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Pushes and pulls

Physics • Forces & Interactions • Transitional Reasoning • 3 questions

Pushes and pulls Transitional Reasoning Download PDF

Physics · Forces & Newton's Laws · Physics · Forces & Interactions

3 Physics practice questions on Pushes and pulls. Questions that build towards applied reasoning.

Questions

  1. 1.

    A student stands in one spot and uses a long, rigid metal hook to move two identical boxes across a flat floor. To move Box 1 directly away from their body, the student places the flat tip of the tool against the box and drives it outward. To move Box 2 directly toward their body, the student catches the far edge with the hook and draws the tool inward. Which statement correctly identifies the type of contact force exerted on each box?

    • A) A push was exerted on Box 1 because the force was directed away from the student, and a pull was exerted on Box 2 because the force was directed toward the student.
    • B) A push was exerted on both boxes because a rigid metal tool can only deliver pushing contact forces.
    • C) A pull was exerted on Box 1 because the box moved forward, and a push was exerted on Box 2 because the hook pressed against the rear surface.
    • D) A pull was exerted on both boxes because the student remained stationary in one spot while operating the tool.
  2. 2.

    Two students, Maya and Liam, sit facing each other across a flat table with a stationary wooden block placed between them. They want to move the block along the tabletop directly toward Maya, and both students agree to exert a contact force on the block at the same time. Which combination of forces allows both students to work together to move the block toward Maya?

    • A) Maya exerts a pull, and Liam exerts a push.
    • B) Maya exerts a push, and Liam exerts a pull.
    • C) Maya exerts a push, and Liam exerts a push.
    • D) Maya exerts a pull, and Liam exerts a pull.
  3. 3.

    During a science investigation, a student observes a toy car rolling across a level floor directly away from where they are standing. The student wants to exert a force from their position using a string to slow the car down to a complete stop, and then cause it to travel back toward them along the same straight path. Which pair of forces must the student apply from their fixed position to achieve this result?

    • A) A push to stop the car, followed by a pull to bring it back
    • B) A push to stop the car, followed by a push to bring it back
    • C) A pull to stop the car, followed by a pull to bring it back
    • D) A pull to stop the car, followed by a push to bring it back