MDCAT Physics MCQs

Centripetal acceleration changes the direction of velocity.
It always points radially inward.

Centripetal force is not a separate force type.
It may be supplied by tension, friction, gravity, or another force.

A particle in translational equilibrium has no acceleration.
It may be at rest or moving at constant velocity.

Average velocity is a vector based on net displacement.
A round trip can have zero average velocity.

Vector addition replaces multiple vectors with an equivalent single vector.
Its direction and magnitude depend on the original vectors.

Slope gives change in displacement per unit time.
That is the definition of velocity.

Perpendicular vector components form a right triangle.
The resultant magnitude is found from the sum of squared components.

Slope gives change in velocity per unit time.
That is acceleration.

One kilometre equals 1,000 metres.
Therefore 3.5 km = 3.5×1,000 = 3,500 m.

Integrating velocity over time gives displacement.
Areas below the time axis count as negative displacement.

One metre equals 100 centimetres.
Therefore 250 cm ÷ 100 = 2.5 m.

Uniform acceleration means velocity changes by equal amounts in equal times.
The standard kinematic equations apply.