10th Board Exam Science 1

<p>Heat required to change the state of matter (D)</p> Signup and view all the answers

<p>It involves the transfer of electrons (A)</p> Signup and view all the answers

<p>Can be physically separated (C)</p> Signup and view all the answers

<p>Cells can arise spontaneously (C)</p> Signup and view all the answers

<p>Symbiosis (D)</p> Signup and view all the answers

<p>For every action, there is an equal and opposite reaction. (D)</p> Signup and view all the answers

<p>It is essential for calculating gravitational force between two masses. (D)</p> Signup and view all the answers

<p>Convex mirror (D)</p> Signup and view all the answers

<p>Current is directly proportional to voltage and inversely proportional to resistance. (C)</p> Signup and view all the answers

<p>Dispersion (B)</p> Signup and view all the answers

<p>$KE = \frac{1}{2}mv^2$ (A)</p> Signup and view all the answers

<p>Gravitational force (D)</p> Signup and view all the answers

<p>It causes a magnetic field around the conductor. (C)</p> Signup and view all the answers

Describes the force of attraction between any two objects with mass, proportional to their masses and inversely proportional to the square of the distance between them.

A constant used in calculations involving gravitational force, representing the strength of gravitational interaction.

Motion along a curved path caused by a force directed towards the center of the circle.

The law stating that the total energy in an isolated system remains constant, although it can be transformed from one form to another.

The force that pushes an object towards the center of a circle during circular motion.

The splitting of white light into its component colors (violet, indigo, blue, green, yellow, orange, red) when it passes through a prism or a raindrop due to different refractive indices.

Describes the relationship between current (I), voltage (V), and resistance (R) in a circuit.

The property of a material that opposes the flow of electric current through it.

Magnets have two poles, north and south. Like poles repel each other, while unlike poles attract.

Heat is a form of energy that flows from a hotter object to a colder object.

Materials expand when heated and contract when cooled. Different materials expand and contract at different rates.

Conduction is heat transfer through direct contact. Convection is heat transfer through the movement of fluids. Radiation is heat transfer through electromagnetic waves.

Atoms are the basic building blocks of matter. They consist of protons, neutrons, and electrons.

Radioactivity is the spontaneous decay of unstable atomic nuclei, releasing energy and particles.

Ionic bonding occurs between oppositely charged ions due to electrostatic attraction. Covalent bonding involves sharing electrons between atoms.

All living things are composed of cells, which are the basic unit of life. Cells perform various functions necessary for life, like metabolism, reproduction, and response to stimuli.