Exploring Elastic Potential Energy Concepts

What is the symbol for elastic potential energy that the narrator prefers?

• Capital U with a subscript of e

• Lowercase pe with a subscript of e

• Capital PE with a subscript of e

• Lowercase u with a subscript of e

What is the most common example of an object storing elastic potential energy?

• Rubber ball

• Spring

• Toy

• Rubber band

When a rubber ball strikes the ground and compresses, what type of energy is stored?

• Thermal energy

• Gravitational potential energy

• Elastic potential energy

• Kinetic energy

What is the equation for elastic potential energy?

• PE = 1/2 kx

• PE = kx^2

• PE = 1/2 kx^2

• PE = kx

What does the spring constant (k) measure?

• The force required to displace the spring per meter

• The length of the spring

• The speed of the spring

• The mass of the spring

Tags

NGSS.MS-PS3-2

Which spring has a larger spring constant?

• A Slinky

• A rubber band

• A weak spring with 65 N/m

• A strong spring with 3,300 N/m

What is the spring constant of the rubber band used in the example?

• 500 N/m

• 241 N/m

• 3,300 N/m

• 65 N/m

How much elastic potential energy is stored in the rubber band when elongated by 0.12 meters?

• 1.7 Joules

• 2.4 Joules

• 3.3 Joules

• 0.8 Joules

Tags

NGSS.MS-PS3-2

Can elastic potential energy be negative?

• No, because energy cannot be negative

• Yes, if the spring constant is negative

• Yes, if the displacement is negative

• No, because displacement is squared

What type of quantity is elastic potential energy?

• Matrix

• Vector

• Scalar

• Tensor

Tags

NGSS.MS-PS3-2