Memory List

Question 1

Kinematics

Answer 1

The study of the mathematics of motion without regard to the forces involved.

Question 2

Kinetics

Answer 2

The study of the force-motion relationship.

Question 3

Particle Dynamics

Answer 3

An object whose motion may be analyzed without regard to rotation about an axis through the object.

Question 4

Rigid Body

Answer 4

An object whose motion may not be analyzed without regard to rotation about an axis through the object.

Question 5

Position Vector

Answer 5

A vector whose tip indicates the location of a point (particle) or a point on a rigid body.

Question 6

Velocity Equation

Answer 6

Question 7

Acceleration Equation

Answer 7

Question 8

V-DOT-S-V Equation

Answer 8

Question 9

Cartesian Coordinates

Answer 9

Rectangular Coordinates

Question 10

Vector

Answer 10

A vector has magnitude and direction.

Question 11

Position Vector in Cylindrical Coordinates

Answer 11

Question 12

Velocity Vector in Cylindrical Coordinates

Answer 12

Question 13

Acceleration Vector in Cylindrical Coordinates

Answer 13

Question 14

Particle

Answer 14

An object whose motion may be analyzed without regard to rotation about an axis through an object.

Question 15

Clues to use Rectangular Coordinates

Answer 15

1. Rectilinear Motion
2. Simple Projectile Motion
3. Acceleration in a given direction that depends only on time and/or motion parameters in that direction.

Question 16

Velocity in Normal & Tangental Coordinates

Answer 16

Question 17

Acceleration in Normal & Tangental Coordinates

Answer 17

Question 18

Path

Answer 18

Locations of the tips of the r-bars.

Question 19

Relative Position

(Position of B with respect to A)

Answer 19

Question 20

Newton’s 1st Law

Answer 20

An object in motion will remain in motion with a constant velocity unless acted upon by an unbalanced external force. An object at rest will remain at rest unless acted upon by an unbalanced external force.

Question 21

Newton’s 2nd Law

Answer 21

Question 22

Newton’s 3rd Law

Answer 22

The forces of action and reaction are equal in magnitude, but opposite in sign.

Question 23

Inertial Reference Frame

Answer 23

Fixed reference frame.

Question 24

Inertia

Answer 24

Resistance to acceleration.

Question 25

Linear Momentum

Answer 25

Question 26

Rules for Drawing a FBD

Answer 26

1. Select system 2. Replace every other object by the force or forces (moments) it exerts on the system. 3. Assumptions 4. Kinematics 5. Kinetics 6. Solve for unknowns 7. Sub into equations

Question 27

What is true about every kinematics problem?

Answer 27

Every kinetics problem is also a kinematics problem.

Question 28

Units

Answer 28

Standards for physical quantities.

Question 29

Newton

Answer 29

The force required to accelerate a mass of 1 kg at a rate of 1 m/s² .

Question 30

Pound Force

Answer 30

The force required to accelerate a mass of 1 lbm at a rate of 32.2 ft/s² .

Question 31

Weight of 1 lbm

Answer 31

The weight of 1 lbm on earth is 1 lbf.

Question 32

Wabrek's Rules for Those Who Hate English Units

Answer 32

1. Masses must have units of mass (lbm, ozm). 2. Forces must have units of force (lbf, ozf). 3. Convert as necessary, usually with 1 lbf / (1 lbm x 32.2 ft/s²)

Question 33

Linear Impulse & Momentum Equation

Answer 33

Question 34

Linear Impulse

Answer 34

Question 35

Clues to use Impulse & Momentum Equation

Answer 35

1. Collision, separation, and/or relative motion of 2 or more particles. 2. ∆t is given or asked for. 3. F_avg is given or asked for.

Question 36

Fundamental Concept of Impulse & Momentum Equation

Answer 36

Conservation of Linear Momentum in the Universe

Question 37

Source of the Impulse & Momentum Equation

Answer 37

Newton's 2nd law integrated over time.

Question 38

Standard Assumptions for Collisions

Answer 38

1. Ignore all non-impact forces during the event. 2. No change in position during impact. 3. Instantaneous ∆v for objects.

Question 39

Coefficient of Restitution

Answer 39

Question 40

Euler's Second Law

Answer 40

Question 41

Angular Impulse & Momentum Equation

Answer 41

Question 42

Angular Momentum of a Particle About Point O

Answer 42

Question 43

Source of the Work & Energy Equation

Answer 43

Newton's 2nd Law, Integrated over Displacement

Question 44

Significance of the Work & Energy Equation

Answer 44

Conservation of Mechanical Energy