Final Review - Forces

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration of an object moving in a circular path, directed towards the center of the circle. It can be calculated using the formula: a_c = v^2 / r, where v is the velocity and r is the radius.

Front

How do you calculate net force?

Back

Net force is calculated by subtracting the total opposing forces from the total applied forces. If the forces are balanced, the net force is zero.

Front

What is normal force?

Back

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 are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is the formula for calculating force?

Back

Force can be calculated using Newton's second law: F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is the significance of mass in force calculations?

Back

Mass is a measure of the amount of matter in an object and affects how much force is needed to accelerate the object. More mass requires more force.

Front

What is lift force?

Back

Lift force is the upward force that opposes the weight of an object and is crucial for objects like balloons and aircraft to rise.

Front

How do you determine the direction of net force?

Back

The direction of net force is determined by the direction of the greater force acting on the object. If forces are balanced, the net force is zero.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object and is calculated as W = m * g, where W is weight, m is mass, and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

Front

What is the formula for centripetal force?

Back

Centripetal force can be calculated using the formula: F_c = m * a_c, where F_c is centripetal force, m is mass, and a_c is centripetal acceleration.