Mechanics in Physics Quiz

Scalar quantity has magnitude only, distance represents magnitude of displacement.

Newton is the unit of force in the International System of Units (SI).

Kinetic energy is calculated as one-half the mass times the square of the velocity.

Torque is the product of force and the perpendicular distance from the axis of rotation, measured in Newton-meters.

Projectile motion involves objects thrown or projected into the air and moving under the influence of gravity.

Newton's Third Law states that for every action, there is an equal and opposite reaction.

Newton's second law relates force, mass, and acceleration.

Weight is the force exerted on an object due to gravity, calculated as mass times acceleration due to gravity.

At the highest point, velocity becomes zero in vertical motion.

In isolated systems, momentum is conserved.

Constant speed implies no change in velocity, hence zero acceleration.

Angular momentum of a rotating object depends on its moment of inertia and angular velocity.

Acceleration is the rate of change of velocity over time.

Work is the product of force, displacement, and the cosine of the angle between them.

Moment of inertia is a scalar quantity that depends only on the shape and distribution of mass of the object.

The period of a pendulum is determined by its length and the gravitational acceleration.

Work is the product of force and displacement in the direction of the force.

In projectile motion, horizontal acceleration is zero while vertical acceleration is due to gravity.