9/18 Work and Power Catalyst

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

What is the unit for mass?

• Kilogram (Kg)
• Newton (N)
• Joule (J)
• Watt (W)

How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?

• 15 J
• 45 J
• 0 J
• 5 J