Forces Review (for Flashcard 1)

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the product of mass and gravitational acceleration (W = m * g).

Front

How do you calculate the weight of an object on Earth?

Back

Weight on Earth can be calculated using the formula W = m * g, where g is approximately 9.8 m/s².

Front

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

Back

The net force acting on an object at rest is 0 N, as all forces are balanced.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

How does weight change on different planets?

Back

Weight changes on different planets due to varying gravitational forces; it is calculated using W = m * g, where g differs for each planet.

Front

What is the formula for calculating frictional force?

Back

Frictional force can be calculated using the formula F_friction = μ * N, where μ is the coefficient of friction and N is the normal force.

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object (measured in kg), while weight is the force of gravity acting on that mass (measured in N).

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

How do you determine the weight of an object in free fall?

Back

The weight of an object in free fall can be determined using W = m * g, where g is the acceleration due to gravity on that planet.