8th Science - Work and Power Problems

(Harper) Maverick was moving the sofa with 5254 joules of work, traveling a distance of 4 meters. What is force?

• 1400 newtons
• 1313.5 newtons
• 21016 newtons
• 1263.5 newtons

(Brenna) Lyn was moving the fridge with a force of 539N and work of 2376J. What is the distance she moved the fridge? Round to the nearest tenth.

• 4.41m
• 128
• 3.67
• 5.80

(Aubyn) Kane was running with a force of 55N and worked 198J. What is the distance did Kane ran?

• 4.2m
• 3.6m
• 10m
• 3.2m

(Adalyn) Sally pushed the chair with 437 joules of force for 6 meters. What is the force?

• 70.6 newtons
• 72.8 newtons
• 2,622 newtons
• 2,540 newtons

(Paige) The Mailman pushed a box with a force of 57N. He pushed the box a distance of 28.3 meters, all the way to David's porch. How much work did the Mailman do?

• 1643.3
• 1613.1
• 1596

(Christy)Brenna ran 30m down the court with the force of 150N. How much work did she do?

• 3450
• 6700
• 4500
• 3245

(Natalie) Marco has a fridge. He wants to move the fridge by the oven. Marco moves the fridge with 325 joules in 25s. How much power does he use?

• 15
• 13
• 29
• 25

(Ember Lee) A kid is moving a box of bricks using 9726 Joules worth of work and 622 watts of power. How much time will it take (in seconds).

• 6,049,572
• 15.363
• 15.636
• 6,050,573

(Yaretzy) Willie ran to the grocery store from his house with 1,200 joules of work and a time of 500 seconds. How much power did Willie use to get to the grocery store?

• 1.4 power
• 3.8 power
• 2.4 power
• 3.4 power

(Lorena) Billy escapes school and runs from Copeland to Montezuma. It took him 1382400J of work and 32W of power. How many hours does it take him to reach Copeland? Convert seconds to hours.

• 12288hrs
• 12hrs
• 8hrs
• 10hrs