Chapter 11: Energy

Which of these are actual forms of energy?

• Nuclear

• Theoretical

• Eccentric

• Thermal

• Electric

Which of these components are a part of the work equation?

• W for work

• F for force

• d for distance

• m for mass

• g for gravity

Gordon is moving a crate across the floor. He applies 2,500 N of force across a distance of 15 meters. How much work is Gordon doing?

• 37,500 J

• 281,250 J

• 208.3 J

• 35,000 J

Domonkos is strength training by dragging a tire across the ground. His trainer reports that, on average, Domonkos drags the tire a distance of 30 meters. If Domonkos is known to do 50,000 J of work, how much force is he exerting on average?

• 1,666.7 N

• 1,500,000 N

• 2,333.3 N

• 75,000 N

Mike punches a sandbag with a force of 6,316 N. In doing so, he does 9,474 J of work. How far did the sandbag travel?

• 1 m

• 1.25 m

• 1.5 m

• 1.75 m

• 2 m

Which of these components are a part of the kinetic energy equation?

• K for kinetic energy

• m for mass

• v for velocity

• g for gravity

• F for force

Don is jogging at a speed of 3 m/s. If he has a mass of 70 kg, how much kinetic energy does Don have?

• 315 N

• 210 N

• 23.3 N

• 105 N

A tank moves at 12 m/s and has 43,200,000 J of kinetic energy. What is the tank's mass?

• 600,000 N

• 1,600,000 N

• 2,600,000 N

• 3,600,000 N

A jet plane with a mass of 9,400 kg is flying across the country. It has 282,117,500 N of kinetic energy. How fast is the plane moving?

• 245 m/s

• 2,450 m/s

• 24,500 m/s

• 245,000 m/s

Which of these components are a part of the gravitational potential energy equation?

• U_g as gravitational potential energy

• m as mass

• g as gravity

• h as height

• v as velocity