WorksheetsStatics
Total questions: 25
Worksheet time: 25mins
As a student runs a plastic comb through her hair, the comb acquires a negative electric charge. This charge results from the transfer of
protons from the comb to her hair
protons from her hair to the comb
electrons from the comb to her hair
electrons from her hair to the comb
The diagram below shows the electric field in the vicinity of two charged conducting spheres, A and B. What is the static electric charge on each of the conducting spheres?
A is positive and B is negative.
Both A and B are positive.
Both A and B are negative.
A is negative and B is positive
When a particle is in equilibrium, the sum of forces acting is equal to
external forces
internal forces
zero
moment
Draw the Free-body diagram of the particle A shown in the Figure
Draw the FBD for the particle C as shown in the Figure
Determine the tension developed in wires CA and CB required for equilibrium of the 10-kg cylinder. Take angle θ = 40°
FCA = 80.0 kN
FCB = 90400 N
FCA = 80.0 N
FCB = 90400 N
FCA = 80.0 N
FCB = 90.4 N
FCA = 80.0 kN
FCB = 90.40 N
Balanced or unbalanced?
balanced
unbalanced
Name the missing force...
weight force
normal force
applied force
frictional force
Name the missing force...
frictional force
weight force
thrust
buoyant force
Name the missing force...
push
weight force
tension force
drag
Name the missing force...
tension force
gravitational force
normal force
applied force
The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
normal
abnormal
static
inertia
In a force diagram the size/length of the arrow tells you this about the force:
the strength of the force
the distance of the force
the direction of the force
This diagram can be used to indicate which of the following? (TWO correct answers)
a object at rest
an object moving at a constant velocity (speed)
an object accelerating
(Trick question -- there is only one correct answer)
an object decelerating
What is the condition for a body to be in static equilibrium?
The net force acting on the body is zero
The net torque acting on the body is zero
Both net force and net torque acting on the body are zero
The body is at rest
Which of the following is an example of a static force?
Gravitational force
Frictional force
Tension in a stationary rope
Magnetic force
In statics, what does the term 'moment' refer to?
The tendency of a force to rotate an object about an axis
The speed of an object in motion
The mass of an object
The energy stored in an object
What is the principle of transmissibility in statics?
Forces can be moved along their line of action without changing the external effect on a rigid body
Forces can be added together to form a resultant force
Forces can be transmitted through a medium without loss
Forces can be converted into energy
Which of the following is a scalar quantity in statics?
Force
Torque
Mass
Displacement
What is the role of a free-body diagram in statics?
To calculate the velocity of an object
To represent all the forces acting on a body
To measure the temperature of a body
To determine the color of a body
In a beam supported at both ends, where is the maximum bending moment likely to occur?
At the supports
At the midpoint
At one quarter of the length
At three quarters of the length
What is the unit of force in the International System of Units (SI)?
Newton
Joule
Watt
Pascal
Which of the following conditions must be satisfied for a structure to be statically determinate?
The number of unknown forces equals the number of equilibrium equations
The structure is symmetrical
The structure is made of steel
The structure is in motion
What is the effect of a couple on a rigid body in statics?
It produces translational motion
It produces rotational motion
It has no effect
It changes the mass of the body
In statics, what is the significance of the centroid of a body?
It is the point where the entire weight of the body acts
It is the point where the body is in motion
It is the point where the body has maximum velocity
It is the point where the body has maximum temperature
