Energy Types and Law of Conservation of Energy

When a construction worker hits a hammer into plank of wood, the mechanical energy from the hit becomes _____ energy

• radiant

• electical

• heat and sound

• chemical

Tags

NGSS.MS-PS3-5

Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into

• electrical energy.

• mechanical motion.

• heat and light energy.

• electrical and heat energy.

Tags

NGSS.MS-PS3-5

The light bulb converts electrical energy into light and _________.

• chemical

• electromagnetic

• heat

• nuclear

Tags

NGSS.MS-PS3-5

Which of the following statements most accurately describes how a ipod is able to play music after it has been plugged in?

• The ipod is able to play music because it is using up the electrical energy from the wall.

• The electrical energy is transferred from the wall allowing the ipod to make sound energy as music.

• The ipod is able to play music because the outlet is creating electrical energy that is transformed to sound energy.

• The electrical energy from the outlet is transformed to chemical energy and then to sound and light energy when the ipod is used to play music.

Tags

NGSS.MS-PS3-5

People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?

• mechanical to thermal to electrical

• chemical to mechanical to thermal

• mechanical to chemical to sound

• chemical to sound to electrical

In energy transformations, "wasted energy" usually takes what form?

• heat

• chemical energy

• light

• sound waves

Which list best describes the energy of the ball on the pendulum in each diagram?

• 1. all kinetic energy

  2. kinetic energy transferring to potential energy

  3. potential energy transferring to kinetic energy

• 1. all potential energy

  2. potential energy transferring to kinetic energy

  3. kinetic energy transferring to potential energy

• 1. all potential energy

  2. kinetic energy transferring to potential energy

  3. potential energy transferring to kinetic energy

• 1. all kinetic energy

  2. potential energy transferring to kinetic energ

  3. kinetic energy transferring to potential energy

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy is found in many different forms, but it can be classified into two distinct categories: kinetic energy and ____________________ energy.

• Electrical

• Potential

• Radiant

• Thermal

Tags

NGSS.MS-PS3-2

What type of energy is stored in the bonds of food and is released when it is broken down in your digestive system?

• Kinetic

• Radiant

• Chemical

• Thermal

Tags

NGSS.MS-LS1-7

When a firecracker explodes, stored chemical energy turns into sound and light energy. What other type of energy is released?

• Electrical

• Potential

• Radiant

• Thermal