Question
Define the term ‘uniform acceleration’. Give one example of a uniformly accelerated motion.

Answer

A body has uniform acceleration if it travels in a straight line and its velocity increases by equal amounts in equal intervals of time.
For example: A freely falling body has uniform acceleration.

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

Similar questions

Draw a labeled diagram of the experimental set-up to study the latent heat of vaporization of water.
Define momentum of a body. On what factors does the momentum of a body depend?
Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium sulphate. In an experiment, 15.95g of copper sulphate reacted with 8.0g of sodium hydroxide to form 9.75g of copper hydroxide and 14.2g of sodium sulphate. Which law of chemical combination is illustrated by this data? Give reason for your choice.
The substance X normally exists in a physical state which can flow easily but does not fill its vessel completely. It also turns anhydrous copper sulphate blue. When substance X is cooled excessively, it changes into a substance Y which has a fixed shape as well as a fixed volume. If, however, the substance X is heated strongly, it changes into a substance Z which has neither a fixed shape nor a fixed volume.
  1. Name the substances (i) X (ii) Y and (iii) Z.
  2. What is the process of conversion of X into Y known as?
  3. At which temperature X gets converted into Y?
  4. What is the process of conversion of X into Z known as?
  5. At which temperature X gets converted into Z?
A body of mass $2\ kg$ is thrown vertically upwards with an initial velocity of $20\ m / s$. What will be its potential energy at the end of $2\ s$ ? (Assume $g =10 m / s ^2$ ).
Derive the relation between commercial unit of energy $(kWh)$ and SI unit of energy $(joule)$.
A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds. If the acceleration of the stone be $9.8 m / s ^2$ directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.
A cheetah starts from rest, and accelerates at $2m/s^2$ for $10$ seconds. Calculate:
The final velocity.
A body of mass 5kg is moving with a velocity of 10m/s. A force is applied to it so that in 25 seconds, it attains a velocity of 35m/s. Calculate the value of the force applied.
A body vibrating with a time-period of $\frac{1}{256}\text{s}$ produces a sound wave which travels in air with a velocity of 350m/s. Calculate the wavelength.