Elastic potential energy F

What type of energy is stored in a fully extended bungee cord?

• Gravitational potential energy

• Kinetic energy

• Elastic potential energy

• Chemical energy

What type of energy is stored in a bungee cord before the person has begun to jump?

• Gravitational potential energy

• Kinetic energy

• Elastic potential energy

• Chemical energy

What type of energy is stored in a bungee cord as the person is falling but the bungee cord has NOT begun to stretch yet.

• Gravitational potential energy

• Kinetic energy

• Elastic potential energy

• Chemical energy

During a bungee jump the person does not bounce as high as the position they started. Why not?

• They are too heavy

• They weren't smiling enough

• Energy is lost to the surroundings as heat

• Chemical energy cannot be used to bounce any higher

Calculate the amount of elastic potential energy stored in a spring which has a spring constant of 100 N/m and is stretched 0.5m.

• 25 J

• 50 J

• 10 J

• 12.5 J

A spring is stretched from 1m to 6m. It has a spring constant of 2000 N/m. Calculate the elastic potential energy stored in the spring.

• 25,000 J

• 1,000 J

• 36,000 J

• 49,000 J

Calculate the elastic potential energy stored in an elastic band which is stretched 50cm and has a spring constant of 200 N/m.

• 250,000 J

• 25 J

• 25, 000 J

• 2,500 J

A student takes an elastic band and extends it on their fingers. It stored 20 J of elastic potential energy. They release it so it flies across the room. If all the elastic potential energy is transferred to kinetic energy, how much kinetic energy would the elastic band have?

• 10 J

• 5 J

• 200 J

• 20 J