#1
If a force of 50 Newtons is applied to move an object a distance of 5 meters, what is the work done?
10 Newtons
250 Joules
5 Joules
55 Watts
#2
A machine does 1000 Joules of work in 10 seconds. What is the power of the machine?
100 Watts
10 Watts
100 Joules
1000 Watts
#3
Which of the following units is used to measure work in the International System of Units (SI)?
#4
Which of the following statements correctly describes power?
The amount of work done over a given time period
The ability of an object to do work
The rate at which work is done or energy is transferred
The total energy of an object
#5
What is the unit of power in the International System of Units (SI)?
#6
What is the formula for calculating work done?
Work = Force × Distance
Work = Force / Distance
Work = Force + Distance
Work = Force - Distance
#7
Which of the following statements accurately describes power?
Power is the total energy stored in an object
Power is the rate at which work is done or energy is transferred
Power is the ability of an object to do work
Power is the force applied to an object
#8
Which of the following is a correct definition of work in physics?
The movement of an object in the same direction as the force being applied
The exertion of force over a distance resulting in displacement
The exertion of force over a distance regardless of displacement
The exertion of force without any displacement
#9
Which of the following formulas correctly represents the calculation of power?
Power = Work / Time
Power = Work * Time
Power = Force / Time
Power = Force * Time
#10
A force of 20 Newtons is applied to lift a box weighing 100 kilograms. If the box is lifted a distance of 5 meters, what is the work done?
20 Joules
100 Joules
5000 Joules
10,000 Joules
#11
What happens to the power required if the time taken to do a certain amount of work is increased?
Power increases
Power decreases
Power remains the same
Power becomes zero
#12
In which of the following situations is work done by a force?
Holding a book above the ground
Pushing against a wall that does not move
Catching a ball thrown at you
Lifting a box from the floor to a shelf
#13
What is the work done if a force of 30 N is applied to move an object a distance of 8 meters horizontally?
#14
If a car engine exerts a force of 5000 N to travel at a constant speed of 20 m/s, what is the power output of the engine?
2500 W
10,000 W
100,000 W
500 W
#15
Which of the following statements is true regarding power and work?
Power and work are directly proportional
Power and work are inversely proportional
Power and work are unrelated
Power is the same as work
#16
Which of the following scenarios represents the highest power output?
Lifting a 10 kg object to a height of 2 meters in 5 seconds
Lifting a 5 kg object to a height of 3 meters in 10 seconds
Lifting a 15 kg object to a height of 1 meter in 3 seconds
Lifting a 20 kg object to a height of 4 meters in 8 seconds