Understanding Forces and Motion

Front

What is the definition of force?

Back

A force is a push or pull acting upon an object, resulting from the object's interaction with another object.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is the formula for calculating work done?

Back

Work done (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of measurement for force in the International System of Units (SI)?

Back

Newton (N) is the unit of force.

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy (PE)?

Back

Potential energy is the energy stored in an object due to its position or configuration, commonly gravitational potential energy given by PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, conserving the total mechanical energy.

Front

What is the principle of conservation of energy?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in its energy; specifically, work done is equal to the change in kinetic energy.

Front

What is the definition of momentum?

Back

Momentum is the product of an object's mass and its velocity, represented as p = mv.