#1
Which of the following best defines mechanical work?
The application of force through a distance
The amount of energy transferred by a force
The resistance to motion of an object
The ability of an object to do work
#2
What is the SI unit of power?
#3
Which of the following is a unit of work?
Volt
Newton-meter
Ampere
Watt
#4
What does the term 'horsepower' represent in the context of power?
The power required to lift a horse vertically
The power of a horse running at full speed
A unit of power equal to 746 watts
The power generated by a horse pulling a cart
#5
Which of the following is a measure of work?
Force
Energy
Velocity
Density
#6
What is the formula for mechanical work?
Work = Force × Distance
Work = Mass × Velocity
Work = Energy × Time
Work = Power ÷ Time
#7
Which law of motion is directly associated with mechanical work?
Newton's First Law
Newton's Second Law
Newton's Third Law
None of the above
#8
In the context of work and power, what does 'efficiency' refer to?
The amount of work done in a given time
The ratio of output power to input power
The measure of force exerted on an object
The ability of a machine to lift heavy objects
#9
Which type of machine lever has the effort and load on opposite sides of the fulcrum?
First-class lever
Second-class lever
Third-class lever
None of the above
#10
What principle does a pulley system operate on?
Leverage
Friction
Inertia
Mechanical advantage
#11
Which law of thermodynamics is closely related to the concept of mechanical work?
Zeroth Law
First Law
Second Law
Third Law
#12
What is the unit of measurement for mechanical advantage?
#13
What is the formula to calculate power?
Power = Force × Time
Power = Work ÷ Time
Power = Distance ÷ Time
Power = Mass × Acceleration
#14
In the context of machines, what is meant by the term 'mechanical advantage'?
The efficiency of a machine
The ratio of output force to input force
The ability of a machine to produce work
The power output of a machine
#15
Which of the following best describes the concept of power?
The ability to do work
The rate at which work is done
The amount of force exerted
The distance covered in a given time
#16
What is the power output of a machine that does 2000 Joules of work in 10 seconds?
#17
What is the formula for calculating mechanical advantage?
Mechanical Advantage = Load ÷ Effort
Mechanical Advantage = Effort ÷ Load
Mechanical Advantage = Load - Effort
Mechanical Advantage = Load × Effort