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Mechanical Analysis

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Impulse
W = F * s
h
Vector

2. Product of force X time over which the force acts
Strain Energy
Impulse
a = F/m
Potential Energy

3. Coefficient of kinetic friction
Work
Force
Eccentric Force
Uk

4. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Torque
KE = 1/2 mv^2
Fk
Free Body Diagram

5. SI unit for mechanical energy
Static Friction
Newton (N)
Kinetic Friction
Joule (J)

6. Point around which a body's weight is equally balanced - no matter how the body is positioned.
Center of Gravity
Linear momentum
Mechanical energy
h

7. Symbol for torque
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
Mass
Linear momentum
T

8. Newton's 3rd Law of Motion (law of reaction)
Potential 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
if an object is at rest or moving with a constant velocity then the forces on it must be...
Vector

9. Static - Kinetic - and Rolling
SE = 1/2kx^2
Frictional Force
P = F * v
Types of friction

10. Static friction
T
Frictional Force
Fs
N*s

11. Kinetic friction
W = F * s
Uk
Work
Fk

12. Equation for work
Potential Energy
P = F * (s/t)
Mass
W = F * s

13. Equation for Power
P = (F*s)/t
p = mv
Mass
Kinetic Energy

14. Equation for Impulse
F=ma
I = F * t
Impulse
s

15. Symbol of Impulse
I
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
Power
Fs = Us * R

16. A force acting through the CoG of a body induces translation
Fs
Free Body Diagram
Potential Energy
concentric force

17. Rotary effect of a force
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
N*s
Vector
Torque

18. Newton's 1st Law of motion (law of inertia)
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
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
if an object is at rest or moving with a constant velocity then the forces on it must be...
Static Friction

19. Symbol for acceleration
a
W
PE = mgh
Net Force

20. Newton's 2nd Law of Motion (law of acceleration)
Power
g
Fk = Uk * R
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

21. P
Fk = Uk * R
symbol for momentum
Potential Energy
a = F/m

22. Physical quantity that is completely described by its magnitude (mass - volume - length)
Scalar
Power
I = F * t
P = F * v

23. Product of mass and linear velocity
F
Work
Linear momentum
Fs = Us * R

24. Equation of Force
Mechanical energy
F=ma
Linear 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

25. Equation for static friction
KE = 1/2 mv^2
h
Fs = Us * R
P = F * v

26. Symbol for gravity
g
k
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
P = F * v

27. zero OR balanced
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
Mechanical energy
N*s
if an object is at rest or moving with a constant velocity then the forces on it must be...

28. Equation for acceleration
Kinetics
concentric force
a = F/m
i

29. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Normal reaction force
Kinetic Friction
Force
p = mv

30. SI unit for impulse
Kinematics
F=ma
Mass
N*s

31. Tendency of a body to resist a change in its state of motion
Linear momentum
Free Body Diagram
Kinetics
Inertia

32. Potential energy due to an objects form
Linear momentum
Us
Strain Energy
Frictional Force

33. Equation for momentum
W
symbol for momentum
p = mv
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

34. Force acting perpendicular to two surfaces in contact
P = (F*s)/t
Kinematics
F
Normal reaction force

35. Rearrangement of equation for Power
Scalar
P = (F*s)/t
P = F * (s/t)
N*s

36. Equation for Kinetic Energy
p = mv
k
Vector
KE = 1/2 mv^2

37. Symbol for height above ground
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
h
Types of friction
I = F * t

38. Kinetic energy (KE) and Potential Energy (PE)
Forms of mechanical energy
Types of friction
Impulse
Force

39. Quantity of matter contained in an object
Torque
s
Work
Mass

40. Symbol of Force
F
Work
Net Force
Fk = Uk * R

41. Equation for kinetic friction
Fs = Us * R
Fk = Uk * R
Normal reaction force
SE = 1/2kx^2

42. The energy a body possesses due to its movement
Kinetic Energy
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
P = F * (s/t)
I

43. The spring constant
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
SE = 1/2kx^2
k
Types of friction

44. Symbol of mass
m
Fs = Us * R
Inertia
s

45. The frictional force between two surfaces when there is movement between the surfaces
Kinetic Friction
Frictional Force
Power
Fs = Us * R

46. The energy due to the position that a body occupies relative to the earths surface
I
Potential Energy
Vector
P

47. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
i
p = mv
Frictional Force
Normal reaction force

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

49. Symbol for power - measured in Watts (W)
Us
symbol for momentum
T
P

50. 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
Work
Scalar
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
Free Body Diagram