Basic Concepts of Physics

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What is the definition of physics?
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Physics is the branch of science concerned with the nature and properties of matter and energy.
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What is motion in physics?
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Motion is the change in position of an object with respect to time.
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Define force in physics.
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Force is a push or pull upon an object resulting from its interaction with another object.
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What is the unit of force?
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The unit of force is the Newton (N).
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What is energy?
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Energy is the ability to do work or cause change.
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What is the law of conservation of energy?
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Energy cannot be created or destroyed; it can only be transferred or changed from one form to another.
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What is mass?
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Mass is a measure of the amount of matter in an object.
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What is the difference between mass and weight?
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Mass is the amount of matter in an object, while weight is the force of gravity acting on that object.
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What is the unit of mass?
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The unit of mass is the kilogram (kg).
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What is a vector quantity?
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A vector quantity has both magnitude and direction, like velocity or force.
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What is a scalar quantity?
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A scalar quantity has only magnitude, like temperature or mass.
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What is acceleration?
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Acceleration is the rate of change of velocity of an object with respect to time.
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What is velocity?
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Velocity is the speed of something in a given direction.
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What is friction?
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Friction is the resistance that one surface or object encounters when moving over another.
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What is gravity?
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Gravity is a force that attracts any two objects with mass.
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