Worksheets9/18 Work and Power Catalyst
Total questions: 13
Worksheet time: 8mins
What is the formula to calculate work done?
work done = velocity × time
work done = force × distance
work done = power × time
work done = mass × acceleration
A force of 50 N is applied to move an object a distance of 10 meters. What is the work done?
50 Joules
100 Joules
250 Joules
500 Joules
What is the SI unit of work?
watt (W)
newton (N)
ampere (A)
joule (J)
A person pushes a box with a force of 100 N and the box moves a distance of 5 meters. What is the work done?
500 J
250 J
100 J
50 J
What is the formula to calculate power?
P = F/d
P = mgh
P = W/t
P = V/I
A machine does 2000 J of work in 10 seconds. What is the power of the machine?
100 J/s
500 J/s
1000 J/s
200 J/s
What is the SI unit of power?
ohm
ampere
volt
watt
A car engine produces 150 horsepower. What is the power output of the engine in watts?
111855
1500
500
10000
If a force of 100 newtons was exerted on an object and no work was done, the object must have —
accelerated rapidly
remained motionless
decreased its velocity
gained momentum
