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AP Intermediate 1st Year Units, Measurements and Motion in a Straight Line — practice questions

Explore 56 free Units, Measurements and Motion in a Straight Line questions in AP Intermediate 1st Year Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Units, Measurements and Motion in a Straight Line questions and exercises with answers

Showing questions 1–30 of 56.

As per your syllabus, an object's position is x = a + bt² with a = 8.5 m, b = 2.5 m/s². What is its velocity at t = 0 s?Read the answer and worked solution →As per your syllabus, what is the velocity at t = 2.0 s?Read the answer and worked solution →As per your syllabus, what is the AVERAGE velocity of the same object between t = 2.0 s and t = 4.0 s?Read the answer and worked solution →As per your syllabus, what is RECTILINEAR motion?Read the answer and worked solution →As per your syllabus, what is INSTANTANEOUS SPEED equal to (in MAGNITUDE) — at a given instant?Read the answer and worked solution →As per your syllabus, what is INSTANTANEOUS acceleration?Read the answer and worked solution →As per your syllabus, what is the SI UNIT of acceleration?Read the answer and worked solution →As per your syllabus, what is the shape of an x-t graph for motion with UNIFORM (constant) acceleration?Read the answer and worked solution →As per your syllabus, the FIRST kinematic equation for uniformly accelerated motion (relating final + initial velocity and time) is which?Read the answer and worked solution →As per your syllabus, the SECOND kinematic equation (relating displacement, initial velocity, time, and acceleration) is which?Read the answer and worked solution →As per your syllabus, the THIRD kinematic equation (relating final velocity, initial velocity, acceleration, and displacement — without time) is which?Read the answer and worked solution →As per your syllabus, doubling the INITIAL VELOCITY of a vehicle increases its stopping distance by what factor?Read the answer and worked solution →As per your syllabus, a ball thrown upward at 20 m/s from a height of 25 m (g=10 m/s², neglecting air resistance) takes how long to hit the ground?Read the answer and worked solution →As per your syllabus, if an object starts from rest (v₀ = 0) and moves with constant acceleration a, what is its displacement after time t?Read the answer and worked solution →As per your syllabus, an object starting from rest with acceleration 2 m/s² travels what distance in 10 s?Read the answer and worked solution →As per your syllabus, a car at 126 km/h (= 35 m/s) brakes to stop in 200 m. What is its retardation (assumed uniform)?Read the answer and worked solution →As per your syllabus, how long does the same car (initial 35 m/s, retardation 3.06 m/s²) take to stop?Read the answer and worked solution →As per your syllabus, in a kinematic problem, the THREE equations of motion are valid under what condition?Read the answer and worked solution →As per your syllabus, the magnitude of ACCELERATION DUE TO GRAVITY (g) near the Earth's surface is approximately what value?Read the answer and worked solution →As per your syllabus, if a ball is dropped from REST and falls for 1 s, how far has it fallen (taking g = 10 m/s²)?Read the answer and worked solution →As per your syllabus, if a ball is dropped from REST and falls for 2 s (g = 10 m/s²), what is its velocity at t = 2s?Read the answer and worked solution →As per your syllabus, if a ball is dropped from rest and falls for 2 s (g = 10 m/s²), how far has it fallen?Read the answer and worked solution →As per your syllabus, if the ruler dropped d = 21 cm before being caught, what is the reaction time (g = 9.8 m/s²)?Read the answer and worked solution →Speed or velocityRead the answer and worked solution →What does the graph doRead the answer and worked solution →What does the graph tell youRead the answer and worked solution →Type the motion termRead the answer and worked solution →Pop what acceleratesRead the answer and worked solution →One word is wrongRead the answer and worked solution →Order the Galileo argumentRead the answer and worked solution →

Worked practice questions

As per your syllabus, an object's position is x = a + bt² with a = 8.5 m, b = 2.5 m/s². What is its velocity at t = 0 s?

  1. 0 m/s
  2. 5.0 m/s
  3. 8.5 m/s
  4. 2.5 m/s
Show answer and solution

Correct answer: A. 0 m/s

As per your syllabus, v = dx/dt = 2bt. At t=0, v = 0. The other options use wrong substitutions.

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As per your syllabus, what is the velocity at t = 2.0 s?

  1. 5.0 m/s
  2. 20 m/s
  3. 2.5 m/s
  4. 10 m/s (= 2 × 2.5 × 2.0)
Show answer and solution

Correct answer: D. 10 m/s (= 2 × 2.5 × 2.0)

As per your syllabus, v = 2bt = 2 × 2.5 × 2 = 10 m/s.

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As per your syllabus, what is the AVERAGE velocity of the same object between t = 2.0 s and t = 4.0 s?

  1. 6 m/s
  2. 15 m/s (using Δx/Δt with x = a + bt²)
  3. 10 m/s
  4. 12 m/s
Show answer and solution

Correct answer: B. 15 m/s (using Δx/Δt with x = a + bt²)

As per your syllabus, avg vel = [x(4)−x(2)]/(4−2) = (16b−4b)/2 = 6b = 6 × 2.5 = 15 m/s.

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More Physics topics

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