Dynamics, Kinematics, And Vibrations

Question 1

What equation describe the natural frequency, ω, of a spring-mass system, in terms of deflection of the spring, δ, the spring constant, κ, and the mass, m?

Answer 1

Question 2

In calculus, how is linear impulse defined?

Answer 2

Question 3

An object in f mass m travels in a curvilinear trajectory with instantaneous radius of curvature r. What inertial normal force is generated?

Answer 3

Question 4

What equation gives the trajectory of an object under a constant force field, -mg?

Answer 4

Question 5

What is the value of gravitational acceleration, g, in English units?

Answer 5

Question 6

What is the value of the gravitational constant, gc?

Answer 6

Question 7

What formula is used to calculate the resultant force of a distributed load?

Answer 7

Question 8

How many foot-pounds per second are in 1 hp?

Answer 8

Question 9

What is Newton’s law of universal gravitation?

Answer 9

Question 10

What is the natural frequency, ω, of a mass swinging on a pendulum of length, L?

Answer 10

Question 11

Two springs with spring constant k1 and k2 are joined in series. What equation gives the equivalent spring constant, keq, of the whole system?

Answer 11

Question 12

The tangential and normal acceleration of any point on a rotating object can be related to the angular frequency, ω, angular acceleration, α, and the distance from the rotational axis to the point, r. What are these relationships?

Answer 12

Question 13

When does resonance occur?

Answer 13

This occurs when the forcing frequency on a system is equal to the natural frequency of the system. Theoretically, oscillations can become infinitely large.

Question 14

What equation gives the period of a simple pendulum of mass m and length L?

Answer 14

Question 15

An object travels with velocity v in a curvilinear motion with an instantaneous radius of curvature r. What formula shows the centripetal force generated?

Answer 15

Question 16

A simple mass-spring system has mass m, spring constant k, and coefficient of viscous damping C. What is the system’s equation of motion?

Answer 16

Question 17

A projectile is in a constant and negative acceleration field. What equation gives the projectile’s elevation, y(t), for a particular time, t?

Answer 17

Question 18

What is projectile motion?

Answer 18

This is motion under a constant acceleration force (gravity or other)

Question 19

A distance traveled by an object at time t is given as r(t). What equation gives its acceleration at time t?

Answer 19

Question 20

What is kinetic friction force, and what equation describe it in relation to the kinetic coefficient of friction, fk, and normal force, N?

Answer 20

Question 21

Dynamics is the study of rigid bodies with unbalanced forces acting on them. The forces result in the acceleration (a) of the object. What equation describes a three-dimensional dynamic situation?

Answer 21

Question 22

In physics, how is power defined?

Answer 22

Question 23

What is joule’s law of energy?

Answer 23

This law states that one energy form can be converted into another without loss.

Question 24

What distinguishes the energy and momentum equation from each other?

Answer 24

This first equation is a scalar relationship that describes the energy conditions internal to the system. This second equation is a vector relationship that describes conditions at the system boundaries (forces and fluxes)