Forces Review (for Flashcard 1)

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.8 m/s².

Front

How do you calculate the mass of an object if you know its weight?

Back

Mass (m) = Weight (W) / acceleration due to gravity (g).

Front

What is the net force acting on an object at rest?

Back

The net force is 0 N.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object.

Front

What factors affect the force of friction?

Back

The nature of the surfaces in contact and the normal force acting on the object.

Front

What is gravitational force?

Back

Gravitational force is the attraction between two masses.

Front

How do you calculate the force of friction?

Back

Force of friction = coefficient of friction × normal force.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the relationship between mass and weight?

Back

Weight is directly proportional to mass; as mass increases, weight increases.