Forces and Newton's first law

Forces and Newton's first law Quiz

Spec 8.1 · Edexcel A-Level 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 in a straight line at constant velocity. The resultant force on it is

    • A. in the direction of motion
    • B. zero
    • C. equal to its weight
    • D. proportional to its speed

  2. 2. Forces (4i−3j)(4\mathbf{i}-3\mathbf{j}) N, (−6i+j)(-6\mathbf{i}+\mathbf{j}) N and (pi+qj)(p\mathbf{i}+q\mathbf{j}) N keep a particle in equilibrium. Find pp and qq.

    • A. p=−2, q=−2p=-2,\ q=-2
    • B. p=10, q=−4p=10,\ q=-4
    • C. p=−10, q=4p=-10,\ q=4
    • D. p=2, q=2p=2,\ q=2

  3. 3. A person of weight 600600 N stands in a lift moving down at a constant speed of 22 m s−1^{-1}. The normal reaction from the floor is

    • A. 600600 N
    • B. 00 N
    • C. 12001200 N
    • D. 300300 N

  4. 4. A cyclist rides at constant speed along a horizontal road with a driving force of 150150 N. The total resistance is

    • A. less than 150150 N
    • B. zero
    • C. 150150 N
    • D. more than 150150 N

  5. 5. Two perpendicular forces, 33 N and 44 N, act on a particle. The magnitude of the resultant is

    • A. 77 N
    • B. 55 N
    • C. 11 N
    • D. 1212 N

Quiz