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WorksheetsDKV31083 CH2: Equilibrium of a Particle
Total questions: 25
Worksheet time: 13mins
When a particle is in equilibrium, the sum of forces acting on it equals ------- . (Choose the most appropriate answer)
A constant
A positive number
Zero
A negative number
"A point at which entire weight of object concentrated toward the earth".
Identify the concept explained in the statement above.
Free body diagram
Concurrent forces
Centre of gravity
Rigid body
A particle is in equilibrium state when it is at _________ if originally at rest or has a constant __________ if originally in motion.
motion, acceleration
kinetic, veocity
rest, velocity
acceleration, kinetic
Below are the condition of equilibrium for particles except:
Total force x -axis = 0
Total force y - axis = 0
Resultant force = 0
Velocity = 0
Condition for equilibrium are:
- Resultant force = 0
- Moving with constant velocity
- Stationary/ rest
True
False
For a frictionless pulley and cable, tensions in the cable (T1 and T2) are related as
T1 > T2
T1 = T2
T1 < T2
What are the TWO equilibrium cases for forces acting on an object?
When the object is moving at a constant velocity
The object is speeding up
The object is at rest
The object is slowing down
What force is always present when an object is close to the earth's mass?
Applied Force
Normal Force
Frictional Force
Gravitational force
What forces are on a hot air balloon hovering in the air but being blown by the wind?
gravitational force, normal force and applied force
gravitational force, buoyant force and the force from the wind
gravitational force, normal force, applied force and frictional force
gravitational force, buoyant force and optimistic force
In physics, this may be described as the pulling force transmitted by the means of a string, cable, chain, or similar one-dimensional continuous object
Tension
Buoyancy
Friction
Normal Force
An object resting on a surface experiences +980 N of Normal force. What is the mass of the object?
W=mg
-98 kg
9.8 kg
100 kg
-100 kg
