AQA A LEVEL PHYSICS EXAM PRACTICE QUESTIONS

The principle of conservation of energy states that energy cannot be created or destroyed, only transferred or converted from one form to another.

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Hookes Law states that the force exerted by a spring is directly proportional to the extension or compression of the spring, provided the limit of proportionality is not exceeded. Mathematically, F = kx, where F is the force, k is the spring constant, and x is the extension/compression.

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Scalar quantities have only magnitude (e.g., mass, temperature), while vector quantities have both magnitude and direction (e.g., velocity, force).

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Work done is defined as the product of the force applied to an object and the distance over which the force is applied, in the direction of the force. It is given by W = Fd cos(θ), where W is work done, F is force, d is distance, and θ is the angle between the force and the direction of movement.

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Newtons First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by a resultant external force.

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Momentum is the product of an objects mass and its velocity. It is a vector quantity, given by p = mv, where p is momentum, m is mass, and v is velocity.

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The principle of moments states that for an object to be in equilibrium, the sum of the clockwise moments about any point must be equal to the sum of the counterclockwise moments about that point.

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Electric current is the rate of flow of electric charge through a conductor. It is measured in amperes (A).

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