energy transformations (STAAR-like)

The diagram shows the steps necessary to produce the energy needed to run a hair dryer. As it moves from location A to location D in the diagram, the energy stored in the coal -

• is converted to solar energy.

• reduces the friction in the hair dryer.

• is recycled.

• is transformed.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

The illustration shows an example of energy changing forms. Which changes in energy form are illustrated in the diagram?

• electrical --> sound --> light and mechanical

• sound --> mechanical --> light and electrical

• mechanical --> light --> sound and electrical

• light --> electrical --> mechanical and sound

The diagram shows a moving car and the energy transformations occurring. What is the correct sequence of the energy transformations represented in the diagram?

• mechanical --> chemical --> solar

• mechanical --> electrical --> solar

• solar --> electrical --> mechanical

• solar --> chemical --> electrical

The diagram shows a home with a solar heating system. What is the original source of energy for this heating system?

• heated water

• heated air

• sunlight

• water pump

Tags

NGSS.MS-ESS2-4

What type of energy in gasoline is transformed into mechanical energy in a motorcycle engine?

• chemical

• nuclear

• magnetic

• electrical

As a candle burns, the chemical energy stored in the wax is transformed into -

• heat and light

• electricity and light

• heat and magnetism

• electricity and magnetism

The diagram represents a flashlight that has been turned on. Which form of energy is being converted to electrical energy by the batteries in the flashlight?

• chemical

• nuclear

• solar

• electrical

The diagrams show a model airplane. Which energy transformation occurs in a rubber band powered model airplane when it is flown?

• Thermal energy stored in the rubber band is transformed into chemical energy used by the propeller.

• Kinetic energy stored in the rubber band is transformed into thermal energy used by the propeller.

• Chemical energy stored in the rubber band is transformed into potential energy used by the propeller.

• Potential energy stored in the rubber band is transformed into mechanical energy used by the propeller.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

When electric current flows through the foot contact to the metal filament of a light bulb, electrical energy is converted to -

• heat energy only.

• chemical and light energy.

• heat and light energy.

• light energy only.

A family is moving from Pennsylvania to Connecticut during the summer. As the moving van burns gasoline in its engine, it converts -

• chemical energy into mechanical energy.

• kinetic energy into potential energy.

• thermal energy into electrical energy.

• mechanical energy into kinetic energy.

Tags

NGSS.MS-PS3-5