Power in Physics

Henry, Priya, and Sophia are working on a science project and need to measure the power of their device. What is the standard unit for power?

• Ampere

• Newton

• Joule

• Watt

James, Mia, and Avery are participating in a school activity. Will they use more power running up the stairs or walking up the stairs?

• Running up the stairs

• Walking up the stairs

• The same in both

Elijah is trying to lift a heavy box. Power is a measure of how much ______ Elijah can do in a set amount of ______.

• Work, Time

• Work, Energy

• Energy, Force

• Force, Work

Arjun is working on a physics project and needs to measure the energy of an object. Which SI Unit should he use for measuring energy?

• Joule

• Newton

• Calorie

• Watt

Mia is comparing different appliances in her home and wants to know their power consumption. What is the SI Unit for Power that she should look for?

• Newton (N)

• Joule (J)

• Second (s)

• Watt (W)

Charlotte lifts a 50 kg box to a height of 1 meter in 25 seconds. How much power does she use to lift the box? (Given: Work done (W) = 500 Joules)

• 0.05 W

• 20 W

• 12500 W

• 2000 W

Tags

NGSS.HS-PS3-2

Olivia is driving a tractor on her farm and uses it to drag a plow with a force of 500 N a distance of 10 meters in 20 seconds. How much power is the tractor using?

• 250 Watts

• 250 Joules

• 100,000 Watts

• 100,000 Joules

Abigail is working on a science project where she needs to power a small light bulb. If she manages to produce 68 W of power in 18 seconds, how much work has she done for her project?

• 1,224 J

• 0.264 J

• 3.77 J

• 12.24 J

Lily was helping Priya in her physics experiment. They found that 68 Joules of energy were necessary to move a 4 Newton crate, in 6 seconds. Hannah, who was observing them, wondered how far the crate was moved. Can you help Hannah find out?

• 272 m

• 17 m

• 4.05 m

• 272 cm

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

During a school trip to a local power plant, James, Mia, and Oliver observe their friend Jerome demonstrating his strength. Jerome, weighing 102 kg, runs up a flight of stairs that is 2.29 meters high in just 1.32 seconds, maintaining a constant speed. They are asked to calculate the power generated by Jerome during this activity.

• 1.77 x 10³ W

• 1.48 x 10³ W

• 1.91 x 10³ W

• 1.27 x 10³ W