Work and Power Quiz

Anika, Hannah, and Aria are having a friendly competition to see who can push a box the farthest. What is the formula they should use to calculate the work done?

• work = force + distance

• work = force × distance

• work = force ÷ distance

• work = force - distance

During a science experiment, Daniel, Evelyn, and Maya apply a force of 20 N to move a heavy box a distance of 5 meters. What is the work done by them?

• 100 J

• 75 J

• 50 J

• 25 J

Scarlett, Abigail, and Aiden are playing a game of tug-of-war. If they all pull with equal force and no displacement occurs, how much work is done?

• -1

• 10

• 0

• 1

Sophia, Luna, and Nora are having a debate about the SI unit of work. Can you help them settle the argument?

• joule

• ampere

• newton

• watt

Isla, Avery, and Grace are having a friendly competition to see who can come up with the formula to calculate power the fastest. Can you help them out? What is the formula to calculate power?

• P = F/d

• P = mgh

• P = W/t

• P = V/I

Anika, Aiden, and Mia are having a friendly competition to see who can guess the power of a machine. The machine does 500 J of work in 10 seconds. Can you help them figure out the power of the machine?

• 100 W

• 250 W

• 1000 W

• 50 W

Scarlett, Liam, and Anika are having a debate. Scarlett thinks the SI unit of power is ampere, Liam believes it's watt, and Anika argues it's ohm. Who is correct?

• Scarlett (ampere)

• Liam (watt)

• Anika (ohm)

• None of them

Tags

NGSS.HS-PS2-5

Lily, Nora, and Arjun are having a heated debate in their physics class. They are trying to figure out the relationship between work and change in kinetic energy according to the work-energy theorem. Can you help them settle this debate?

• Work is equal to the change in kinetic energy.

• Work is equal to the potential energy.

• Work is equal to the initial kinetic energy.

• Work is equal to the final kinetic energy.

Imagine Grace, Evelyn, and Kai are having a friendly debate about physics. They're discussing a scenario where the work done on an object is zero. What can you say about its change in kinetic energy in this case?

• Grace argues that the change in kinetic energy is negative.

• Evelyn believes that the change in kinetic energy is zero.

• Kai thinks that the change in kinetic energy is positive.

• Or, is the change in kinetic energy unknown?

Imagine this! William and Michael are at a car race. They see a car with a mass of 1000 kg accelerating from rest to a speed of 20 m/s. Ava, who is a physics enthusiast, calculates the work done on the car to be 5000 J. Can you help them figure out the change in the car's kinetic energy?

• 5000 J

• 3000 J

• 2000 J

• 1000 J

Tags

NGSS.HS-PS3-1