Fall Final Review

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of a circular path, necessary for an object to maintain circular motion. It can be calculated using the formula: a_c = v^2 / r, where v is the tangential velocity and r is the radius of the circular path.

Front

How do you calculate centripetal acceleration given tangential velocity and radius?

Back

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

Front

What is the formula for gravitational force?

Back

The gravitational force (F) between two masses can be calculated using Newton's law of universal gravitation: F = G * (m1 * m2) / r^2, where G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers of the two masses.

Front

What is the value of gravitational force on Earth for a mass of 2.5 kg?

Back

The gravitational force on Earth can be calculated using F = m * g, where g is approximately 9.8 m/s². For a 2.5 kg mass, F = 2.5 kg * 9.8 m/s² = 24.5 N, which can be rounded to 25 N.

Front

What is tension force?

Back

Tension force is the force exerted by a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is friction force?

Back

Friction force is the resistive force that opposes the motion of an object when it is in contact with another surface.

Front

What happens to gravitational force if one mass is doubled?

Back

If one mass in the gravitational force equation is doubled, the gravitational force between the two masses also doubles, assuming the distance remains constant.

Front

What is the difference between applied force and normal force?

Back

Applied force is the force applied to an object by a person or another object, while normal force is the support force exerted by a surface perpendicular to the object resting on it.

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 m is mass and g is the acceleration due to gravity.

Front

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

Back

The unit of force in the SI system is the Newton (N). One Newton is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.