Energy Transformations

Which energy conversion is taking place when you put gasoline in a car?

• thermal -> electrical
• mechanical -> electrical
• chemical -> mechanical
• mechanical -> electromagnetic

Tags

NGSS.MS-PS3-4

Electrical Energy is transferred to _____ Energy.

• Thermal
• Solar
• Electrical
• None

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A battery converts what type of energy to another?

• sound to kinetic
• light to heat
• mechanical to electrical
• chemical to electrical

Tags

NGSS.HS-PS3-3

The roller coaster cart has the most gravitational potential energy at position-

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-2

A student listens to music with a digital music player, similar to the one shown below. Which best describes the energy transformations that take place in the music player?

• Mechanical to chemical to electrical
• Chemical to sound to electrical
• Chemical to electrical to sound
• Electrical to heat to sound

Solar Energy is transferred to _____ Energy.

• Mechanical
• Solar
• Sound
• Electrical

Tags

NGSS.MS-PS3-5

When you eat pizza, Chemical Energy is transferred to _____ Energy.

• Solar
• Electrical
• Mechanical
• Chemical

Tags

NGSS.MS-LS1-7

Mike ate a bowl of soup for lunch. Then, he played a game of basketball with his friends. During the game, Mike became hot and started to sweat.

Which three statements provide evidence of conservation of energy in this scenario?

• Chemical energy in the soup transformed to mechanical energy used to play basketball

• Chemical energy in the soup transformed to thermal energy that increased his body temperature.

• The mechanical energy of his legs was created by the collision of his feet with the ground.

• Thermal energy of his body caused the kinetic energy of surrounding air particles to increase.

Tags

NGSS.MS-PS3-4

The pendulum in a clock gradually slows down and stops moving after a while. A student states that its loss of mechanical energy is evidence that energy is not always conserved.

• Friction between its moving parts transforms some of the pendulum's mechanical energy into other forms of energy.

• The pendulum stops moving because all of its mechanical energy has been transformed into thermal energy and sound energy.

• Conservation of energy happens only when the parts of the clock are oiled to reduce friction.

• Conservation of energy occurs because the clock's matter is also conserved.

Tags

NGSS.MS-PS3-5

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical

• chemical → electrical → electromagnetic

• thermal → chemical → electromagnetic

• chemical → electrical → chemical