Elastic Energy Quiz

Evelyn and Noah are playing with a spring toy. They noticed that the toy behaves differently when they perform certain actions on it. What are the two types of elastic potential energy they are observing?

• Twisting and bending

• Stretching and compressing

• Expanding and contracting

• Pulling and pushing

Grace, Harper, and Hannah are discussing energy during their physics class. Grace says that when she is at the top of a hill on her bike, she has potential energy, and when she is riding down the hill, she has kinetic energy. Harper says that potential energy and kinetic energy are the same thing. Hannah says that when she is riding her bike, she has potential energy, and when she is at rest, she has kinetic energy. Who is correct?

• Grace is correct. Potential energy is stored energy, while kinetic energy is the energy of motion.

• Harper is correct. Potential energy and kinetic energy are the same thing.

• Hannah is correct. Potential energy is the energy of motion, while kinetic energy is stored energy.

• None of them are correct. Potential energy is only found in living organisms, while kinetic energy is found in non-living objects.

Arjun and Rohan are playing with different objects. Arjun has a steel ball, Rohan has a plastic bottle, Isla has a wooden stick, and they found a rubber band on the ground. Which object among these has elastic potential energy?

• Steel ball

• Plastic bottle

• Wooden stick

• Rubber band

William is studying the concept of potential energy. He is trying to understand how gravitational potential energy is related to the elastic potential energy of a rubber band that Hannah is stretching. Can you help him understand this?

• Both are forms of potential energy

• Gravitational potential energy is always positive, while elastic potential energy can be negative

• When Hannah releases the rubber band, the gravitational potential energy is converted into kinetic energy, while the elastic potential energy of the rubber band is not

• Gravitational potential energy is only present in objects with mass, like the apple William is holding, while elastic potential energy is only present in objects with elasticity, like the rubber band Hannah is stretching

Charlotte is conducting an experiment with a spring. She wants to understand how the spring constant affects the elastic potential energy stored in the spring. Can you help her understand this?

• The spring constant has no effect on the elastic potential energy stored in the spring.

• The spring constant only affects the temperature of the spring, not the elastic potential energy.

• The spring constant directly affects the elastic potential energy stored in the spring.

• The spring constant affects the color of the spring, not the elastic potential energy.

Liam, Abigail, and Luna are participating in a science experiment using rubber bands. They are trying to understand what factors affect the amount of elastic potential energy stored in the rubber bands they are using. Can you help them figure out what these factors might be?

• Density, volume, and shape of the rubber bands

• Tension, compression, and friction applied to the rubber bands

• Color, width, and temperature of the rubber bands

• Material of the rubber bands, length, and amount of stretch

Oliver, Evelyn, and Lily are experimenting with a spring in their physics class. They are trying to understand Hooke's Law and its relationship to elastic potential energy in springs. Can you explain it to them?

• Hooke's Law describes the relationship between the force Oliver applies to a spring and the resulting displacement, while the elastic potential energy in springs is the energy stored in the spring when Evelyn stretches or compresses it.

• Elastic potential energy in springs is the energy stored in a spring when Lily twists or bends it.

• Hooke's Law describes the relationship between the force Oliver applies to a spring and the resulting color change.

• Hooke's Law is about the relationship between the force Evelyn applies to a spring and the resulting temperature change.

Rohan and James are playing with a rubber band. Maya observes that when they stretch the rubber band further, what happens to the elastic potential energy in it?

• Remains the same

• Becomes kinetic energy

• Decreases

• Increases

Avery, Grace, and Maya are playing with a rubber band. They stretch it and then let it go. Describe the process of how the elastic potential energy in the rubber band they are playing with is converted into kinetic energy.

• The potential energy is converted into kinetic energy as the rubber band snaps back to its original shape.

• The potential energy is converted into kinetic energy as the rubber band is compressed

• The potential energy is converted into kinetic energy as the rubber band remains stationary

• The potential energy is converted into kinetic energy as the rubber band stretches further

Avery, Hannah, and Aria are comparing a spring from a mechanical pencil and a rubber band from their stationery. They are curious about the similarities and differences in the way these items store elastic potential energy. Can you help them understand?

• Both the spring and the rubber band store potential energy when stretched or compressed, follow Hooke's law, but the spring in the mechanical pencil is made of metal with a higher elastic modulus, while the rubber band is made of rubber with a lower elastic modulus.

• The spring in the mechanical pencil has a lower elastic modulus than the rubber band.

• Both the spring and the rubber band follow Newton's law.

• Both the spring and the rubber band are made of metal.