Start learning →

JEE Main Unit 1A: Kinematics: 1D Motion, Position & Velocity — practice questions

Explore 32 free Unit 1A: Kinematics: 1D Motion, Position & Velocity questions in JEE Main Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Unit 1A: Kinematics: 1D Motion, Position & Velocity with Quill →

Unit 1A: Kinematics: 1D Motion, Position & Velocity questions and exercises with answers

Showing questions 1–30 of 32.

Kirchhoff's Voltage Law is based on conservation ofRead the answer and worked solution →According to Kirchhoff's Voltage Law, the algebraic sum of all potential differences around a closed loop isRead the answer and worked solution →Kirchhoff's Current Law is a direct consequence of conservation ofRead the answer and worked solution →If $S=f(t)$ is the displacement of a particle moving in a straight line, then acceleration isRead the answer and worked solution →Which of the following is a scalar quantity according to the notes?Read the answer and worked solution →In uniform circular motion of radius $r$ and speed $v$, the angular speed $\omega$ isRead the answer and worked solution →A projectile is launched with initial speed $v_0$ at angle $\theta$. Its maximum height is given byRead the answer and worked solution →For a projectile launched with speed $v_0$ at angle $\theta$, the horizontal range isRead the answer and worked solution →Instantaneous velocity $v(t)$ is given mathematically byRead the answer and worked solution →What is the SI unit and nature of velocity according to the summary table?Read the answer and worked solution →For a displacement-time graph, the slope representsRead the answer and worked solution →A body moves 30 m east in 5 s and then 10 m west in 5 s. What is its average velocity over the entire 10 s interval?Read the answer and worked solution →Which statement best describes kinematics?Read the answer and worked solution →A particle of mass $m$ has momentum $p$. Its kinetic energy is given by:Read the answer and worked solution →The SI units of work, energy, and power are respectively:Read the answer and worked solution →Two point charges exert a force $F$ on each other. If each charge is halved and the distance is also halved, the new force isRead the answer and worked solution →If both charges are doubled and the separation between them is kept unchanged, the electrostatic force becomesRead the answer and worked solution →Two charges are moved so that the distance between them becomes three times the original value. The new electrostatic force isRead the answer and worked solution →If $q_1 = q_2 = 1\,\text{C}$ and $r = 1\,\text{m}$ in the relation $F = k\dfrac{q_1 q_2}{r^2}$, then the magnitude of the force isRead the answer and worked solution →In the given expression $F = k\dfrac{q_1 q_2}{r^2}$, what does the constant $k$ represent in this content?Read the answer and worked solution →If the distance between two point charges is doubled while the charges remain unchanged, the electrostatic force becomesRead the answer and worked solution →According to Coulomb's law, the electrostatic force between two point charges is directly proportional toRead the answer and worked solution →A rope pulls a block to which it is tied. The force exerted by the rope on the block is best described asRead the answer and worked solution →The condition for translational equilibrium of a body isRead the answer and worked solution →Spring force belongs to the category of attachment to another body. Its magnitude is represented by which expression in this content?Read the answer and worked solution →Which pair consists entirely of contact forces?Read the answer and worked solution →A force is classified as a contact force when itRead the answer and worked solution →Which of the following is a field force rather than a contact force?Read the answer and worked solution →Work done by a constant force $\vec{F}$ when the body moves through displacement $\vec{s}$ is:Read the answer and worked solution →The kinetic energy of a body of mass $m$ moving with speed $v$ is:Read the answer and worked solution →

Worked practice questions

Kirchhoff's Voltage Law is based on conservation of

  1. charge
  2. energy
  3. mass
  4. electric field only at nodes
Show answer and solution

Correct answer: B. energy

KVL is based on conservation of energy. As a test charge goes around a closed loop, the net change in electric potential energy must be zero.

Open this question →

According to Kirchhoff's Voltage Law, the algebraic sum of all potential differences around a closed loop is

  1. equal to the total current in the loop
  2. always positive
  3. zero
  4. equal to the resistance of the loop
Show answer and solution

Correct answer: C. zero

Kirchhoff's Voltage Law states that the algebraic sum of all emfs and voltage drops around any closed loop is zero. This expresses conservation of energy in circuits.

Open this question →

Kirchhoff's Current Law is a direct consequence of conservation of

  1. energy
  2. charge
  3. momentum
  4. resistance
Show answer and solution

Correct answer: B. charge

KCL follows from conservation of charge. Since charge cannot accumulate indefinitely at an ideal junction, the total current entering must equal the total current leaving.

Open this question →

How to practise

  1. Choose a Unit 1A: Kinematics: 1D Motion, Position & Velocity question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Unit 1A: Kinematics: 1D Motion, Position & Velocity practice for JEE Main. Read explanations as you go. No signup form needed to start.

Practise Unit 1A: Kinematics: 1D Motion, Position & Velocity →

More Physics topics

Electric Charges and FieldsMechanical Properties of Solids and FluidsSemiconductor ElectronicsWave OpticsCurrent ElectricityUnit 2A: Newton's Laws and Translational EquilibriumMoving Charges and MagnetismAtoms and Nuclei