Mechanics and Dynamics in Physics Quiz

Vector quantity implies direction as well as magnitude; acceleration has both.

Newton's second law states force equals mass times acceleration.

When displacement is perpendicular to the force, no work is done.

Torque is measured in Newton-meters.

Scalars have only magnitude; displacement is a scalar.

Force is measured in Newtons.

Newton's third law states action equals reaction, hence F equals negative F.

Both work and energy are measured in Joules.

Equilibrium implies no acceleration; thus, net force and torque are zero.

Friction acts opposite to the direction of motion.

This equation represents the displacement of a particle undergoing simple harmonic motion.

The total momentum of a closed system remains constant over time.

It describes the force of attraction between two masses.

Static equilibrium is a type of equilibrium.

Friction dissipates mechanical energy and is non-conservative.

It quantifies the elasticity of collisions.

Centripetal force keeps objects in circular motion and is given by this formula.

As kinetic energy increases in a conservative system, potential energy decreases.

A projectile follows a parabolic trajectory in the absence of air resistance.

It states mechanical energy remains constant if only conservative forces are at work.

In uniform circular motion, velocity is constant, but direction changes.

Pressure is uniform in all directions in hydrostatic equilibrium.