Energy Transformation

Some students observing a classroom device being used noticed the below energy transformations. Which device were the students most likely observing?

Electrical --> Mechanical --> Sound

• A triple beam balance measuring an object’s mass

• A pencil sharpener plugged into a wall outlet

• A projector displaying a diagram on the screen

• A working flashlight used to light up a dark corner

Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken.

• Water heated by the sun evaporates.

• A plant makes sugar in the sunlight.

• A battery causes a buzzer to vibrate.

Tags

NGSS.MS-LS1-6

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

• Chemical to light

• light to electrical

• Solar to heat

• chemical to electrical

Which type of energy transformation occurs when a flashlight shines?

• Chemical→thermal→electrical

• Chemical→thermal→light

• Thermal→chemical→light

• Chemical→electrical→chemical

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occur?

• Electrical → Light → Mechanical

• Chemical → Mechanical → Electrical

• Mechanical → Chemical→ Light

• Mechanical → Electrical→ Light

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

Tags

NGSS.MS-LS1-7

Which object shows an energy transformation from electrical to mechanical?

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Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

A hairdryer converts -- 

• electrical energy into chemical
• electrical energy into thermal
• chemical energy into mechanical
• thermal energy into mechanical

Tags

NGSS.MS-PS3-3

What kind of energy is represented in the picture?

• Thermal

• Chemical

• Sound

• Kinetic

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-4