Work done and energy

Work done and energy Quiz

Spec MC1–MC3 · AQA A-Level Further Maths: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

  1. 1. A particle moves 5 m under a 10 N force acting in the direction of motion against a 4 N resistance. What is the net work done?

    • A. 2020 J
    • B. 3030 J
    • C. 5050 J
    • D. 7070 J

  2. 2. A 3 kg particle falls from rest through 5 m under gravity alone. Find its speed on reaching the ground (g=9.8g=9.8).

    • A. 9.9 m s−19.9\text{ m s}^{-1}
    • B. 7.0 m s−17.0\text{ m s}^{-1}
    • C. 98 m s−198\text{ m s}^{-1}
    • D. 4.9 m s−14.9\text{ m s}^{-1}

  3. 3. A particle of mass 4 kg is accelerated from 3 m s−13\text{ m s}^{-1} to 5 m s−15\text{ m s}^{-1}. What is the work done?

    • A. 1616 J
    • B. 88 J
    • C. 3232 J
    • D. 44 J

  4. 4. A 2 kg block slides 6 m down a smooth slope inclined at 30∘30^\circ, starting from rest (g=9.8g=9.8). Find its speed at the bottom.

    • A. 5.9 m s−15.9\text{ m s}^{-1}
    • B. 8.4 m s−18.4\text{ m s}^{-1}
    • C. 7.7 m s−17.7\text{ m s}^{-1}
    • D. 10.9 m s−110.9\text{ m s}^{-1}

  5. 5. A particle on a rough horizontal surface slides to rest in 8 m against a constant friction force of 3 N. What was its initial kinetic energy?

    • A. 1111 J
    • B. 2.72.7 J
    • C. 4848 J
    • D. 2424 J

Quiz