Energy Transformations

What is the best example of a machine that converts electrical energy into kinetic energy and sound energy?

• An electric toothbrush
• A toaster
• A flashlight
• An iron

Tags

NGSS.MS-PS3-5

What best describes the energy conversion that occurs when you turn on a hair dryer?

• chemical to thermal to light and sound
• electrical to kinetic to thermal and sound
• nuclear to electrical to thermal and sound
• kinetic to light to thermal and sound

Tags

NGSS.MS-PS3-3

Which of the following converts chemical energy to kinetic energy to electrical energy?

• a wood stove
• a blender
• an electric motor
• a generator

Tags

NGSS.HS-PS3-3

Solar energy is a form of what kind of energy?

• chemical energy
• mechanical energy
• electromagnetic energy
• thermal energy

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

An electric motor converts electrical energy into -

• kinetic energy
• light energy
• chemical energy
• thermal energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What best describes the energy conversion that takes place in a microwave oven?

• electrical to thermal to sound
• chemical to thermal to light
• electrical to light to thermal
• nuclear to thermal to chemical

Tags

NGSS.MS-PS3-3

Which example is NOT a fossil fuel?

• petroleum
• natural gas
• coal
• water

An old lady uses a fan to cool off on a hot day.  What type of energy conversion is occurring with the fan?

• electrical to mechanical
• heat to light
• electrical to light
• chemical to mechanical

Energy is the ability to do -

• nothing
• power
• work
• energy

Tags

NGSS.MS-PS3-5

All of the following are examples of transverse waves EXCEPT -

• microwaves
• sound waves
• visible light
• x-rays

Tags

NGSS.MS-PS4-1