Work, Energy, and Power Challenge

What is the work done if a force of 10 N moves an object 5 m?

• 40 J

• 30 J

• 25 J

• 50 J

Calculate the kinetic energy of a 2 kg object moving at 3 m/s.

• 6 Joules

• 12 Joules

• 9 Joules

• 3 Joules

If a 5 kg object is lifted to a height of 10 m, what is its potential energy?

• 490.5 J

• 2450 J

• 50 J

• 1000 J

How much power is used if 100 J of work is done in 5 seconds?

• 20 W

• 15 W

• 25 W

• 50 W

Convert 1 Joule to Newton-meters.

• 1 Joule = 2 Newton-meters

• 1 Joule = 10 Newton-meters

• 1 Joule = 1 Newton-meter

• 1 Joule = 0.5 Newton-meters

If a car does 2000 J of work in 10 seconds, what is its power output?

• 300 W

• 150 W

• 250 W

• 200 W

What is the formula for calculating work?

• Work = Force - Distance

• Work = Force × Distance × cos(θ)

• Work = Force / Distance

• Work = Force + Distance

If an object has a potential energy of 50 J and is dropped, what will be its kinetic energy just before it hits the ground?

• 50 J

• 25 J

• 75 J

• 0 J

What unit is used to measure power?

• ohm

• joule

• watt

• volt

If a machine has a power rating of 1500 W, how much work can it do in 1 minute?

• 30000 J

• 90000 J

• 60000 J

• 120000 J