Forms of Energy Pr Quiz

How are Sound Energy and Thermal Energy similar?

• They both involved vibrating molecules.

• They are both forms of Potential Energy.

• They both release light.

• They are both forms of Chemical Energy.

Answer explanation

Sound Energy and Thermal Energy are similar because they both involve vibrating molecules. In sound, vibrations create waves, while in thermal energy, molecular vibrations contribute to temperature.

How do dams generate electricity?

• By capturing thermal energy from boiling water.

• By pressurizing water to become vapor.

• By transforming water to steam.

• By harnessing mechanical energy from moving water.

Answer explanation

Dams generate electricity by harnessing mechanical energy from moving water. As water flows through turbines, it spins them, converting the kinetic energy of the water into electrical energy.

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NGSS.MS-PS3-5

How are Potential Energy and Kinetic Energy different?

• Potential Energy is based on its chemical properties; Kinetic Energy is based on Nuclear energy.

• Potential Energy is based on position; Kinetic Energy is based on movement.

• Potential Energy is about movement; Kinetic Energy is about electricity.

• Potential Energy is like a soaring bird; Kinetic Energy is like a battery.

Answer explanation

Potential Energy is energy stored due to an object's position, while Kinetic Energy is the energy of an object in motion. This distinction highlights how they are fundamentally different in nature.

When a  ball bounces, why does it never reach the same height from which it is dropped?

• The ball is too heavy.

• The ball is too light.

• Some of the energy is converted to heat and sound.

• The ball has dead batteries inside.

Answer explanation

When a ball bounces, some of its energy is converted to heat and sound, which means it loses energy and cannot reach the same height from which it was dropped. This explains why it bounces lower each time.

Tags

NGSS.MS-PS3-5

When a marble collides with another marble, why does it slow down?

• The energy becomes electrical energy.

• The marble gains height and loses height.

• The energy becomes nuclear power.

• Some of the energy from that marble gets transferred to another marble.

Answer explanation

When a marble collides with another marble, some of its kinetic energy is transferred to the other marble, causing it to slow down. This energy transfer is why the first marble loses speed.

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One form of (a)   energy is chemical energy, which can be stored in plants, human bodies or even batteries.

• Potential

• Kinetic

• Electrical

• Nuclear

Answer explanation

Chemical energy is a form of potential energy stored in substances like plants and batteries. It represents energy that can be released during a chemical reaction, distinguishing it from kinetic energy, which is energy of motion.

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Which form of energy does a stretched rubber band represent?

• Kinetic

• Electrical

• Nuclear

• Potential

Answer explanation

Chemical energy is a form of potential energy stored in substances like plants and batteries. It represents energy that can be released during a chemical reaction, distinguishing it from kinetic energy, which is energy of motion.

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