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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. Symbol for acceleration
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
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
a
Work

2. Point around which a body's weight is equally balanced - no matter how the body is positioned.
Center of Gravity
I = F * t
if an object is at rest or moving with a constant velocity then the forces on it must be...
P = (F*s)/t

3. Resultant force derived from the composition of two or more forces
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
Net Force
k
m

4. Quantity of matter contained in an object
Linear momentum
KE = 1/2 mv^2
Mass
Joule (J)

5. Equation of Power equals Strength times Speed
P = F * v
s
Center of Gravity
Frictional Force

6. Symbol for gravity
Free Body Diagram
Fs = Us * R
g
Uk

7. Physical quantity that is completely described by its magnitude (mass - volume - length)
Us
Scalar
if an object is at rest or moving with a constant velocity then the forces on it must be...
Uk

8. Equation of Force
Kinetic Energy
F=ma
Inertia
SE = 1/2kx^2

9. Product of force X time over which the force acts
W
Impulse
Us
Types of friction

10. Coefficient of kinetic friction
concentric force
if an object is at rest or moving with a constant velocity then the forces on it must be...
Fs
Uk

11. The capacity to do mechanical work
T
KE = 1/2 mv^2
Mechanical energy
Inertia

12. Symbol of mass
SE = 1/2kx^2
m
Kinetic Friction
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

13. Equation of impulse
i = F*t
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
Joule (J)

14. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Forms of mechanical energy
Kinematics
m
P = (F*s)/t

15. Kinetic friction
Fs = Us * R
Vector
Fk
W

16. Kinetic energy (KE) and Potential Energy (PE)
a
Uk
Forms of mechanical energy
Vector

17. The rate of the mechanical work done by a force
Types of friction
Force
Power
a

18. Equation for Kinetic Energy
symbol for momentum
m
Torque
KE = 1/2 mv^2

19. The frictional force between two surfaces when there is no movement between the surfaces
Static Friction
P = F * (s/t)
Impulse
Mass

20. SI unit for impulse
Kinematics
N*s
Newton (N)
P

21. Newton's 3rd Law of Motion (law of reaction)
Force
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
Mechanical energy

22. Equation for momentum
Fk
p = mv
Mechanical energy
P

23. Newton's 1st Law of motion (law of inertia)
Fk = Uk * R
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Eccentric Force
KE = 1/2 mv^2

24. The frictional force between two surfaces when there is movement between the surfaces
P = (F*s)/t
Kinetic Friction
F
Forms of mechanical energy

25. zero OR balanced
if an object is at rest or moving with a constant velocity then the forces on it must be...
N*s
W = F * s
Us

26. Equation for kinetic friction
N*s
SE = 1/2kx^2
Fk = Uk * R
Fs

27. 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
Fs
Linear momentum
Work
k

28. The study of what causes motion (describes the forces that cause motion)
p = mv
Net Force
Us
Kinetics

29. Product of mass and linear velocity
Linear momentum
Frictional Force
P = F * (s/t)
Newton (N)

30. Coefficient of static friction
Us
concentric force
Types of friction
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

31. P
symbol for momentum
Frictional Force
T
PE = mgh

32. Potential energy due to an objects form
m
Strain Energy
p = mv
P

33. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Free Body Diagram
P = (F*s)/t
N*s
s

34. SI unit of Force
Newton (N)
concentric force
W = F * s
Types of friction

35. Equation for static friction
Fs = Us * R
Kinetic Friction
Strain Energy
Work

36. Rotary effect of a force
Eccentric Force
Us
Fk
Torque

37. SI unit for mechanical energy
Joule (J)
Work
k
Us

38. A force acting away from the CoG of a body induces translation AND rotation
Eccentric Force
Uk
Mass
Center of Gravity

39. The energy a body possesses due to its movement
Free Body Diagram
Inertia
Kinetic Energy
KE = 1/2 mv^2

40. Equation for Strain enegy
Uk
if an object is at rest or moving with a constant velocity then the forces on it must be...
Force
SE = 1/2kx^2

41. Symbol of inertia
i
PE = mgh
Fk = Uk * R
a = F/m

42. The energy due to the position that a body occupies relative to the earths surface
F
Potential Energy
Work
Mechanical energy

43. Rearrangement of equation for Power
Eccentric Force
Strain Energy
i
P = F * (s/t)

44. Symbol for torque
T
a = F/m
SE = 1/2kx^2
Fs = Us * R

45. Equation for Impulse
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
I = F * t
Strain Energy
p = mv

46. Newton's 2nd Law of Motion (law of acceleration)
Us
P = F * (s/t)
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
Strain Energy

47. 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
g
Impulse
Types of friction

48. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Net Force
Frictional Force
I = F * t
Vector

49. The spring constant
k
Kinematics
P = F * v
Uk

50. Equation for acceleration
a = F/m
P = (F*s)/t
Net Force
Linear momentum