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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. Tendency of a body to resist a change in its state of motion
I
k
Newton (N)
Inertia

2. Equation for Kinetic Energy
KE = 1/2 mv^2
I = F * t
Fs
P = F * v

3. zero OR balanced
Forms of mechanical energy
if an object is at rest or moving with a constant velocity then the forces on it must be...
Free Body Diagram
Impulse

4. Symbol of Impulse
I
Impulse
I = F * t
a = F/m

5. Newton's 1st Law of motion (law of inertia)
Forms of mechanical energy
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Scalar
k

6. Coefficient of static friction
g
Joule (J)
Us
Force

7. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Kinematics
Torque
Force
Potential Energy

8. Coefficient of kinetic friction
concentric force
Uk
P = F * v
m

9. A force acting through the CoG of a body induces translation
s
Inertia
concentric force
i

10. Symbol for displacement
Newton (N)
Normal reaction force
s
i = F*t

11. Newton's 3rd Law of Motion (law of reaction)
p = mv
F=ma
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
W = F * s

12. The energy due to the position that a body occupies relative to the earths surface
g
Kinetic Friction
Fs
Potential Energy

13. A force acting away from the CoG of a body induces translation AND rotation
Kinematics
symbol for momentum
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
Eccentric Force

14. Product of force X time over which the force acts
Vector
Impulse
Mass
W = F * s

15. The frictional force between two surfaces when there is no movement between the surfaces
Forms of mechanical energy
Static Friction
Mechanical energy
KE = 1/2 mv^2

16. SI unit for impulse
N*s
I
P = F * v
Us

17. Point around which a body's weight is equally balanced - no matter how the body is positioned.
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Kinetic Friction
Center of Gravity
Fk

18. The study of what causes motion (describes the forces that cause motion)
symbol for momentum
Kinetics
SE = 1/2kx^2
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

19. The frictional force between two surfaces when there is movement between the surfaces
Kinetic Friction
Strain Energy
a = F/m
Uk

20. Equation for static friction
Impulse
Potential Energy
P = F * v
Fs = Us * R

21. Rotary effect of a force
h
Scalar
Fk
Torque

22. Rearrangement of equation for Power
P = F * (s/t)
P = (F*s)/t
Work
m

23. Static friction
s
Fs
PE = mgh
T

24. Kinetic energy (KE) and Potential Energy (PE)
Net Force
Forms of mechanical energy
Uk
i

25. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Fs
Kinetic Friction
Force
Free Body Diagram

26. Equation of Force
Frictional Force
F=ma
p = mv
Kinetic Friction

27. P
Linear momentum
Power
Eccentric Force
symbol for momentum

28. Symbol for acceleration
Potential Energy
Force
a
symbol for momentum

29. Quantity of matter contained in an object
PE = mgh
m
Mass
i

30. Symbol for power - measured in Watts (W)
Forms of mechanical energy
P
PE = mgh
Vector

31. The capacity to do mechanical work
Fs
N*s
m
Mechanical energy

32. Force acting perpendicular to two surfaces in contact
Kinetics
Work
Normal reaction force
p = mv

33. Equation for Impulse
Uk
F
I = F * t
Types of friction

34. Equation for Strain enegy
SE = 1/2kx^2
Vector
Potential Energy
PE = mgh

35. Equation for Power
Force
m
Free Body Diagram
P = (F*s)/t

36. Symbol of inertia
i
Fs = Us * R
symbol for momentum
Fk = Uk * R

37. Equation of Power equals Strength times Speed
P = F * v
Scalar
Center of Gravity
Potential Energy

38. SI unit of Force
Newton (N)
Fk
Fs = Us * R
Forms of mechanical energy

39. Kinetic friction
Center of Gravity
I
m
Fk

40. The spring constant
KE = 1/2 mv^2
k
Scalar
Joule (J)

41. The energy a body possesses due to its movement
Kinetic Energy
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
Force
Torque

42. Static - Kinetic - and Rolling
Types of friction
Center of Gravity
Uk
Kinetic Energy

43. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Vector
Kinetics
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Force

44. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
Frictional Force
Fs = Us * R
I = F * t
Newton (N)

45. Equation for acceleration
a = F/m
F
Normal reaction force
Mechanical energy

46. Product of mass and linear velocity
Eccentric Force
Linear momentum
Strain Energy
Scalar

47. The rate of the mechanical work done by a force
Work
if an object is at rest or moving with a constant velocity then the forces on it must be...
P = F * (s/t)
Power

48. Symbol of mass
Newton (N)
Strain Energy
m
Normal reaction force

49. Equation for momentum
p = mv
Frictional Force
Kinetics
Newton (N)

50. Symbol for height above ground
Mass
P = (F*s)/t
Fk = Uk * R
h