AP Physics Unit 2 Part II

Front

What is the formula for calculating the normal force on an object on an inclined plane?

Back

The normal force (N) is calculated as N = mg cos(θ), where m is the mass, g is the acceleration due to gravity, and θ is the angle of the incline.

Front

What is centripetal force?

Back

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

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

What is the value of the Universal Gravitational Constant (G)?

Back

The value of the Universal Gravitational Constant is 6.673 x 10^-11 N m²/kg².

Front

What is Hooke's Law?

Back

Hooke's Law states that the force (F) needed to extend or compress a spring by some distance (x) is proportional to that distance, expressed as F = kx, where k is the spring constant.

Front

What is the relationship between mass and weight?

Back

Weight (W) is the force exerted by gravity on an object, calculated as W = mg, where m is mass and g is the acceleration due to gravity.

Front

What is the net force acting on an object in free fall at constant velocity?

Back

The net force acting on an object in free fall at constant velocity is 0 N, as the forces of gravity and air resistance are balanced.

Front

How do you calculate the force required to stretch a spring?

Back

The force required to stretch a spring is calculated using Hooke's Law: F = kx, where k is the spring constant and x is the displacement.

Front

What is the formula for gravitational force between two masses?

Back

The gravitational force (F) between two masses (m1 and m2) is given by F = G(m1m2)/r², where G is the gravitational constant and r is the distance between the centers of the two masses.

Front

What is the significance of the angle in inclined plane problems?

Back

The angle of the incline affects the components of forces acting on the object, particularly the normal force and gravitational force.