Download App

Work And Energy — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWork And Energy1 Mark
MCQ
From the following statements find the one that is NOT correct :
  • A
    A flying bird has both potential and kinetic energy
  • B
    A ball rolling on the ground has kinetic energy but no mechanical energy
  • C
    A stretched rubber band has potential energy.
  • D
    Chemical energy can be converted into electrical energy
✓

Answer

  1. A ball rolling on the ground has kinetic energy but no mechanical energy

Explanation:

The energy of an object by virtue of its motion is known as potential energy.

The energy possessed by a body due to its change in position or shape is called potential energy. For example, A stretched rubber band.

The sum of kinetic energy and potential energy of an object is its total mechanical energy.

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 M]" from Work And Energy→Work And Energy — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

The cell wall of meristematic cell is made of:

  1. Protein
  2. Amino acid
  3. Peptidoglycan
  4. Cellulose
→

What is true in a scientific name?

  1. Specific name is written first.
  2. Generic name starts with small letter.
  3. Generic name starts with capital letter while specific name starts with small letter.
  4. It is written in English.
→

Cylindrical muscle fibres which show alternate light and dark bands are:

  1. Smooth muscle.
  2. Cardiac muscle fibres.
  3. Tendons.
  4. Striated muscle fibres.
→
Molecular mass is expressed in:
→
The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
→
The weight of an object:
→
In liquids, there is ____________ and ____________ between particles:
→
An iron sphere of mass 10kg has the same diameter as an aluminium sphere of mass is 3.5kg. Both spheres are dropped simultaneously from a tower. When they are 10m above the ground, they have the same:
→
The master mind of the cell is:
→
The cell sap in plant cells consists of:
→