Download App

Rest and Motion: Kinematics — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsRest and Motion: Kinematics1 Mark
Question
An object may have:
  1. Varying speed without having varying velocity.
  2. Varying velocity without having varying speed.
  3. Nonzero acceleration without having varying velocity.
  4. Nonzero acceleration without having varying speed.
✓

Answer

  1. Varying velocity without having varying speed.
  1. Nonzero acceleration without having varying speed.

Explanation:

Velocity and acceleration are vector quantities that can be changed by changing direction only (keeping magnitude constant).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Rest and Motion: Kinematics→Rest and Motion: Kinematics — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Water flows through a frictionless duct with a cross-section varying as shown in fig. Pressure $p$  at points along the axis is represented by
→
An engine moving away from a vertical cliff blows a horn at a frequency $f$. Its speed is $0.5 \%$ of the speed of sound in air. The frequency of the reflected sound received at the engine is ............ $f$
→
$1\,\, kg$ of ice at $-10^o C$ is mixed with $4.4\,\, kg$ of water at $30^o C$. The final temperature of mixture is ........$^oC$ (specific heat of ice is $2100\,\,J/kg/k$)
→
A wire of length $L$ and radius $r$ is clamped at one end. If its other end is pulled by a force $F$, its length increases by $l$. If the radius of the wire and the applied force both are reduced to half of their original values keeping original length constant, the increase in length will become.
→
If 3 forces F1, F2 and F3 act on a particle, then in equilibrium ______.
→
A source of sound of frequency $256 Hz$ is moving rapidly towards a wall with a velocity of $5m/s$. The speed of sound is $330 m/s.$ If the observer is between the wall and the source, then beats per second heard will be .... $Hz$
→
Two trains travelling on the same track are approaching each other with equal speeds of $40\, m/s$. The drivers of the trains begin to decelerate simultaneously when they are just $2.0\, km$ apart. Assuming the decelerations to be uniform and equal, the value of the deceleration to barely avoid collision should be.........$m/{s^2}$
→
A ball $P$  collides with another identical ball  $Q$  at rest. For what value of coefficient of restitution $e$ , the  velocity of ball  $Q$  become two times that of ball  $P$  after collision
→
A particle is executing $SHM$ along a straight line. Its velocities at distance $x_1$ and $x_2$ from the mean position are $V_1$ and $V_2$ respectively. Its time period is
→
In a vernier callipers, $(N+1)$ divisions of vernier scale coincide with $N$ divisions of main scale. If $1 \mathrm{MSD}$ represents $0.1 \mathrm{~mm}$, the vernier constant (in $\mathrm{cm}$ ) is:
→