Newton's second law, weight and gravity

Newton's second law, weight and gravity Quiz

Spec R2–R3 · AQA A-Level Maths: Quiz

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  1. 1. A resultant force of 3030 N acts on a 66 kg mass. Find the acceleration.

    • A. 55 m s⁻²
    • B. 180180 m s⁻²
    • C. 0.20.2 m s⁻²
    • D. 2424 m s⁻²

  2. 2. What is the weight of a 55 kg mass on Earth (g=9.8g=9.8 m s⁻²)?

    • A. 55 N
    • B. 0.510.51 N
    • C. 14.814.8 N
    • D. 4949 N

  3. 3. A 22 kg particle has forces (3i+4j)(3\mathbf{i}+4\mathbf{j}) N and (1i−2j)(1\mathbf{i}-2\mathbf{j}) N acting. Find its acceleration.

    • A. (2i+1j)(2\mathbf{i}+1\mathbf{j}) m s⁻²
    • B. (4i+2j)(4\mathbf{i}+2\mathbf{j}) m s⁻²
    • C. (8i+4j)(8\mathbf{i}+4\mathbf{j}) m s⁻²
    • D. (1i+3j)(1\mathbf{i}+3\mathbf{j}) m s⁻²

  4. 4. A 300300 kg lift accelerates upwards at 22 m s⁻². Find the tension (g=9.8g=9.8).

    • A. 29402940 N
    • B. 600600 N
    • C. 35403540 N
    • D. 23402340 N

  5. 5. Which statement is correct about a 1010 kg object moved from Earth to the Moon?

    • A. Its mass decreases
    • B. Its weight stays the same
    • C. Both mass and weight increase
    • D. Its mass stays the same and its weight decreases

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