Energy transfers and transformations

What is the stored energy of an object or material due to its position.

• gravitational potential energy

• kinetic energy

• thermal energy

• chemical energy

This is the energy associated wityh the movement of electrons through a wire or circuit.

• electrical

• mechanical

• nuclear

• kinetic

The faster an object moves, the more of this type of energy it has stored

• moving

• potential

• kinetic

• gravitational

This is the energy of an object due to the motion of its atoms and molecules.

• chemical energy

• sound energy

• radiant energy

• thermal energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The principle of _________ of energy states that energy cannot be created or destroyed only transferred or transformed from one form to another.

• conservation

• transfer

• transformation

• energy

Energy inside the nucleus of an atom.

• electrical

• atomic

• thermal

• nuclear

A lamp is plugged into a wall socket. Once the lamp is turned on, both light and heat come from the lamp. The energy transformation is:

• electrical to light and chemical

• electrical to light and thermal

• electrical to light and sound

• chemical to light and thermal

If you rub your hands together, you will feel the effects of FRICTION. What energy transformation took place?

• kinetic to thermal

• mechanical to thermal

• gravitational potential to thermal

• thermal to kinetic

If you bounce a tennis ball on the ground, it will bounce back up, but not to the original height from where it was dropped. What is taking place, energy-wise speaking?

• At impact, the kinetic energy is transferred to the floor, and converted to heat and sound. These other forms of energy are not recoverable, so the kinetic energy bouncing up is less than bouncing down.

• At impact, the potential energy is transferred to the ball itself, and converted to chemical and sound energies. These other forms of energy are not recoverable, so the kinetic energy bouncing up is less than bouncing down.

• At impact, the kinetic energy is transferred to the ball itself, and converted to heat and sound. These other forms of energy are not recoverable, so the kinetic energy bouncing up is less than bouncing down.

• At impact, the mechanical energy is transferred to the ball itself, and converted to kinetic and sound energies. These other forms of energy are not recoverable, so the kinetic energy bouncing up is less than bouncing down.

Tags

NGSS.MS-PS3-5

If you want to make a homemade rocket, you can mix baking soda and vinegar. The top of the bottle will fly off. What are the energy transformations taking place?

• chemical energy to thermal energy

• chemical energy to heat

• chemical energy to light

• chemical energy to kinetic energy