Forces and Net Force Flashcard

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces interact and can be helpful or harmful depending on the situation.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

What is the formula for calculating weight?

Back

Weight (W) is calculated using the formula W = m * g, where m is mass in kilograms and g is the acceleration due to gravity (approximately 9.81 m/s²).

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the role of normal force?

Back

Normal force is the support force exerted upon an object that is in contact with another stable object, acting perpendicular to the surface.

Front

How does friction help in everyday life?

Back

Friction helps in everyday life by providing the necessary grip for walking, driving, and stopping, such as the friction between tires and the road.

Front

What is the coefficient of friction?

Back

The coefficient of friction (μ) is a numerical value that represents the frictional force between two objects in contact, affecting how easily they slide past each other.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the force that pulls objects toward the Earth.

Front

How do you calculate the force of friction?

Back

The force of friction (F_f) can be calculated using the formula F_f = μ * N, where μ is the coefficient of friction and N is the normal force.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on an object at rest and prevents it from moving, while kinetic friction acts on an object in motion.