cameroon gce A level 2024 electrical/electronics applied mechanics 1

cameroon gce A level 2024 electrical/electronics applied mechanics 1

cameroon gce A level 2024 electrical/electronics applied mechanics 1

An arrow shows the direction of a force.
The length of the arrow of a force vector represents
5.
the
A magnitude of tire force
B line support of the force
C direction of tire force
D application point of the force
formula IIFII=>*2 +Fy2 +Fz2
A Tales’ theorem
B Newton’s theorem
C Pythagorean theorem
D Kinetics theorem
2. Figure 1 below represents two vector forces having
the same magnitude and the same direction
From this statement
, the two vectors are. When you try to move something heavier than
you can push or pull it.
Name the Means of your pushing or pulling
action in mechanics.
A Moment
B Displacement
C Force
D Movement
6.
F
Figure 1
A Differents
B Opposites
C Equals
D Unknown
Questions 7 and 8 refer to figure 3 below which
represents a hand loosening a piece with a spanner.
Questions 3 and 4 refer to figure 2 below which
represents the graphical construction of three forces P,
Q and R. &

In mechanics the measure of the turning is
called
A Moment
B Displacement
C– Force
D Movement

Figure 2
Define R = P + Q
A Subtraction of two vectors
B Product of two vectors
C Commutative of two vectors
D Sum of two vectors
3.
8. T= F x d is the formulae of a torque following
the figure 3 above. Calculate T if F= 200N and
d= 2500mm.
A 500
,000Nm
B 50
,000Nm
C 5000 Nm
D 500Nm
Interpret the property P + Q = Q + P = R
A Associativity
B Product
C Commutativity
D Sum

Select the appropriate definition of a couple of
two forces noted F and –F.
A same magnitude, same line of action, and
opposite direction
same magnitude, parallel line of action,
and same direction
C same magnitude, parallel line of action,
and opposite direction
D Different magnitude, parallel line of
action, and opposite direction
B
Name the theorem which expresses that.
M = F x d = Fx x di+ Fy x d2
A Kinetics theorem
B Tales’ theorem
C Pythagorean theorem
D Varignon’s theorem
18.
11. Identify among the following attributes, the one
which does not have characteristic of a force is:
A Magnitude
B Direction
C Support
D Center of rotation
The figure 5 below presents three forces P, R
and —Qf which —R4 is the sum of the two other
forces. RewTite the moment Mo = R x d.

A 1 rad/s2
B 4 rad/s2
C 6 rad/s2
D 12 rad/s2

Power can be expressed as.
A work/time
B w‘ork/energy
C work x time
D work/distance

Describe the only condition when the moment
due to an applied force on a body is zero.
A The force is positive
B The force is negative
C The line of action of the force is a straight
14.
A M c– R x d– Q x q + P x p
B M o = R x d = Q x q – P x p
C M o = R x d ~ – Q x q– P x p
D M o = R x d = – Q x q + P x p
line
D The line of action of the force passes
through the Centre of rotation