Physics Class X

What is Newton's first law of motion?

• An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

• An object will accelerate if no force is acting on it

• An object will stop moving if no force is acting on it

• An object will change direction if no force is acting on it

What is the atomic structure of an atom?

• Protons and neutrons in the nucleus, electrons in energy levels or shells

• Electrons and neutrons in the nucleus, protons in energy levels

• Protons and electrons in the nucleus, neutrons in energy levels

• Neutrons and electrons in the nucleus, protons in energy levels

What is the difference between organic and inorganic chemistry?

• Organic chemistry involves carbon-containing compounds, while inorganic chemistry involves compounds without carbon.

• Organic chemistry only involves gases, while inorganic chemistry only involves solids.

• Organic chemistry focuses on man-made substances, while inorganic chemistry focuses on natural compounds.

• Organic chemistry deals with living organisms, while inorganic chemistry deals with non-living things.

How many elements are there in the periodic table?

• 64

• 150

• 92

• 118

Explain Newton's second law of motion.

• The force acting on an object is equal to the mass of that object divided by its acceleration.

• The force acting on an object is equal to the mass of that object multiplied by its acceleration.

• Newton's second law of motion states that velocity is directly proportional to acceleration.

• Acceleration is inversely proportional to the mass of an object according to Newton's second law.

What are the subatomic particles of an atom?

• Quarks

• Protons, Neutrons, Electrons

• Positrons

• Photons

What are functional groups in organic chemistry?

• Functional groups are only found in inorganic compounds.

• Functional groups have no impact on the chemical properties of molecules.

• Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.

• Functional groups are inert components in organic molecules.

What is the significance of the periodic table?

• The periodic table is a map of the solar system

• The periodic table is a tool for weather forecasting

• The significance of the periodic table lies in its ability to organize elements and predict their properties.

• The periodic table is used for cooking recipes

State Newton's third law of motion.

• The reaction is always greater than the action.

• For every action, there is no reaction.

• Every action has an unequal and opposite reaction.

• For every action, there is an equal and opposite reaction.

How are elements arranged in the periodic table?

• Based on atomic weight

• Based on atomic number

• Randomly

• Alphabetically