Download App

Rest and Motion: Kinematics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsRest and Motion: Kinematics2 Marks
Question
If a particle is accelerating, it is either speeding up or speeding down. Do you agree with this statement?
✓

Answer

Acceleration doesn’t mean speeding up or down. It means change of velocity either change in magnitude or direction.

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 "2 Marks Questions" from Rest and Motion: Kinematics→Rest and Motion: Kinematics — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The pressure of the gas in a constant volume gas thermometer is 70kPa at the ice point. Find the pressure at the steam point.
→
The distance of the field point, on the equatorial plane of a small electric dipole is halved. By what factor does the electric field due to the dipole change?
→
  1. Why are infra-red waves often called heat waves? Explain.
  2. What do you understand by the statement, ‘‘Electromagnetic waves transport momentum’’?
→
If the resultant torque of all the forces acting on a body is zero about a point, is it necessary that it will be zero about any other point?
→
A heavy nucleus X of mass number 240 and binding energy per nucleon 7.6 MeV is split into two fragments Y and Z of mass numbers 110 and 130. The binding energy of nucleons in Y and Z is 8.5 MeV per nucleon. Calculate the energy Q released per fission in MeV
→
Use the mirror equation to show that an object placed between f and 2f of a concave mirror forms an image beyond 2f.
→
Verify that the units weber and volt-second are the same.
→
A radioactive nucleus A undergoes a series of decay according to following scheme:
$\text{A}\ \xrightarrow{\ \alpha\ }\ \text{A}_1\ \xrightarrow{\ \beta\ }\ \text{A}_2\ \xrightarrow{\ \alpha\ }\ \text{A}_3\ \xrightarrow{\ \text{g}\ }\ \text{A}_4$
The mass number and atomic number of A are 180 and 72 respectively. What are these numbers for $A_4?$
→
The yellow colour has a greater luminous efficiency as compared to the other colours. Can we increase the illuminating power of a white light source by putting a yellow plastic paper around this source?
→
A uranium-238 nucleus, initially at rest, emits an alpha particle with a speed of $1.4 x 10^7 \ m/s$. Calculate the recoil speed of the residual nucleus thorium-234. Assume that the mass of a nucleus is proportional to the mass number.
→