GAT Subject Physics MCQs

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

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

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

Inertia is related to mass.
Greater mass means greater resistance to acceleration.

The first law describes inertia.
A net external force is required to change velocity.

For constant mass, Newton's second law becomes F=ma.
It links net force to acceleration.

Use the Pythagorean theorem for perpendicular components.
Magnitude = √(3²+4²)=5.

The x-component is A cosθ.
10 cos60° = 10×0.5 = 5.

The y-component is A sinθ.
10 sin30° = 10×0.5 = 5.

The newton is derived from base units as kg·m/s².
Metre, kilogram, and second are base units.

Vectors in the same direction add directly.
The resultant is 12+7 = 19 N.

Precision describes repeatability.
Measurements can be precise without being accurate.