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Mechanical Analysis

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Equation of impulse
Us
i = F*t
Mass
N*s

2. Equation for Strain enegy
I
a = F/m
SE = 1/2kx^2
Kinematics

3. Newton's 2nd Law of Motion (law of acceleration)
Power
When two objects are in contact - the force applied by one object is equal and opposite to that which the second object applies on the first
Kinematics
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it

4. Equation of Power equals Strength times Speed
P = F * v
Strain Energy
P = F * (s/t)
P

5. The capacity to do mechanical work
a = F/m
m
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Mechanical energy

6. The energy due to the position that a body occupies relative to the earths surface
N*s
Potential Energy
Kinetic Energy
P = F * (s/t)

7. Force acting perpendicular to two surfaces in contact
Net Force
F
Fs
Normal reaction force

8. The rate of the mechanical work done by a force
Us
Fs
Power
Potential Energy

9. Product of mass and linear velocity
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
i = F*t
Linear momentum
Potential Energy

10. Kinetic energy (KE) and Potential Energy (PE)
p = mv
W = F * s
Forms of mechanical energy
P = (F*s)/t

11. Coefficient of static friction
Forms of mechanical energy
Us
I
F

12. Equation for kinetic friction
a
Kinematics
I = F * t
Fk = Uk * R

13. Equation for Kinetic Energy
Net Force
h
N*s
KE = 1/2 mv^2

14. Static - Kinetic - and Rolling
Types of friction
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
P
PE = mgh

15. Symbol for Watts
W
Uk
h
Static Friction

16. Newton's 1st Law of motion (law of inertia)
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Kinetic Energy
SE = 1/2kx^2
I = F * t

17. Symbol for displacement
Impulse
Static Friction
s
Net Force

18. Equation for Impulse
I = F * t
W
i = F*t
Fs = Us * R

19. SI unit for impulse
Net Force
N*s
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
P = F * v

20. The spring constant
W = F * s
if an object is at rest or moving with a constant velocity then the forces on it must be...
Fs
k

21. Symbol of mass
a
m
i = F*t
PE = mgh

22. SI unit for mechanical energy
P
Joule (J)
a
k

23. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
i = F*t
Free Body Diagram
Normal reaction force
KE = 1/2 mv^2

24. Physical quantity that is completely described by its magnitude (mass - volume - length)
Scalar
m
I
Fk = Uk * R

25. An interaction between two objects/bodies that change or tend to change their motion (Vector)
F=ma
Force
symbol for momentum
Us

26. The frictional force between two surfaces when there is no movement between the surfaces
Static Friction
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Scalar
Work

27. Coefficient of kinetic friction
Uk
s
Mechanical energy
Static Friction

28. Equation for static friction
Fs = Us * R
W = F * s
Eccentric Force
Strain Energy

29. Symbol for power - measured in Watts (W)
P
Net Force
Inertia
Kinetics

30. P
Kinetic Friction
symbol for momentum
P = F * (s/t)
Fs = Us * R

31. Newton's 3rd Law of Motion (law of reaction)
Work
Net Force
Torque
When two objects are in contact - the force applied by one object is equal and opposite to that which the second object applies on the first

32. Symbol of Force
Strain Energy
Us
Fs = Us * R
F

33. Static friction
Forms of mechanical energy
Fs
Center of Gravity
PE = mgh

34. Mechanical work is equal to the product of magnitude of the force is applied to an object and the displacement undergone by the object in the direction that the force is being applied
Force
Work
KE = 1/2 mv^2
Normal reaction force

35. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
I
F
P = F * v
Frictional Force

36. Tendency of a body to resist a change in its state of motion
Frictional Force
Inertia
Joule (J)
a

37. The study of what causes motion (describes the forces that cause motion)
Torque
h
k
Kinetics

38. Symbol for gravity
g
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
Linear momentum
Work

39. The frictional force between two surfaces when there is movement between the surfaces
Fk = Uk * R
Potential Energy
Power
Kinetic Friction

40. A force acting away from the CoG of a body induces translation AND rotation
W = F * s
Fs
symbol for momentum
Eccentric Force

41. A force acting through the CoG of a body induces translation
concentric force
h
Fk
When two objects are in contact - the force applied by one object is equal and opposite to that which the second object applies on the first

42. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Kinematics
Eccentric Force
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
Kinetics

43. Resultant force derived from the composition of two or more forces
N*s
a
Net Force
h

44. Symbol of Impulse
g
I
Scalar
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force

45. SI unit of Force
s
k
Newton (N)
Torque

46. Rotary effect of a force
symbol for momentum
Torque
Potential Energy
T

47. Kinetic friction
Fs
Fk
Strain Energy
Free Body Diagram

48. Product of force X time over which the force acts
Impulse
Kinetic Friction
concentric force
Linear momentum

49. Equation for work
g
When two objects are in contact - the force applied by one object is equal and opposite to that which the second object applies on the first
Newton (N)
W = F * s

50. Point around which a body's weight is equally balanced - no matter how the body is positioned.
concentric force
Center of Gravity
P
W