Circular Motion and Gravitation

Front

What is net force?

Back

The net force is the vector sum of all the forces acting on an object. If the forces are balanced, the net force is 0 N.

Front

What is centripetal force?

Back

Centripetal force is the force that keeps an object moving in a circular path, directed towards the center of the circle.

Front

What is gravitational field strength?

Back

Gravitational field strength is the force of gravity acting on a unit mass at a specific location, measured in N/kg.

Front

How do you calculate centripetal acceleration?

Back

Centripetal acceleration (a_c) can be calculated using the formula: a_c = v^2 / r, where v is the velocity and r is the radius of the circular path.

Front

What is the formula for gravitational force?

Back

The formula for gravitational force (F) is F = m * g, where m is mass and g is the gravitational field strength.

Front

What is the relationship between mass and weight?

Back

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

Front

What is the significance of a 0 N net force?

Back

A net force of 0 N indicates that an object is in equilibrium, meaning it is either at rest or moving at a constant velocity.

Front

How does velocity affect centripetal acceleration?

Back

Centripetal acceleration increases with the square of the velocity; if velocity doubles, centripetal acceleration increases by a factor of four.

Front

What is the formula for calculating velocity in circular motion?

Back

Velocity (v) in circular motion can be calculated using the formula: v = 2 * π * r / T, where r is the radius and T is the period.

Front

What is the role of centripetal force in orbital motion?

Back

Centripetal force is essential for maintaining an object's orbit, as it counteracts the gravitational pull towards the center of the orbit.