame, as used to describe motion?Read the answer and worked solution →A cyclist rides 3 km west and then turns around and rides 2 km east. Taking west as the positive direction, what is her displacement?Read the answer and worked solution →A cyclist rides 3 km west and then turns around and rides 2 km east. What total distance does she ride?Read the answer and worked solution →

Worked practice questions

Kinematics is the branch of physics that studies motion in what way?

  1. By tracking the mass of the moving object
  2. By measuring only the forces that produce it
  3. By comparing the energy before and after it
  4. Without considering the causes of the motion
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Correct answer: D. Without considering the causes of the motion

1. Physics opens its study of motion with kinematics, named before any talk of forces. 2. Kinematics describes how an object moves: its position, distance, speed, and direction. 3. It does not ask what pushed or pulled the object to make it move that way. _Source: OpenStax Physics (CC BY 4.0), Ch 2 "Motion in One Dimension", section 2.1 Relative Motion, Distance, and Displacement_

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What is a reference frame, as used to describe motion?

  1. An object's position measured against a coordinate system
  2. The total distance an object covers along its path
  3. The instrument used to measure an object's speed
  4. The force that keeps an object moving in a straight line
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Correct answer: A. An object's position measured against a coordinate system

1. A description of motion always needs a background to measure against. 2. That background, a coordinate system for locating objects, is the reference frame. 3. Distance and speed are separate quantities computed once a reference frame is chosen, not the frame itself. _Source: OpenStax Physics (CC BY 4.0), Ch 2 "Motion in One Dimension", section 2.1 Relative Motion, Distance, and Displacement_

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A cyclist rides 3 km west and then turns around and rides 2 km east. Taking west as the positive direction, what is her displacement?

  1. 1 km east
  2. 1 km west
  3. 5 km west
  4. 5 km east
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Correct answer: B. 1 km west

1. Take west as positive, so the first leg is +3 km and the second leg is -2 km. 2. Displacement is final position minus initial position: (+3 km) + (-2 km) = +1 km. 3. A result of +1 km in a west-positive axis means 1 km west of the start. 4. This is smaller than the 5 km she actually rode, because displacement ignores the doubling back. _Source: OpenStax Physics (CC BY 4.0), Ch 2 "Motion in One Dimension", section 2.1 Relative Motion, Distance, and Displacement_

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