ENERGY TRANSFORMATION

ENERGY TRANSFORMATION

Multiple Choice

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

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

Multiple Choice

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

Multiple Choice

Where is the kinetic energy the greatest?

• A

• B

• C

• D

Multiple Choice

Which object shows an energy transformation from electrical to mechanical?

Multiple Choice

What is the energy transformation that occurs in an electric pencil sharpener?

• mechanical energy to electrical energy

• electrical energy to mechanical energy

• radiant energy to sound energy

• chemical energy to mechanical energy

Multiple Choice

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

• thermal to electrical

• mechanical to thermal

• electrical to thermal

• electrical to sound

Multiple Choice

According to the Law of Conservation of Energy, energy cannot be _________ or ____________.

• destroyed, destroyed

• created, saved

• created, destroyed

• lost, found

Multiple Choice

Electrical Energy is transferred to _____ Energy.

• Thermal

• Solar

• Electrical

• None

Multiple Choice

A hairdryer converts --

• electrical energy into chemical

• electrical energy into thermal

• chemical energy into mechanical

• thermal energy into mechanical

Multiple Choice

The roller coaster cart has the most kinetic energy at position-

• W

• X

• Y

• Z

Multiple Choice

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical

• chemical → electrical → light

• thermal → chemical → light

• chemical → electrical → chemical

Multiple Choice

If a Lion ate a gazelle what kind of energy is being transferred?

• Mechanical

• Chemical

• Electrical

• Thermal

Multiple Choice

Which kind of energy change occurs when a candle is burning?

• Chemical to light.

• Light to electrical.

• Solar to heat.

• Chemical to electrical.

Multiple Choice

What energy transformation occurs when an alarm clock rings?

• electrical to mechanical, sound

• chemical to mechanical,sound

• electrical to thermal, chemical

• mechanical to mechanical, thermal, sound

Multiple Choice

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

• mechanical energy to chemical energy

• thermal energy to mechanical energy

• chemical energy to mechanical energy

• mechanical energy to thermal energy