# Physics MCQ Class 10 With Answers

## Physics MCQ Class 10 With Answers

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### Physics MCQ Class 10

What is the unit of force?
a. Newton (N)
b. Joule (J)
c. Watt (W)
d. Pascal (Pa)
Answer: a. Newton (N). Newton is the SI unit of force. It is defined as the amount of force required to give a mass of 1 kg an acceleration of 1 m/s².

Which of the following is a scalar quantity?
a. Velocity
b. Acceleration
c. Mass
d. Force
Answer: c. Mass. Scalar quantities have only magnitude and no direction, and mass is a scalar quantity.

What is the unit of work?
a. Joule (J)
b. Newton (N)
c. Watt (W)
d. Pascal (Pa)
Answer: a. Joule (J). Joule is the SI unit of work. It is defined as the product of force and displacement in the direction of force.

Which of the following is a vector quantity?
a. Temperature
b. Time
c. Speed
d. Displacement
Answer: d. Displacement. Vector quantities have both magnitude and direction, and displacement is a vector quantity.

What is the unit of power?
a. Joule (J)
b. Newton (N)
c. Watt (W)
d. Pascal (Pa)
Answer: c. Watt (W). Watt is the SI unit of power. It is defined as the rate at which work is done or energy is transferred.

Which of the following is an example of a non-contact force?
a. Friction
b. Gravitational force
c. Magnetic force
d. Tension
Answer: c. Magnetic force. Non-contact forces act without any physical contact between the objects involved, and magnetic force is an example of a non-contact force.

What is the unit of electric current?
a. Volt (V)
b. Ampere (A)
c. Ohm (Ω)
d. Watt (W)
Answer: b. Ampere (A). Ampere is the SI unit of electric current. It is defined as the rate of flow of electric charge.

What is the principle of conservation of energy?
a. Energy cannot be created or destroyed, only transferred or transformed from one form to another.
b. Energy cannot be transferred or transformed from one form to another.
c. Energy can be created or destroyed.
d. None of the above.
Answer: a. Energy cannot be created or destroyed, only transferred or transformed from one form to another. The principle of conservation of energy states that the total amount of energy in a closed system remains constant and is only transformed from one form to another.

What is the SI unit of electric potential difference?
a. Volt (V)
b. Ampere (A)
c. Ohm (Ω)
d. Watt (W)
Answer: a. Volt (V). Volt is the SI unit of electric potential difference. It is defined as the work done per unit charge to move a charge from one point to another.

What is the unit of resistance?
a. Volt (V)
b. Ampere (A)
c. Ohm (Ω)
d. Watt (W)
Answer: c. Ohm (Ω). Ohm is the SI unit of resistance. It is defined as the ratio of electric potential difference across a conductor to the current flowing through it.

What is the formula for calculating power?
a. Power = Work × Time
b. Power = Force × Displacement
c. Power = Current × Voltage
d. Power = Energy ÷ Time
Answer: d. Power = Energy ÷ Time. Power is the rate at which work is done or energy is transferred, and it is calculated by dividing the amount of energy transferred by the time it takes to transfer that energy.

Which law of motion states that every action has an equal and opposite reaction?
a. First law of motion
b. Second law of motion
c. Third law of motion
d. None of the above
Answer: c. Third law of motion. The third law of motion states that for every action, there is an equal and opposite reaction. This means that whenever one object exerts a force on another object, the second object exerts an equal and opposite force on the first object.

What is the SI unit of momentum?
a. Newton (N)
b. Joule (J)
c. Watt (W)
d. Kilogram-meter per second (kg m/s)
Answer: d. Kilogram-meter per second (kg m/s). Momentum is a vector quantity that is defined as the product of an object’s mass and its velocity, and its SI unit is kilogram-meter per second.

What is the principle of superposition?
a. When two waves meet, they interfere with each other to create a resultant wave.
b. The net force on an object is equal to the product of its mass and acceleration.
c. The displacement of a system due to two or more waves is the algebraic sum of the individual displacements caused by each wave.
d. None of the above.
Answer: c. The displacement of a system due to two or more waves is the algebraic sum of the individual displacements caused by each wave. This is known as the principle of superposition, which states that when two or more waves meet, their displacements combine to form a resultant displacement.

Which of the following statements is true for a concave mirror?
a. It always forms an inverted image.
b. It always forms a real image.
c. It always forms a virtual image.
d. None of the above.
Answer: d. None of the above. The characteristics of the image formed by a concave mirror depend on the position of the object relative to the focal point and the mirror’s radius of curvature. It can form either a real or a virtual image, and the image can be inverted or upright depending on the object’s position.

What is the SI unit of frequency?
a. Hertz (Hz)
b. Pascal (Pa)
c. Newton (N)
d. Watt (W)
Answer: a. Hertz (Hz). Frequency is the number of cycles of a wave that occur in one second, and its SI unit is hertz (Hz).

Which of the following statements is true for an electric circuit with one battery and two resistors in series?
a. The current through both resistors is the same.
b. The voltage across both resistors is the same.
c. The total resistance of the circuit is the sum of the resistances of the two resistors.
d. None of the above.
Answer: b. The voltage across both resistors is the same. In a series circuit, the current through each resistor is the same, but the voltage across each resistor is different. The total resistance of the circuit is the sum of the resistances of the two resistors.

Which of the following statements is true for a conductor?
a. It has low electrical resistance.
b. It has high electrical resistance.
c. It has low electrical conductivity.
d. None of the above.
Answer: a. It has low electrical resistance. A conductor is a material that allows electric current to pass through it easily, and it has low electrical resistance.

Which of the following statements is true for a convex lens?
a. It always forms an inverted image.
b. It always forms a real image.
c. It always forms a virtual image.
d. None of the above.
Answer: d. None of the above. The characteristics of the image formed by a convex lens depend on the position of the object relative to the focal point and the lens’s focal length. It can form either a real or a virtual image, and the image can be inverted or upright depending on the object’s position.

What is the SI unit of capacitance?
b. Ohm (Ω)
c. Hertz (Hz)
d. Joule (J)
Answer: a. Farad (F). Capacitance is a measure of a capacitor’s ability to store electric charge, and its SI unit is farad (F).

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